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optical devices Dictionary Terms

constant deviation
That property of certain optical devices, e.g., a penta prism, that maintains the angular relationship between the entering...
prism coupler
An instrument that measures the angle at which a prism can couple laser light into an optical waveguide; used to determine...
metasurfaces
Metasurfaces are two-dimensional arrays of subwavelength-scale artificial structures, often referred to as meta-atoms or...
photon jet
A photon jet is a narrow, highly collimated beam of light that is formed when light interacts with small dielectric...
meta-optics
Meta-optics, also known as metasurface optics or flat optics, is a branch of optics that involves the design, fabrication,...
octave
In optics, an octave typically refers to a range of frequencies or wavelengths that spans a factor of 2. In other words,...
multi-axis alignment
Multi-axis alignment refers to the process of aligning or adjusting components or systems in multiple spatial dimensions or...
microring resonator
A microring resonator is a compact optical device that utilizes the resonant behavior of light within a small ring-shaped...
Fresnel reflection
Fresnel reflection refers to the reflection of light at the interface between two different media with different refractive...
nanophotonics
Nanophotonics is a branch of science and technology that explores the behavior of light on the nanometer scale, typically at...
bubble chamber
A large tank filled with liquid hydrogen, with a flat window at one end and complex optical devices for observing and...
optical coatings
Optical coatings are thin layers of materials applied to optical components, such as lenses, mirrors, filters, and prisms,...
liquid crystal
Liquid crystals are a state of matter that exhibits properties intermediate between those of conventional liquids and solid...
smart pixel array
An array of active optical devices (modulators, laser diodes and/or detectors), each of whose electrical inputs or outputs...
retroreflection
Retroreflection is a phenomenon in optics where light is reflected back toward its source, typically in a direction nearly...
field of view
The field of view (FOV) refers to the extent of the observable world or the visible area that can be seen at any given...
diffraction efficiency
Diffraction efficiency is a measure of how effectively a diffractive optical element (DOE) or diffraction grating directs...
electron-beam lithography system
An electron-beam lithography (EBL) system is a sophisticated nanofabrication tool used in the semiconductor industry and...
residual absorption and scattering
Loss mechanisms that degrade the performance of all thin-film optical devices by removing radiant flux out of the specular...
integrated photonics
Integrated photonics is a field of study and technology that involves the integration of optical components, such as lasers,...
collimator
An optical instrument consisting of a well- corrected objective lens or mirror with a light source and or object/image (i.e....
magneto-optics
Magneto-optics refers to the study and manipulation of the interaction between magnetic fields and light (electromagnetic...
blaze height
Blaze height typically refers to a parameter in the context of diffraction gratings, which are optical devices consisting of...
optical communications
The transmission and reception of information by optical devices and sensors.
photonic crystals
Photonic crystals are artificial structures or materials designed to manipulate and control the flow of light in a manner...
linear optics
Linear optics refers to the study and manipulation of light in a linear and deterministic manner, where the response of...
plasmon ion-assisted deposition
Plasmon ion-assisted deposition (PIAD) is a technique used in thin-film deposition processes, particularly in the production...
quantum well
A quantum well is a structure in quantum mechanics that confines particles, such as electrons or holes, in one spatial...
image jump
In optics, the term image jump refers to a displacement or shift in the apparent position of an image when a change occurs...
phase matching
Phase matching is a crucial concept in the field of optics, particularly in nonlinear optics and the generation of coherent...
antireflection coating
An antireflection coating (AR coating) is a thin film or coating applied to optical surfaces, such as lenses or windows, to...
second-order nonlinear optical properties
Second-order nonlinear optical properties refer to a class of phenomena exhibited by certain materials in response to...
birefringence
Birefringence is an optical property of certain materials that causes them to exhibit different refractive indices for light...
photonic cavity
A photonic cavity, also known as an optical cavity, is a structure that confines electromagnetic radiation within a certain...
plasmonics
Plasmonics is a field of science and technology that focuses on the interaction between electromagnetic radiation and free...
Kerr effect
The Kerr effect, named after the physicist John Kerr who first observed it in 1875, is a nonlinear optical phenomenon where...

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