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fiber into a regular (undoped) optical fiber line. The doped fiber is optically pumped with a second laser wavelength that is coupled into the line in...

Optically Variable Ink (OVI) also called color shifting ink is an anti-counterfeiting measure used on many major modern banknotes, as well as on other...

The BGM-71 TOW ("Tube-launched, Optically tracked, Wire-guided", pronounced /ˈtoʊ/) is an American anti-tank missile. First produced in 1968, TOW is one...

Optical sectioning is the process by which a suitably designed microscope can produce clear images of focal planes deep within a thick sample. This is...

In physics, optically stimulated luminescence (OSL) is a method for measuring doses from ionizing radiation. It is used in at least two applications:...

An optical variable device or optically variable device (OVD) is an iridescent or non-iridescent security feature that exhibits different information,...

both terrestrial and marine origin became more widespread. Optical dating using optically stimulated luminescence (OSL) was developed in 1984 by David...

An optical module is a typically hot-pluggable optical transceiver used in high-bandwidth data communications applications. Optical modules typically have...

essential laser-device component). His notebook included a diagram of an optically pumped laser. It also contained the first recorded use of the term "laser...

Zenni Optical (formerly 19dollareyeglasses.com) is an American online retailer of prescription glasses and sunglasses. Founded in 2003 by Tibor Laczay...

Optically active additive (OAA) is an organic or inorganic material which, when added to a coating, makes that coating react to ultraviolet light. This...

The optical properties of a material define how it interacts with light. The optical properties of matter are studied in optical physics (a subfield of...

non-even surfaces Superior optical properties Durability LOCA follows traditional die-cut film adhesives, also known as optically clear adhesives (OCA tape)...

Sergei; Berglund, Lars (2018). "Optically Transparent Wood: Recent Progress, Opportunities, and Challenges". Advanced Optical Materials. 6 (14) 1800059. doi:10...

(/ɪˈnænti.əmər, ɛ-, -oʊ-/ ih-NAN-tee-ə-mər), also known as an optical isomer, antipode, or optical antipode, is one of a pair of molecular entities which are...

transparent conductive coatings is indium tin oxide (ITO). ITO is not very optically transparent, however. The layers must be thin to provide substantial transparency...

classified as "optical activity". Optical activity is reciprocal, i.e. it is the same for opposite directions of wave propagation through an optically active...

Optical chip may refer to: An integrated circuit that acts as the electrical-optical interface for fiber-optic communication A vision chip which combines...

In physics, optical depth or optical thickness is the natural logarithm of the ratio of incident to transmitted radiant power through a material. Thus...

A passive optical network (PON) is a fiber-optic telecommunications network that uses only unpowered devices to carry signals, as opposed to electronic...

satellites. The vast majority of the world's oceans by area are optically deep. Optically deep water can still be relatively shallow water in terms of total...

bonded to a second, equally thin but blank, disc using UV-curable Liquid optically clear adhesive, forming a DVD disc. This leaves the data in the middle...

subject to fading upon prolonged exposure to UV, due to the formation of optically inactive cis-stilbenes. They are also degraded by oxygen in air, like...

in which clusters of ligand coated nano-particles are both optically trapped and optically detected after target molecule induced clustering was proposed...

some techniques allow them to be used with analog signals. The value of optically coupling a solid state light emitter to a semiconductor detector for the...

complete lens assembly while the magnification of the lens changes) or optically (arranging the position of the focal plane to vary as little as possible...

An optical cavity, resonating cavity or optical resonator is an arrangement of mirrors or other optical elements that confines light waves similarly to...

1038/221527a0. S2CID 4295264. Shearer, A.; Golden, A. (2022). "Why study pulsars optically?". Proceedings of the 270. WE-Heraeus Seminar on Neutron Stars, Pulsars...

cable, also known as an optical-fiber cable, is an assembly similar to an electrical cable but containing one or more optical fibers that are used to...

written to an optical disc, disk sector by disc sector, including the optical disc file system. ISO images contain the binary image of an optical media file...

A diffractive optically variable image device (DOVID) is a type of optical variable device; a security feature based on visual effects created by diffraction...

demonstrated optical communications to and from Earth using the Orion Artemis II Optical Communications System (O2O), which uses laser beams. Such an optical system...

or a phonon. Optical decay is dominant mechanism of quenching of excitation of active optical media. In solid-state lasers the optical decay limits the...

army as late as 1975. In the present day a variety of electronic systems optically transmit and receive information carried by pulses of light. Fiber-optic...

is observed in many non-linear optical systems. One of the most common examples is an optical ring resonator. Optical chaos was a field of research in...

ceramic composed of aluminium, oxygen and nitrogen. Aluminium oxynitride is optically transparent (≥80% for 2 mm thickness) in the near-ultraviolet, visible...

An optical flat is an optical-grade piece of glass lapped and polished to be extremely flat on one or both sides, usually within a few tens of nanometres...

In optics, optical path length (OPL, denoted Λ in equations), also known as optical length or optical distance, is the vacuum length that light travels...

Nintendo optical discs are physical media used to distribute video games on three of Nintendo's consoles that released between 2001 and 2012. Manufactured...

An optical isolator, or optical diode, is an optical component which allows the transmission of light in only one direction. It is typically used to prevent...

instrument used to measure optical rotation: the angle of rotation caused by passing linearly polarized light through an optically active substance. Some...

Optically stimulated luminescence (OSL) thermochronometry is a dating method used to determine the time since quartz and/or feldspar began to store charge...

the distances between cities. The multiplication is performed optically by using an optical correlator. Many computations, particularly in scientific applications...

In physics, optically detected magnetic resonance (ODMR) is a technique for detecting quantum systems with spin-dependent optical transitions. In the...

occurrence of events. More specifically, an optical buffer serves to store data that was transmitted optically (i.e., in the form of light), without converting...

The optical window is the portion of the optical spectrum that is not blocked by the Earth's atmosphere. The window runs from around 300 nanometers (ultraviolet-B)...

of Photographic Instrumentation Engineers, later the Society of Photo-Optical Instrumentation Engineers) is an international not-for-profit professional...

An optical mount is a device used to join a normal camera and another optical instrument, such as a microscope or telescope. The optical mount is generally...

spinning optical disc. An older example of optical storage that does not require the use of computers, is microform. There are other means of optically storing...

perpendicular to the optic axis, although the crystal as a whole remains optically anisotropic. The internal structure of crystals (the specific structure...

suitable for manufacturing optical lenses, prisms, and optoelectronics materials. Extruded glass fibres have applications as optical fibres in communications...

between atoms. Diffraction effects limit the ability of an optical detector to optically resolve separate light sources. In general, light that is passing...

independently operated mixing stations. The eight tracks were then recorded optically onto 35-mm film, with a ninth track adding tempo for Disney's artists...

with the target (such as iron sights on firearms), or optical instruments that provide an optically enhanced—often magnified—target image aligned in the...

Target Optical is an optical company in United States. It operates optical stores inside Target stores in United States. Target Optical was founded by...

A flat-spectrum radio quasar, also known as a optically violent variable quasar or OVV quasar, is a type of highly variable quasar. It is a subtype of...

thyristor (LTT) has an optically sensitive region in its gate, into which electromagnetic radiation (usually infrared) is coupled by an optical fiber. Since no...

Optical phenomena are any observable events that result from the interaction of light and matter. All optical phenomena coincide with quantum phenomena...

It is a device for measuring changes in the dimensions of a specimen, optically, the achieved resolution can result in greater values than those of a...

Optical character recognition (OCR) or optical character reader is the electronic or mechanical conversion of images of typed, handwritten or printed text...

Photonics Encyclopedia on fiber amplifiers and Raman amplifiers Current Trends in Unrepeatered Systems including ROPA Remote Optically-Pumped Amplifier...

An optical mouse is a computer mouse which uses a light source, typically a light-emitting diode (LED), and a light detector, such as an array of photodiodes...

stimulated emission can take place and the medium can act as a laser or an optical amplifier. The pump power must be higher than the lasing threshold of the...

depends on the fact that optical activity is actually circular birefringence. In other words, a substance which is optically active transmits right circularly...

up the majority of the mass of galaxy clusters, but cannot be detected optically. As galaxy clusters form, massive amounts of energy are released due to...

Optical materials are transparent materials from which optical lenses, prisms, windows, waveguides, and second-surface mirrors can be made. They are required...

Matt Quinn, known by his stage name Optical, is a British musician, producer and DJ. He is co-founder and owner of Virus Recordings, a widely regarded...

electromagnetic (optical) and the electrical (electronic) states of materials. The electro-optic effect is a change in the optical properties of an optically active...

microscope, telescope, or binoculars. Optically, defocus refers to a translation of the focus along the optical axis away from the detection surface....

An optical spectrometer (spectrophotometer, spectrograph or spectroscope) is an instrument used to measure properties of light over a specific portion...

aberration is a property of optical systems, such as lenses and mirrors, that causes the image created by the optical system to not be a faithful reproduction...

An optical microcavity or microresonator is a structure formed by reflecting faces on the two sides of a spacer layer or optical medium, or by wrapping...

such as in the deuterated benzyl alcohol PhCHDOH; which is chiral and optically active ([α]D = 0.715°), even though the non-deuterated compound PhCH2OH...

of optical elements remains stable over time. Many optical systems require that vibration of optical elements be kept small. As a result, optical tables...

number panel of the banknote is printed in embedded fluorescent fibers and optically variable ink. Since 2005 additional security features like machine-readable...

panel of the banknote was printed in embedded fluorescent fibres and optically variable ink. Since 2005, additional security features (including machine-readable...

An optical jukebox is a robotic data storage device that can automatically load and unload optical discs from drives, such as CD, DVD, Blu-ray, or UDO...

holography techniques, or by using the superpixel method. The image on an optically addressed spatial light modulator, also known as a light valve, is created...

conversion, by heat or by chemical reaction, of an optically active compound into a racemic (optically inactive) form. This creates a 1:1 molar ratio of...

of optical communication for transmitting information from one place to another by sending pulses of infrared or visible light through an optical fiber...

magnitudes are approximate. Telescope sensitivity depends on observing time, optical bandpass, and interfering light from scattering and airglow. Angular diameter...

An optical axis is an imaginary line that passes through the geometrical center of an optical system such as a camera lens, microscope or telescopic sight...

tracing of light through an optical system (such as a lens). A paraxial ray is a ray that makes a small angle (θ) to the optical axis of the system, and lies...

conventional optical microscopy contributed significantly to the development of near-field optical devices, most notably the near-field scanning optical microscope...

In optics, optical power (also referred to as dioptric power, refractive power, focal power, focusing power, or convergence power) is the degree to which...

Optical manufacturing and testing is the process of manufacturing and testing optical components. It spans a wide range of manufacturing procedures and...

The optical square uses a pentaprism to reflect and refract a beam or sighting 90 degrees, it is used in pairs in surveying and in a singular block in...

An optical ground wire (also known as an OPGW or, in the IEEE standard, an optical fiber composite overhead ground wire) is a type of cable that is used...

JORDY or Joint Optical Reflective Display is an optical viewing device developed based on NASA technology. It is used to help the visually impaired see...

compound or meso isomer is an optically inactive isomer in a set of stereoisomers, at least two of which are optically active. This means that despite...

Optical tomography is a form of computed tomography that creates a digital volumetric model of an object by reconstructing images made from light transmitted...

energy flow. Rays are used to model the propagation of light through an optical system, by dividing the real light field up into discrete rays that can...

The European Physical Journal D: Atomic, Molecular, Optical and Plasma Physics is an academic journal recognized by the European Physical Society, presenting...

in holographic data storage. Polarization-sensitive photodetectors use optically anisotropic materials to detect photons of a desired linear polarization...

optical attenuator, or fiber optic attenuator, is a device used to reduce the power level of an optical signal, either in free space or in an optical...

Such lasers are not electrically driven but optically driven and therefore still necessitate a further optical pump laser source. Photonics is the science...

includes optical engineering, fiber optics and optical communications, lasers and laser optics, nonlinear optics, integrated optics, optical and photonic...

behaviour of a simultaneously geometrically thick and optically thin ring. The γ ring is narrow, optically dense and slightly eccentric. Its orbital inclination...

Optical networking is a means of communication that uses signals encoded in light to transmit information in various types of telecommunications networks...

Optical 88 (Chinese: 眼鏡88) is a chain of eyewear stores in Hong Kong. In 1984, the predecessor of Optical 88, a group of optometrists, established EyeCare...

Nullus in Wiktionary, the free dictionary. Null may refer to: Nuller, an optical tool using interferometry to block certain sources of light Null (SQL)...

condensed matter, specifically in solids and some liquids. In the context of optically trapped objects, the quantized vibration mode can be defined as phonons...

compound with the formula LaAlO3, often abbreviated as LAO. It is an optically transparent ceramic oxide with a distorted perovskite structure. Crystalline...

Cinerama's Russian Adventure (1966) optically converted from Kinopanorama to 70 mm Cinerama This Is Cinerama (1972) – optically converted from Cinerama to 70 mm...

Sunny Optical Technology (Group) Company Limited, known as Sunny Optical or just Sunny is a Chinese civilian-run enterprise and listed company that produces...

An optical train, also called an optical assembly, is an arrangement of optical components (e.g. lenses, mirrors, prisms) to guide a line of sight and/or...

circuits, optical interconnects refers to any system of transmitting signals from one part of an integrated circuit to another using light. Optical interconnects...

Optical units are dimensionless units of length used in optical microscopy. They are used to express distances in terms of the numerical aperture of the...

Medical optical imaging is the use of light as an investigational imaging technique for medical applications, pioneered by American Physical Chemist Britton...

In visual perception, an optical illusion (also called a visual illusion) is an illusion caused by the visual system and characterized by a visual percept...

crystals can be used as optical amplification media, where Er3+ ions are optically pumped at around 980 or 1480 nm and then radiate light at 1530 nm in stimulated...

icositetrahedra but, as first observed by Sir David Brewster in 1821, they are not optically isotropic, and are therefore pseudo-cubic. Goniometric measurements made...

Y. Y.; Butov, L. V.; Wilkes, J.; Hanson, M.; Gossard, A. C. (2014). "Optically controlled excitonic transistor". Applied Physics Letters. 104 (9): 091101...

important tool in the production of optically active compounds, including drugs. Another term with the same meaning is optical resolution. The use of chiral...

nonlinearities in the optical behaviour of a material, i.e. the motion of bound electrons, field-induced vibrational or orientational motions, optically-induced acoustic...

An image scanner (often abbreviated to just scanner) is a device that optically scans images, printed text, handwriting, or an object and converts it...

biologics manufacturing, magnetic tape data storage, optical films for flat-panel displays, optical devices, photocopiers, printers, digital cameras, color...

An optical interleaver is a 3-port passive fiber-optic device that is used to combine (Mux) two sets of dense wavelength-division multiplexing (DWDM)...

Optical feedback (OF) refers to the phenomenon in a laser, where a part of the coherent emission light returns to the laser cavity. The effect is typical...

come to believe that features smaller than 1 micron could not be printed optically. Modern techniques using excimer laser lithography already print features...

An optical baffle is an opto-mechanical construction designed to block light from a source shining into the front of an optical system and reaching the...

Hóng Jiàn-8; lit. 'Red Arrow-8') is a second generation tube-launched, optically tracked, wire-guided anti-tank missile system which was originally deployed...

Optical radiation is the part of the electromagnetic spectrum with wavelengths between 100 nm and 1 mm. This range includes visible light, infrared light...

Optical pumping is a process in which light is used to raise (or "pump") electrons from a lower energy level in an atom or molecule to a higher one. It...

Optical path (OP) is the trajectory that a light ray follows as it propagates through an optical medium. The geometrical optical-path length or simply...

consist of three pairs of points located on the optical axis of a rotationally symmetric, focal, optical system. These are the focal points, the principal...

Optical microspheres (photonic atoms) are one of the types of optical microresonators (also microcavities) employed commonly in photonic research; they...

(Sulu), respectively. This is also the only note for the series that uses optically variable ink. (OVI) At the lower left beside the OVI has the microprint...

foreground opaque. Next, a three-layer sandwich of film is run through an optical printer. On the bottom is the unexposed copy film. Above it is the first...

Optical engineering is the field of engineering encompassing the physical phenomena and technologies associated with the generation, transmission, manipulation...

surrounds a person in religious art Halo (optical phenomenon), glory (optical phenomenon) or corona (optical phenomenon), phenomena where a ring of light...

direction of wave propagation relative to the direction of change in speed. Optical prisms and lenses use refraction to redirect light, as does the human eye...

the bonds if they are rubbed during handling. To reduce this, edges of optically bonded displays should be covered or configured so that edges are not...

amateur astronomers are likely to see through their telescopes. This is the optically brightest quasar in the sky from Earth with an apparent visual magnitude...

Hakim Optical Lab Ltd. is a Canadian optical chain, the largest privately owned optical chain in Canada. In 2016, it had about 160 stores. Karim Hakimi...

that falls on them and reflect little of it; such materials are called optically transparent. Many liquids and aqueous solutions are highly transparent...

research on optical vortices, the optical vortex coronagraph, optical lift, and diffractive solar sails. He is a Fellow of Optica (formerly the Optical Society...

Interface by the Optical Internetworking Forum (OIF) for connecting a synchronous optical networking (SONET) framer component to an optical serializer/deserializer...

An optical parametric amplifier, abbreviated OPA, is a laser light source that emits light of variable wavelengths by an optical parametric amplification...

In computing, an optical disc drive (ODD) is a disc drive that uses laser light or electromagnetic waves within or near the visible light spectrum as...

An optical time-domain reflectometer (OTDR) is an optoelectronic instrument used to characterize an optical fiber. It is the optical equivalent of an...

amplitude of an electronic signal. Optical attenuator, an electronic device that reduces the amplitude of an optical signal. Attenuator (genetics), a specific...

Electro-optic rectification (EOR), also referred to as optical rectification, is a non-linear optical process that consists of the generation of a quasi-DC...

In optics, optical bistability is an attribute of certain optical devices where two resonant transmissions states are possible and stable, dependent on...

comparison of optical clocks across six countries was reported — marking a major step towards establishing a global optical-time standard. Optical atomic clocks...

A halo (from Ancient Greek ἅλως (hálōs) 'threshing floor, disk') is an optical phenomenon produced by light (typically from the Sun or Moon) interacting...

Transitions Optical is a U.S.-based company known for manufacturing photochromic lenses, which darken on exposure to specific types of light. The company...

An optical tracer is an X-Y tooling machine which utilises a photoeye to track toolpaths printed on a full-scale drawing and move a tool head accordingly...

material for optical waveguides, mobile phones, piezoelectric sensors, optical modulators and various other linear and non-linear optical applications...

The High Energy Laser with Integrated Optical-dazzler and Surveillance (HELIOS) or Mk 5 Mod 0 HELIOS is a Lockheed Martin-developed 60 kilowatt high-energy...

Optical Materials is a peer-reviewed scientific journal that publishes original papers and review articles on the design, synthesis, characterisation...

is a distributed amplitude of color(s). In optics, the term image (or optical image) refers specifically to the reproduction of an object formed by light...

Communications Conference) Optical amplifier Optical communication Optical fiber Optical interconnect Opto-electronic oscillator Parallel optical interface Photoemission...

developments in the optical sector, changes to legislation affecting optometrists and optical professionals, developments in the optical business and retail...

An optical neural network is a physical implementation of an artificial neural network with optical components. Early optical neural networks used a photorefractive...

Optical margin alignment outdents letters like A, V, W, Y, and punctuation into the margins to align the text border optically. Some users remark that...

separate left and right circularly polarized light beams through the same optical fiber. Polarization techniques have long been used in radio transmission...

Optical film may refer to: Thin film optics, a branch of optics that deals with very thin structured layers of different materials Film, moving picture...

Optical clocks are a subset of atomic clocks and are based on transitions that emit electromagnetic radiation in the range of 200 nm to 1000 nm. Optical...

List of largest optical reflecting telescopes – List of large optical telescopes List of largest optical refracting telescopes List of space telescopes...

Optical spaces are mathematical spaces, often endowed with coordinate systems, that facilitate the modelling of optical systems as mathematical transformations...

The optical transfer function (OTF) of an optical system such as a camera, microscope, human eye, or projector is a scale-dependent description of their...

Many ceramic materials, both glassy and crystalline, have found use as optically transparent materials in various forms: bulk solid-state components (phone...

analogue optical track technology has also changed: in the early years of the 21st century, distributors changed to using cyan dye optical soundtracks...

with a common motion. He is also the namesake of a catalog of compact, optically bright galaxies (including both starbursts and active galactic nuclei)...

individual dots or patches that interact optically. By requiring the viewer to combine the colors optically instead of physically mixing pigments, Divisionists...

Optical conductivity is the property of a material which gives the relationship between the induced current density in the material and the magnitude...

it began to manufacture microscopes. Later that year, the Bausch & Lomb Optical Company won a distinction at the Philadelphia Centennial Exposition. The...

The Frank Isakson Prize for Optical Effects in Solids is a prize that has been awarded every second year by the American Physical Society since 1980....

Optical glass refers to a quality of glass suitable for the manufacture of optical systems such as optical lenses, prisms or mirrors. Unlike window glass...

from the original on 19 September 2020, retrieved 24 October 2020 Optical Course, OpticalCourse.com, retrieved 7 May 2014 Cable Temples, archived from the...

An optical turnstile (also called a speed gate) is a type of turnstile designed to restrict or control access to a building or secure area. Optical turnstiles...

the optical property of a material having a refractive index that depends on the polarization and propagation direction of light. These optically anisotropic...

extinction ratio (re) is the ratio of two optical power levels of a digital signal generated by an optical source, e.g., a laser diode. The extinction...

the field of optical and electro-optical instrumentation. Their objective is to develop products like night vision devices, electro-optical surveillance...

vertical components of the QR image. Whereas a barcode is a machine-readable optical image that contains information specific to the labeled item, the QR code...

use methods such as monitoring electromagnetic radiation, searching for optical signals, and investigating potential extraterrestrial artifacts for any...

Optical mineralogy is the study of minerals and rocks by measuring their optical properties. Most commonly, rock and mineral samples are prepared as thin...

technology is a light optical process of fluorescence microscopy which allows position, distance and angle measurements on "optically isolated" particles...

amplifiers. Late in the 20th century, all cables installed use optical fiber as well as optical amplifiers, because distances range thousands of kilometers...

praised the lens for its sharpness, low distortion and weatherproof, optically stabilised design, while also drawing attention to its vignetting of up...

Sony's Cyber-shot product line, in addition to SteadyShot INSIDE (SSI) and Optical SteadyShot (OSS) in the Sony α family. When a camera is operated hand-held...

An optical mesh network is a type of optical telecommunications network employing wired fiber-optic communication or wireless free-space optical communication...

Feng; Narayan, Ramesh (September 2004), "On the Nature of X-Ray-Bright, Optically Normal Galaxies", The Astrophysical Journal, 612 (2): 724–728, arXiv:astro-ph/0401117...

founded a branch in New York that was to become the C. P. Goerz American Optical Company in 1905. This company continued to operate independently in the...

number panel of the banknote is printed in embedded fluorescent fibers and optically variable ink. Since 2005 additional security features like machine-readable...

object interacts. For example, the term subwavelength-diameter optical fibre means an optical fibre whose diameter is less than the wavelength of light propagating...

Stereophile.com". February 2013. Náfrádi, Bálint (24 November 2016). "Optically switched magnetism in photovoltaic perovskite CH3NH3(Mn:Pb)I3". Nature...

In optics, any optical instrument or system – a microscope, telescope, or camera – has a principal limit to its resolution due to the physics of diffraction...

An optical modulator is a device which is used to modulate a beam of light. The beam may be carried over free space, or propagated through an optical waveguide...

Optical format is a hypothetical measurement approximately 50% larger than the true diagonal size of a solid-state photo sensor. The use of the optical...

Recon Optical (Recon/Optical, Inc. or ROI) was a privately held defense contractor providing electro-optical and stabilization products. Founded in 1922...

rhinestone, watches and accessories; Swarovski Optik, which produces optical instruments such as telescopes, telescopic sights for rifles, and binoculars;...

Optical disc packaging is the packaging that accompanies CDs, DVDs, and other formats of optical discs. Most packaging is rigid or semi-rigid and designed...

optical multiple stars, which merely look close together when viewed from Earth. Multiple stars may refer to either optical or physical, but optical multiples...

Optical performance monitoring (OPM) is used for managing high capacity dense wavelength-division multiplexing (DWDM) optical transmission and switching...

said to be “optically active”. Specific rotation is an intensive property, distinguishing it from the more general phenomenon of optical rotation. As...

Optically transparent materials focus on the response of a material to incoming light waves of a range of wavelengths. Frequency selective optical filters...

derivatives. Aside from the reticle, it is the same mechanically and optically as the M145 Machine Gun Optic. An optic designated as M/98 for the Danish...

City Monitor. Retrieved 4 November 2022. "Debunking the myths around the optically-guided bus (trackless trams)". sydney.edu.au. The University of Sydney...

Therefore the optical power of the measurement arm is directly proportional to the electrical power and electrical signals from optical interferometry...

connecting lengths of electrical cables (electrical splice) or optical fibers (optical splice). The splices are often protected by sleeves. The splicing...

An optical telegraph is a line of stations, typically towers, for the purpose of conveying textual information by means of visual signals (a form of optical...

Army. The design never entered service, with the bullpup configured, optically sighted 5.56 mm F-88 Austeyr selected instead in 1989. List of bullpup...

to: Half of the angular aperture of an optical system Acceptance angle (optical fiber), the angle in an optical fiber below which rays are guided rays...

dielectric permittivity tensor is diagonal. This effect occurs in most optically transparent dielectric materials (including liquids) under the influence...

segment utilizes optical coating technology for anti-counterfeiting products, and other optics. The anti-counterfeiting products are Optically Variable Pigment...

cannot, by definition, be optically transfected (only optically injected). Photoporation (or any derivations of [laser-] or [optical-] or [opto-] or [photo-]...

An optical waveguide is a physical structure that guides electromagnetic waves in the optical spectrum. Common types of optical waveguides include optical...

stability in optomechanical systems. This is done by minimizing variations in optical performance over a range of temperatures. Optomechanical systems are typically...

In optics, a dispersive prism is an optical prism that is used to disperse light, that is, to separate light into its spectral components (the colors...

diffraction from the optical system's aperture; diffraction is the ultimate limit to the light focusing ability of any optical system. Aberrations tend...

into a star's surface until the plasma becomes opaque, equivalent to an optical depth of approximately 2⁄3, or equivalently, a depth from which 50% of...

artifacts appearing in photographic images and video recordings. Most optical analyses to date have concluded that the images are insects moving across...

stores program instructions in electronically, electromagnetically, or optically accessible memory. This contrasts with systems that stored the program...

discharges. Sprites are associated with various other upper-atmospheric optical phenomena including blue jets and ELVES. A sprite at the horizon, with...

The optical stretcher is a dual-beam optical trap that is used for trapping and deforming ("stretching") micrometre-sized soft matter particles, such as...

orientation in which the instrument produces poor or no measurements. All optically pumped, proton-free precession, and Overhauser magnetometers experience...

short for Flexible Ethernet, is a communications protocol published by the Optical Internetworking Forum (OIF). The OIF published the FlexE Interoperability...

Optical flow or optic flow is the pattern of apparent motion of objects, surfaces, and edges in a visual scene caused by the relative motion between an...

An optical circulator is a three- or four-port optical device designed such that light entering any port exits from the next. This means that if light...

digital types, which include digital cameras, camera modules, camera phones, optical mouse devices, medical imaging equipment, night vision equipment such as...

GKB Optic is an Indian retailer of optical products, and operates a chain of retail stores in India. The company was founded by Brijendra Kumar Gupta...

An optical filter is a device that selectively transmits light of different wavelengths, usually implemented as a glass plane or plastic device in the...

deep hologram. The objects that form the scene must, in general, have optically rough surfaces so that they scatter light over a wide range of angles...

(WDM) is a technology which multiplexes a number of optical carrier signals onto a single optical fiber by using different wavelengths (i.e., colors)...

storage is optical disc storage where the magnetic state on a ferromagnetic surface stores information. The information is read optically and written...

The Tower Optical Company is a small, Norwalk, Connecticut-based company which has manufactured a binocular viewers used at major tourist sites in the...

and integrate the spacecraft in which the telescope would be housed. Optically, the HST is a Cassegrain reflector of Ritchey–Chrétien design, as are...

Coherent Corp. (formerly II-VI Incorporated) is an American manufacturer of optical materials and semiconductors. As of 2023, the company had 26,622 employees...

Wollensak Optical was an American manufacturer of audio-visual products located in Rochester, New York. At the height of their popularity in the 1950s...

size, of something. This enlargement is quantified by a size ratio called optical magnification. When this number is less than one, it refers to a reduction...

electromagnetic radiation where the wavelength is comparable to the size of the optical components (e.g. lenses, mirrors, and apertures) and hence diffraction...

The manipulation of atoms using optical fields is a vital and fundamental area of research within the field of atomic physics. This research revolves...

Sterling Optical is an American franchised retail optical chain headquartered in New York, New York. Its parent company is Emerging Vision, whose CEO is...

the bandwidth efficiency of multicarrier system such as OFDM with using optical fiber channel is defined as η = 2 R s B OFDM {\displaystyle \eta =2{\frac...

An optical prism is a transparent optical element with flat, polished surfaces that are designed to refract light. At least one surface must be angled—elements...

nonlinear optical effect where one wavelength of light can affect the phase of another wavelength of light through the optical Kerr effect. When the optical power...

it is available as an RS model, which is technically the same, only optically upgraded and painted in different colors. "Kisbee RS". Peugeot Scooters...

150-450mm F4.5-5.6 ED DC AW is a super-telezoom lens for Pentax K-mount. Optically, it features extra-low dispersion (ED) elements as well as HD, SP (Super...

electron-vibration interaction at specific energies that can also measure optically forbidden transitions. Inelastic neutron scattering is similar to Raman...

An optical trackpad is an input device based on an optical sensor, which detects the displacement of a finger that is moving on top of it. The sensor...

polarizes the atoms. An orthogonal probe beam detects the precession using optical rotation of linearly polarized light. In a typical SERF magnetometer, the...

Optical resolution is the resolved detail of an imaging system by scale. An imaging system may have many individual components, including one or more...

circular birefringence are manifestations of optical activity. It is exhibited in the absorption bands of optically active chiral molecules. CD spectroscopy...

by means of the photovoltaic effect. Optically pumped lasers, devices that emit light through a process of optical amplification based on the stimulated...

plastic wrap. DARPA plans to use membrane optics as part of its Membrane Optical Imager for Real-Time Exploitation (MOIRE) program. The program uses lightweight...

An optode or optrode is an optical sensor device that optically measures a specific substance usually with the aid of a chemical transducer. An optode...

An optical link is a telecommunications link that consists of a single end-to-end optical circuit. A cable of optical fibers, possibly concatenated into...

In optics, an optical medium is material through which light and other electromagnetic waves propagate. It is a form of transmission medium. The permittivity...

Optica, founded as the Optical Society of America (later the Optical Society), is a professional society of individuals and companies with an interest...

geometrical, mechanical, and transmission attributes of a single-mode optical fibre and cable, developed by the Standardization Sector of the International...

An optical reader is a device that observes visual information and translates it into digital information, as found within most image and barcode and...

and a kickstand supporting an angle of up to 165°. The screen is a 3:2 optically-bonded PixelSense 1800 × 1200 display with a density of 217 PPI and a...

An optical rectenna is a rectenna (rectifying antenna) that works with visible or infrared light. A rectenna is a circuit containing an antenna and a...

In optical physics, laser detuning is the tuning of a laser to a frequency that is slightly off from a quantum system's resonant frequency. When used...

Optical molasses (OM) is a laser cooling configuration that can produce extremely cold ensembles of neutral atoms. The temperatures can reach as low as...

needing the effect. The original footage was spliced mid-shot with the optically printed portion, often resulting in an obvious change in image quality...

optically thin. Starlight traveling through a kiloparsec column undergoes about a magnitude of extinction, so that the optical depth ~ 1. An optical depth...

geometrical, mechanical, and transmission attributes of a single-mode optical fibre and cable, developed by the Standardization Sector of the International...

confined to a waveguide, and also in light waves in an optical fiber and in a laser's optical resonator. Transverse modes occur because of boundary conditions...

In physics, the optical theorem is a general law of wave scattering theory, which relates the zero-angle scattering amplitude to the total cross section...

this range of wavelengths is called visible light (or simply light). The optical spectrum is sometimes considered to be the same as the visible spectrum...

class of techniques that improve the resolution of an imaging system. In optical SR the diffraction limit of systems is transcended, while in geometrical...

stimulate external mediums. The generated pulses are typically electrical, optical, thermal, or mechanical in nature, though other manifestations are possible...

The compact disc (CD) is a digital optical disc data storage format co-developed by Philips and Sony to store and play digital audio recordings. It employs...

An optical correlator is an optical computer for comparing two signals by utilising the Fourier transforming properties of a lens. It is commonly used...

Thirds system format DSLR cameras, but replaces the complex optical path needed for the optical viewfinder with an electronic viewfinder EVF displaying a...

signals on videotape, digitally in video tape or as computer files stored on optical discs, hard drives, SSDs, magnetic tape or memory cards instead of film...

that measure chemical and physical properties of materials, including optical sensors for refractive index measurement, vibrational sensors for fluid...

spacecraft to use that technology. It is also the first mission to use laser optical communications beyond the Earth-Moon system. The proposal for the Psyche...

1917. It claims to be the world's longest established optical trade body. Its members are optical companies involved in aspects of manufacturing, importing...

An optical fiber connector is a device used to link optical fibers, facilitating the efficient transmission of light signals. An optical fiber connector...

of Optical Communications and Networking is a peer-reviewed scientific journal co-published monthly by Optica and IEEE. It covers advances in optical networking...

Stripping is the act of removing the protective polymer coating around optical fiber in preparation for fusion splicing. The splicing process begins by...

Shohei Hashiguchi, Kunihiko Murata, Ryōji Noyori (2005). "Preparation of Optically Active (R,R)-Hydrobenzoin from Benzoin or Benzil". Organic Syntheses....

uses point illumination (see Point Spread Function) and a pinhole in an optically conjugate plane in front of the detector to eliminate out-of-focus signal...

molecular, and optical (AMO) physics, an optical lattice clock is a type of atomic clock that uses neutral atoms confined in an optical lattice, which...

A kinebar is a gold bar that has a diffractive optically variable image device (similar to a security hologram) embossed into the surface of the gold...

with Heinrich Otto Wieland). Examples of syntheses performed using the optically active enantiomer of this diketone as a starting material are that of...

Recoating is the process of restoring the primary coating to stripped optical fiber sections after fusion splicing. In the recoating process, the spliced...

Optical Delusion is the tenth studio album by English electronic music duo Orbital, released on 17 February 2023. According to the review aggregator Metacritic...

multi-LED high-speed projectors. The specially built multi-LED IR projectors optically encode the space. Instead of retro-reflective or active light emitting...

2019 Allen, Susan Davis (1971-08-01). "The circular dichroism of an optically active benzene chromophore :: University of Southern California Dissertations...

Independent. Archived from the original on 13 July 2019. Retrieved 10 May 2015. "Optical illusion: Dress color debate goes global". BBC News. BBC. Archived from...

the world's highest located sites for optical, infrared, and gamma-ray telescopes. It is the tenth-highest optical telescope in the world. The Indian Astronomical...

The Optical Confederation is a British trade association launched in April 2010. It is said to help the optometric profession to "punch well above its...

the sections by other means, such as capacitive, inductive, radiative, optical, acoustic, or mechanical coupling. Galvanic isolation is used where two...

zero degrees are called 'optically inactive' chemicals and like water, they do not need to be considered when calculating optical rotation, outside of the...

An optical vortex (also known as a photonic quantum vortex, screw dislocation or phase singularity) is a zero of an optical field; a point of zero intensity...

these being the Kerr electro-optic effect, or DC Kerr effect, and the optical Kerr effect, or AC Kerr effect. The Kerr electro-optic effect, or DC Kerr...

measured electronically, or a mechanical displacement may be measured optically. Compensation for temperature effects is necessary. Its use as a miniaturized...

Plastic optical fiber (POF) or polymer optical fiber is an optical fiber that is made out of polymer. Similar to glass optical fiber, POF transmits light...

light scattering for optically soft spheres. The anomalous diffraction approximation for extinction efficiency is valid for optically soft particles and...

Technicolor movie camera. It is currently used in modern three-CCD cameras. An optically similar system is used in reverse as a beam-combiner in three-LCD projectors...

The Museum of Optical Technologies functions as part of the St. Petersburg State University of Information Technologies, Mechanics and Optics (SPbSU ITMO)...

aperture Interference pattern from two-slit diffraction Two-slit diffraction Optical diffraction pattern Colors in a spider web due to diffraction, The effects...

similar size, their cumulative effect is seen as colours. The cloud must be optically thin, so that most rays encounter only a single droplet. Iridescence is...

Automated optical inspection (AOI) is an automated visual inspection of printed circuit board (PCB) (or LCD, transistor) manufacture where a camera autonomously...

Specsavers Optical Group Limited is a Guernsey-based multinational optical retail chain, which operates mainly in the UK, Ireland, Australia, New Zealand...

medium, the simplest instance being free space. Optics Optical isotropy means having the same optical properties in all directions. The individual reflectance...

CB2, as well as being an inhibitor of pyruvate dehydrogenase kinase. Optically active leelamine is also used as a chiral resolving agent for carboxylic...

spread-spectrum time-domain reflectometry. The equivalent device for optical fiber is an optical time-domain reflectometer. Time-domain transmissometry (TDT)...

This creates an optical virtual private network for each client signal. ITU-T defines an optical transport network as a set of optical network elements...

much longer lifespan than videocassettes. Because the discs were read optically instead of magnetically, no physical contact needed to be made between...

superluminescence is light, produced by spontaneous emission, that has been optically amplified by the process of stimulated emission in a gain medium. It is...

resolution describes the ability of any image-forming device such as an optical or radio telescope, a microscope, a camera, or an eye, to distinguish small...

quantum gap is a discrepancy between the maximum value of the nonlinear-optical susceptibility allowed by quantum mechanics and the highest values actually...

Coherent optical module refers to a typically hot-pluggable coherent optical transceiver that uses coherent modulation (BPSK/QPSK/QAM) rather than amplitude...

ray (also bound ray or trapped ray) is a ray of light in a multi-mode optical fiber, which is confined by the core. For step index fiber, light entering...

an optical level, the process becomes Optical IP Switching. The advantage of OIS comes from the fact that today packets are transmitted optically between...

recognize small details with precision. Visual acuity depends on optical and neural factors. Optical factors of the eye influence the sharpness of an image on...

at Stanford University. He is best known for his work on engineering optically and chemically controllable proteins. Lin graduated from Harvard University...

Lynn Bentley is an American optical physicist who is a professor at the University of Rochester. She is a Fellow of the Optical Society of America and the...

photoelasticity (16 September 1822), elliptical and circular polarization and optical rotation (9 December), and partial reflection and total internal reflection...

phosphorescence. In trapped-charge materials, optical stimulation can release stored charge and produce emission (e.g., optically stimulated luminescence), widely...

waves and signals in electrical circuits, in optical fibers, and in air. Electrical attenuators and optical attenuators are commonly manufactured components...

An optical chopper is a device which periodically interrupts a light beam. Three types are available: variable frequency rotating disc choppers, fixed...

S2CID 58353838. Murray, I.; Dias, T. (2001). "A portable device for optically recognizing Braille. I. Hardware development". The Seventh Australian...

Carbomycin, also known as magnamycin, is a colorless, optically active crystalline macrolide antibiotic with the molecular formula C42H67N O16. It is...

substance obtained from the oxidation of camphor. It exists in three optically different forms; the dextrorotatory one is obtained by the oxidation of...

Etendue or étendue (/ˌeɪtɒnˈduː/) is a property of light in an optical system, which characterizes how "spread out" the light is in area and angle. It...

and terrain conditions of the Korean peninsula. It combines an electro-optically guided 30 mm gun system with a surveillance radar system on a K200 chassis...

Floppy disk An optical disc or magneto-optical disc enclosed in a protective plastic sheath called a Caddy (hardware) Ultra Density Optical Universal Media...

Namibian nation. The Bank of Namibia has discovered that the diamond-shaped optically variable ink patch on the N$10 and N$20 notes was cracking after multiple...

behaviour of light rays in optical systems using the paraxial approximation, in which only rays that make small angles with the optical axis of the system are...

used in diagnostic microscopy, for contrasting a thin specimen with an optically opaque fluid. In this technique, the background is stained, leaving the...

alternates to send the image to either a prism, which shows the image in the optical viewfinder, or the image sensor when the shutter release button is pressed...

by Gunvor Nelson. It uses footage of her daughter Oona that has been optically printed, with Oona's voice used for the soundtrack. The film was selected...

September 30, 2021) was an American scientist. A Bell Labs pioneer in optical communication, he was best known for his 1974 invention of the modified...

telescopes. Near-infrared is typically the longest wavelength that are handled optically, such as in some large telescopes. Wolter, H. (1952). "Glancing Incidence...

art, short for optical art, is a style of visual art that uses distorted or manipulated geometrical patterns, often to create optical illusions. It began...

location of the EOT peak such that the chemical binding events can be optically detected at a desired wavelength. EOT-based sensing offers one key advantage...

Optical sorting (sometimes called digital sorting) is the automated process of sorting solid products using cameras and/or lasers. Depending on the types...

and illumination considerations. It can be a special lens corrected optically for close up work or it can be any lens modified (with adapters or spacers...

emission mode. In transmission mode, where light is passed through an optically cleared sample, one can obtain structural information about the sample...

An optical communications repeater is used in a fiber-optic communications system to regenerate an optical signal. Such repeaters are used to extend the...

_{d}={\frac {\lambda }{\nu }}\Delta f} where λ {\displaystyle \lambda } is the optical wavelength and ν {\displaystyle \nu } is the velocity of the acoustic wave...

filter, producing a non-linearity effect not found in piezoelectric or optical transducers. Pickups are usually designed to feed a high input impedance...

interferometers. In addition to the classical wave model for understanding optical interference, quantum matter waves also demonstrate interference. The above...

the first American spy satellite to use electro-optical digital imaging, and to offer real-time optical observations. Later KH-11 satellites have been...

A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction. A simple lens consists of a single piece of transparent...

include optical transceivers, optical engines, active optical cables, optical components, optical instrumentation, ROADM & wavelength management, optical amplifiers...

a movable optical element that enables the optical system to shift the focus of the target image at varying distances into the same optical plane of the...

Herwig Kogelnik (born June 2, 1932) is an Austrian-American electrical and optical engineer. He is best known for his fundamental contributions to the developments...

telescopes, and camera lenses, the secondary is often mounted on an optically flat, optically clear glass plate that closes the telescope tube. This support...

The American Optical Company, also known as AO Eyewear, is an American luxury eyewear and sunglass company based in Vernon Hills, Illinois, near Chicago...

nanoplasmonics refers to the generation, detection, and manipulation of signals at optical frequencies along metal-dielectric interfaces in the nanometer scale. Inspired...

supports information exchange includes wired media like copper cables, optical fibers, and wireless radio-frequency media. The arrangement of hosts and...

(for example, a "vitreous greasy" lustre). Some minerals exhibit unusual optical phenomena, such as asterism (the display of a star-shaped luminous area)...

Archival Disc (AD) is the trademarked name of a discontinued optical disc storage medium designed by Sony and Panasonic for long-term digital storage...

blurring can be accomplished either optically or with digital postprocessing. Miniatures can be simulated optically by using lens tilt, although the effect...

including LEDs, semiconductors, computer chassis, monitors, motherboards, optical disc drives, and other electronic components. The Lite-On group also consists...

facilitate typing numbers. Optically projected keyboard layouts or similar arrangements of "keys" or sensing areas Optically detected human hand and finger...

Alexander V.; Klar, Thomas A. (2018-09-19). "Power Balance and Temperature in Optically Pumped Spasers and Nanolasers". ACS Photonics. 5 (9): 3695–3703. Bibcode:2018ACSP...

amplifier in a telephone line, an optical repeater is an optoelectronic circuit that amplifies the light beam in an optical fiber cable; and a radio repeater...

OPTOS (optical properties of textured optical sheets) is a simulation formalism for determining optical properties of sheets with plane-parallel structured...

or outgas, meaning optically contacted components exhibit higher laser-damage thresholds and improved thermal stability. In optical metrology, contacting...

source), A gain medium or laser medium, and Two or more mirrors that form an optical resonator. The pump source is the part that provides energy to the laser...

provide this type of kerning. Optical kerning, on the other hand, is available only in the more advanced systems. With optical kerning, the program uses an...

Optical contrast seekers, or simply contrast seekers, are a type of missile guidance system using a television camera as its primary input. The camera...

waves. Thus, an optical fiber or a copper cable is used as transmission media. Electromagnetic radiation can be transmitted through an optical medium, such...

Optical Disc Archive (ODA) is an archival storage technology developed by Sony. A single cartridge is designed to hold as many as 12 optical discs, each...

Folded optics is an optical system in which the beam is bent in a way to make the optical path much longer than the size of the system. This allows the...

discovered by many individuals. Its supernova remnant has been observed optically but was first detected at radio wavelengths. It is often known as 3C 10...

England) is considered a pioneer in the Optical Search For Extraterrestrial Intelligence, also known as Optical SETI (OSETI). While traditional SETI efforts...

wear. They are common in human interfaces such as digital multimeters. Optical: This uses a light shining onto a photodiode through slits in a disc, commonly...

light, and that are optically "soft" (i.e., with a refractive index close to 1). Anomalous diffraction theory applies to optically soft but larger particles...

of individual layers of calcrete together with thermoluminescence and optically stimulated luminescence dating of the loess indicate that each calcrete...

scientific study of the chemistry, crystal structure, and physical (including optical) properties of minerals and mineralized artifacts. Specific studies within...

particularly known for its unusual rheological (or flow) properties. It is optically clear and, in general, inert, non-toxic, and non-flammable. It is one...

star-forming region. They are found near molecular clouds and identified by their optical variability and strong chromospheric lines. T Tauri stars are pre-main-sequence...

optical bandgap, or Tauc bandgap, of either disordered or amorphous semiconductors. In his original work Jan Tauc (/taʊts/) showed that the optical absorption...

connection. Optical signals can also be connected using blind mate connectors providing the capability to link fibre optics on a plug-in card to an optical backplane...

University School of Medicine and was known for contributions to medical optical imaging, wearable health technology, and related biomedical innovations...

makers to reshape most aspects of optical instrument production. His collaboration with Ernst Abbe revolutionized optical theory and practical design of...

Award was first introduced as the Engineering Excellence Award by the Optical Society in 1989 and was awarded individually, or shared among individuals...

limited by the maximum range of sensor movement, where a typical modern optically-stabilized lens has greater freedom. Both the speed and range of the required...

equivalent to angular magnification (this should not be confused with optical power, which is a different quantity). The magnifying power is the ratio...

Quantum optics is a branch of atomic, molecular, and optical physics and quantum chemistry that studies the behavior of photons (individual quanta of...

Okaya Optical Co., Ltd. (岡谷光学機械株式会社; Okaya Kōgaku Kikai Kabushiki Gaisha) was the manufacturer in the 1950s of "Lord" cameras, "Vista" binoculars, and...

interstellar dust and gas. After the protostar blows away this envelope, it is optically visible, and appears on the stellar birthline in the Hertzsprung-Russell...

through a communication medium such as radio waves, cables, waveguides, or optical fibers, to the receiver. It is an equation giving the received power from...

DSC-HX50 is a hyperzoom camera with 30x optical zoom, released in 2013. Wide-angle lens 20.4 megapixel resolution Optical image stabilizer in the lens, reducing...

Optical tape is a medium for optical storage generally consisting of a long and narrow strip of plastic onto which patterns can be written and from which...

reconverting back to optically carried signals. This signal conversion and multiplexing equipment will require power. Using a reconfigurable optical add-drop multiplexer...

optoelectronics devices like laser diodes and photonic integrated circuits for the optical telecommunications industry, to enable wavelength-division multiplexing...

influences the electronic structure of semiconductors and, therefore, their optical band gaps. In a regular semiconductor crystal, the band gap is fixed owing...

Optical burst switching (OBS) is an optical networking technique that allows dynamic sub-wavelength switching of data. OBS is viewed as a compromise between...

short-range surface-to-air missile system. It is visually aimed, and utilizes optical/infrared-guidance. The system is primarily intended to engage low-altitude...

2-methylbutyric acid but also an amount of optically active 2-methyloctanoic acid, which could only have formed from likewise optically active 2-methylheptyllithium...

shapes are sometimes used in optical devices. The most common non-spherical type are parabolic reflectors, found in optical devices such as reflecting telescopes...

coma (/ˈkoʊmə/), or comatic aberration, in an optical system refers to aberration inherent to certain optical designs or due to imperfection in the lens...

A toric lens is a lens with different optical power and focal length in two orientations perpendicular to each other. One of the lens surfaces is shaped...

It is also active in the areas of broadband Internet, optical communications (including optical fiber technologies), wireless technologies, aeronautical...

silent-standard gate and slightly optically recentering the lens port (to adjust for the inclusion of the area of the optical soundtrack – the gray track on...

although typefaces with optical sizes remain rare. The recent variable font technology further allows designers to include an optical size axis for a typeface...

of substrate wafers Monolithically optically pumped VCSELs Two VCSELs on top of each other. One of them optically pumps the other one. VCSEL with longitudinally...

earliest true telegraph put into widespread use was the Chappe telegraph, an optical telegraph invented by Claude Chappe in the late 18th century. The system...

power of the signal reflected by a discontinuity in a transmission line or optical fiber. This discontinuity can be caused by a mismatch between the termination...

optical guidance of the vehicles at the stations. Markings on the roadway and camera systems on the vehicles were used for docking. A similar optical...

called nanoprobing. In bioimaging, nanoprobes are optical devices developed by tapering an optical fiber to a tip measuring 100 nm = 1000 angstroms wide...

of wavelength-division multiplexing, an alien wavelength is a "colored" optical signal that is originated from equipment not under the direct control of...

Near-field scanning optical microscopy (NSOM) or scanning near-field optical microscopy (SNOM) is a microscopy technique for nanostructure investigation...

Originally, it was an optical instrument using lenses, curved mirrors, or a combination of both to observe distant objects – an optical telescope. Nowadays...

The European Optical Society (EOS) is a European organisation for the development of the science of optics, founded in 1991. Membership is open to national...

the Lagrange invariant is a measure of the light propagating through an optical system. It is defined by H = n u ¯ y − n u y ¯ {\displaystyle H=n{\overline...

physics, a plasmon is a quantum of plasma oscillation. Just as light (an optical oscillation) consists of photons, the plasma oscillation consists of plasmons...

type of reticles and are made out of metal wire or thread, mounted in an optically appropriate position in the telescopic sight's tube. Etched reticles are...

Common types of waveguides include acoustic waveguides which direct sound, optical waveguides which direct light, and radio-frequency waveguides which direct...

1st Space Operations Squadron at Schriever AFB, Colorado. SYERS 2 is an optical and infrared camera with a 40 cm aperture and a field of view larger than...

number panel of the banknote is printed in embedded fluorescent fibers and optically variable ink. Since 2005 additional security features like machine-readable...

metal–oxide–semiconductor) technology. A more recent alternative approach is optical touch technology, based on image sensor technology. In computing, multi-touch...

size of the pupil, and thus the amount of light reaching the retina. In optical terms, the pupil is the eye's aperture, while the iris is the diaphragm...

production of paintings and other artworks, especially those that involved optical illusions and other multiple images. The technique consists of the artist...

biointegration. Other methods, such as magnetic deformable membranes and optically coherent transcranial magnetic stimulation of the human retina are still...

the properties, applications, and synthesis of new materials related to optical, magnetic and electronic devices. It is one of the three journals created...

pattern ^ WST - windowed security thread ^ OVM - optically variable magnetic ^ replacing optically variable device (OVD) patch ^ DST - dynamic security...

synthesis reaction. Since they affect chirality, they produce optically active products from optically inactive or mixed starting materials. This type of preferential...

In optical disc manufacturing, replication is the process of producing discs via methods that do not involve "burning" blank CD, DVD or other discs; the...

Optical Express is a provider of ophthalmology services including laser eye surgery, cataract surgery and lens replacement surgery in Europe. Optical...

Optical lift is an optical analogue of aerodynamic lift, in which a cambered refractive object with differently shaped top and bottom surfaces experiences...

Chung, Victor Jun Dong and Xaoming Shi, Electronic Voting Method for Optically Scanned Ballot, U.S. Patent 7,077,313, Jul. 18, 2006. Steve Bolton, Tim...

structural health monitoring and biomedical applications, where optically generated and optical measurements of ultrasound gives a non-contact method of imaging...

Sterlite Technologies Limited (formerly Sterlite Tech) is an Indian optical and digital technology company, headquartered in Pune. It is listed on Bombay...

Atomic, molecular, and optical physics (AMO) is the study of matter–matter and light–matter interactions, at the scale of one or a few atoms and energy...

mineral optical and chemical properties. The figures are produced by optical interference when diverging light rays travel through an optically non-isotropic...

optics, an optical phase space is a phase space in which all quantum states of an optical system are described. Each point in the optical phase space...

optical splitters in series (cascaded). Unlike traditional point-to-point fiber connections, PON systems distribute optical signals from an optical line...

visual system is associated with the eye and functionally divided into the optical system (including cornea and lens) and the neural system (including the...

dynamically created by light interference on optically resonant materials and rely on population inversion and/or optical coherence properties of the material...

performs basic research in optical metrology, optical communication, new optical materials, plasmonics and nanophotonics and optical applications in biology...

line" and can be used to determine a mineral's refractive index. It is optically active, meaning it can rotate the plane of polarization of light passing...

In an optical system (generally a lens), the entrance pupil is the optical image of the physical aperture, as 'seen' through the optical elements in front...

in or around buildings, and dentist's mirrors. Mirrors are also used in optical and scientific apparatus such as telescopes, lasers, cameras, periscopes...

Instruments is a specialist in optical instrumentation. The company, Nippon Kōgaku Kōgyō Kabushikigaisha (日本光学工業株式会社 "Japan Optical Industries Co., Ltd."), was...

original variant Samsung flagship phone to feature an optically stabilized rear camera. It allows optically stabilized 4K (2160p) video recording at 30 fps...

the Moon around its equilibrium position. Geometrical libration includes optical, parallax and diurnal types while Physical libration includes forced and...

range (FSR) is the spacing in optical frequency or wavelength between two successive reflected or transmitted optical intensity maxima or minima of an...

Remote Sensing Satellite-1 (PRSS-1), is a Pakistani earth observation optical satellite launched from China's Jiuquan Satellite Centre on 9 July 2018...

included with most operating systems). Optical networking is a sophisticated infrastructure that utilises optical fibre to transmit data over long distances...

The Ontario Research and Innovation Optical Network (ORION) is a high-speed optical research and education network in Ontario, Canada. It connects virtually...

Optical mapping is a technique for constructing ordered, genome-wide, high-resolution restriction maps from single, stained molecules of DNA, called "optical...

focuses on optical super-resolution, biomedical optics, nanophotonics, and optical sensing, addressing both theoretical and applied aspects of optical signal...

One family of standards known as Ethernet passive optical network (EPON) uses a passive optical network. With wide, metro, and local area networks using...

and particle physics; condensed matter physics; atomic, molecular, and optical physics; astrophysics; and applied physics. Some physics departments also...

includes research on Optical communications repeaters, which improve optical signal quality. Photonic integrated circuits (PICs) are optically active integrated...

spherical lens has the same curvature in every direction perpendicular to the optical axis. Spherical lenses are adequate correction when a person has no astigmatism...

Way's foreground dust clouds, and as a result is barely detectable at optical wavelengths. It had been suggested soon after its discovery that Maffei...

the first applications, NIRS was used only as an add-on unit to other optical devices that used other wavelengths such as ultraviolet (UV), visible (Vis)...

sports visors, ski/snowboard goggles, watches, apparel, backpacks, shoes, optical frames, and other accessories. Most items are designed in house at their...

seen, showing a polarization variation trend. With a diffuse patch of optical emission located at the intersection of the jet where a radio lobe is connected...

Peter Barlow (1776–1862), is an optical tube with diverging lens elements that, used in series with other optics in an optical system, increase the effective...

quickly and efficiently identify graphene flakes on the substrate using optical microscopy, which provided a small but visible contrast between the graphene...

Kuroda, I.; Nakajima, S.; Sasaki, T.; Nakai, S. (1995), "New nonlinear optical crystal: Cesium lithium borate", Appl. Phys. Lett., 67 (13): 1818, Bibcode:1995ApPhL...

transmissions, and OPTAR fire-control systems. The OPTAR incorporated an electro-optical rangefinder and was mounted on the right side of the turret, and was used...

also known as optical MEMS, are integrations of mechanical, optical, and electrical systems that involve sensing or manipulating optical signals at a very...

typically designed to remotely loiter by a human operator using electro-optical targeting sensors or camera suite and data-link until a target is designated...

are large enough to be visible with the naked eye, without magnifying optical instruments. It is the opposite of microscopic. When applied to physical...

inspection, and manually or automatically such as an automated optical inspection. Non-contact optical measurement and photogrammetry have become common NDT methods...

Optica Fellow is a membership designation of Optica (formerly known as The Optical Society (OSA)) that denotes distinguished scientific accomplishment. The...

the eyes from foreign bodies and bright lights (the latter known as the optical reflex). The blink reflex also occurs when sounds greater than 40–60 dB...

a result, many people came to think of all mark-sense forms (whether optically sensed or not) as scantron forms. In 1983, Westinghouse Learning Corporation...

signal as output. This is typically done within a camera. The electro-optical transfer function (EOTF) is the transfer function having the picture or...

Programmable photonics is a subfield of photonics and optical computing that studies the development of photonic integrated circuits (PICs) for computation...

classes:[citation needed] Optically thin: where the gas does not re-absorb radiation emitted from other parts of the gas Optically thick: where the radiation...

of the scene versus diffraction), and on the performance of the lens. Optically, as a lens is stopped down, the defocus blur at the Depth of Field (DOF)...

Local Optical Committees are statutory bodies established within the British National Health Service to represent the interests of community optometrists...

isopropyl carbinol), contain stereocenters, and are therefore chiral and optically active. The most important amyl alcohol is isoamyl alcohol, the chief...

tool is the petrographic microscope. The detailed analysis of minerals by optical mineralogy in thin section and the micro-texture and structure are critical...

diameter of the optical ablation zone measured in millimeters, divided by three. For example, to change refraction by 4 diopters with an optical zone of 3 mm...

2014. Campbell, Iain Donald (1967). An electron spin resonance study of optically excited states. st-andrews.ac.uk (PhD thesis). University of St. Andrews...

integrated waveguide optical power distribution device, similar to a coaxial cable transmission system. The optical network system uses an optical signal coupled...

Hector Alexander de Grousilliers. World War II-era rangefinders worked optically with two telescopes focused on the same target but a distance apart along...

An exchange of rubber for optical glass was proposed by Britain and Germany during the First World War. Optical glass was vital to the warfare of this...

an optical fibre or a change of the electrical voltage on a copper wire) passes through the medium, to the speed of light in vacuum. For optical signals...

approach must be applied. Examples are arbitrarily aligned, optically uniaxial samples, or optically biaxial samples. There are typically two different ways...

In stereochemistry, mutarotation is the change in optical rotation of a chiral material in a solution due to a change in proportion of the two constituent...

In 1942, the company was renamed Takachiho Optical Industries, and in 1949 it was renamed Olympus Optical Co., Ltd. In 2003, the company adopted its current...

In computer hardware, a caddy is a container used to protect an optical media disc from damage when handling. Its functionality is similar to that of...

A catadioptric optical system is one where refraction and reflection are combined in an optical system, usually via lenses (dioptrics) and curved mirrors...

is a variant of the Michelson interferometer principally used to test optical components. It was introduced in 1918 by Frank Twyman and Arthur Green...

The Gazette. It was released on July 21, 2010 in three editions; the "Optical Impression" edition, "Auditory Impression" edition, and "Kuroshitsuji II:...

Through-Focus Scanning Optical Microscopy (TSOM) is an imaging method that produces nanometer-scale three-dimensional measurement sensitivity using a...

originally featured in the 1943 German version ... The shots were often optically flopped to appear new ... Side by side frame comparison of the engine...

usefulness as a practical solid state laser source". Nd:YAG lasers are optically pumped using a flashtube or laser diodes. These are one of the most common...

Galina Khitrova (1959 – June 4, 2016) was a Russian-American physicist and optical scientist known for her research on cavity quantum electrodynamics, excitons...

reflectors made of metal are used to reflect radio waves from radar sets. Optical corner reflectors, called corner cubes or cube corners, made of three-sided...

The focal length of an optical system is a measure of how strongly the system converges or diverges light; it has units of length, and for an idealized...

only optically thick clouds. However, the nature of anvil clouds is that they are largely made up of ice, and are therefore relatively optically thin...

including optically stimulated luminescence (OSL), cathodoluminescence (CL), and thermoluminescence (TL). Thermoluminescence and optically stimulated...

telecommunications and optical sensors to nanophotonics and optical materials, including the introduction of the first optical fibre drawing tower in...

When optical fibers are exposed to ionizing radiation such as energetic electrons, protons, neutrons, X-rays, Ƴ-radiation, etc., they undergo 'damage'...

moderately long distances (tens of kilometres), and can be interfaced with optically isolated links. There are a variety of such systems, but one based on...

of the Aragatsotn Province of Armenia. Orgov is home to the Orgov Radio-Optical Telescope and remains of a Bronze Age fort. "Aragatsotn (Armenia): Towns...

System (MAAWS) FGM-148 Javelin Anti-Tank missile BGM-71 Tube Launched, Optically Tracked, Wire Guided (TOW) Missile Weapon System FIM-92 Stinger anti-aircraft...

Optical DownConverter (ODC) is an example of a non-linear optical process, in which two beams of light of different frequencies ω 1 {\displaystyle \omega...

of media. In practice, it has been most widely used for DVDs and newer optical disc formats, supplanting ISO 9660. Due to its design, it is very well...

Kabushiki-gaisha Tamuron) is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters is...

spectroscopy (ICP-AES), also referred to as inductively coupled plasma optical emission spectroscopy (ICP-OES), is an analytical technique used for the...