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BAE Systems Sensor Solutions - Fairchild - Thermal Imaging Solutions 4/24 LB
CRI Dictionary Terms

sealed-off
Describing a laser in which the gas is permanently sealed within the tube.
3D laser triangulation
3D Laser Triangulation - A technology that allows sensors to probe the surroundings. Laser triangulation systems have an...
long-pass filter
A long-pass filter is an optical filter that allows longer wavelengths of light to pass through while blocking or...
retroreflector
A retroreflector is an optical device or structure that reflects incident light or electromagnetic waves back to their...
hydrophobic
Hydrophobic is a term used to describe substances or materials that repel or do not readily interact with water. The word...
inertial fusion energy
Inertial fusion energy (IFE) refers to a proposed method of generating electricity by harnessing the energy released from...
runner cut
A term describing a type of scratch.
colorimeter
A colorimeter is a device used to measure and quantify the color characteristics of an object or a light source. It provides...
magnetic vector
A term denoting the magnitude and direction of the magnetic field associated with an electromagnetic wave when describing...
hysteresis
This term literally means "to lag behind.'' It is quite often used to describe the residual effect that remains after...
laser active elements
Laser active elements typically refers to the substances or materials within a laser system that play a critical role in the...
Johnson's curve
The graph of a curve describing the spectral irradiance of extraterrestrial sunlight.
magnon
A magnon is a quasiparticle representing a quantized spin wave in a magnetic material. In other words, it is a collective...
data cube
A multidimensional array of values that is commonly used in programming to describe a time series of image data. Each...
telemeter
1. The term used to describe any of the many instruments used to remotely record physical dimensions, such as strain,...
custom lapping and polishing services
Custom lapping and polishing services involve specialized processes used to improve the surface finish and dimensional...
hyperspectral resolution
Hyperspectral resolution refers to the level of detail or granularity in the spectral information captured by a...
nanoimprint lithography
Nanoimprint lithography (NIL) is a nanolithography technique used for fabricating nanoscale patterns on a substrate. It is a...
Lorentz oscillator model
The Lorentz oscillator model is a theoretical model used in physics to describe the response of a charged particle (such as...
piezoelectric motion systems
Piezoelectric motion systems are mechanical systems that utilize piezoelectric materials to generate controlled motion or...
angular spectrum approach
The angular spectrum approach is a mathematical and computational technique used in the field of optics to analyze and...
sputtering target
A sputtering target is a solid material used in the process of physical vapor deposition (PVD), specifically sputtering....
self-phase modulation
Self-phase modulation (SPM) is a nonlinear optical phenomenon that occurs when an intense laser beam passes through a...
laser damage threshold
The laser damage threshold refers to the maximum level of laser intensity that a material can withstand without experiencing...
Faraday configuration
Describes incident radiation propagating parallel to an externally applied magnetic field in magneto-optical experimentation.
microRNA
MicroRNAs (miRNAs) are a class of small, single-stranded RNA molecules, typically consisting of about 19 to 24 nucleotides,...
point spread function
The point spread function (PSF) is a fundamental concept in imaging that describes the response of an imaging system to a...
Compton scattering
The phenomenon observed by A.H. Compton in 1923 -- that some scattered radiation possesses a longer wavelength and...
short finish
A term that describes an incomplete polish.
light field
The term light field refers to the spatial distribution of light rays traveling in all directions through a given space. It...
chip-on-board lights
Chip-on-board (COB) lights refer to a type of LED lighting technology where multiple LED chips are directly mounted onto a...
mode
1. The characteristic of how light propagates through a waveguide that can be designated by a radiation pattern in a plane...
matt
A term used to describe a nondirectionally diffusing surface that, when illuminated, appears equally bright from all angles....
fiber Bragg grating
A fiber Bragg grating (FBG) is a type of optical filter that is inscribed or "written" into the core of an optical fiber. It...
Peltier cooler
A Peltier cooler, also known as a thermoelectric cooler (TEC) or thermoelectric module, is a solid-state device that uses...
prismatic
Describing a prism, or the effects produced by prisms.
aplanatic surface
An aplanatic surface is an optical surface that is specifically designed or shaped to minimize spherical aberration and...
custom optic
A custom optic refers to an optical component that is designed, manufactured, and tailored to meet specific requirements or...
optics of material
The area of optics that deals with the interaction of light with a given material. The optical properties of material are...
angstrom
An angstrom, symbolized by the Ångström or Å, is a unit of length used to express atomic and molecular...
hyperspectral imaging camera
A hyperspectral imaging camera is a sophisticated imaging device capable of capturing and processing data across a wide...
cladding mode
A mode that is confined by virtue of a lower-index medium surrounding the cladding. Cladding modes, in the terminology of...
electron temperature
Approximation of a system of thermal equilibrium formed by the distribution of the kinetic energies of electrons in a gas...
interferometric modulator display
Interferometric modulator display (IMOD) is a type of display technology used in electronic devices, known for its energy...
critical angle
The least angle of incidence at which total internal reflection takes place. The angle of incidence in a denser medium, at...
optical power spectrum
Also known as the Wiener spectrum or the noise power spectrum, the optical power spectrum is a fundamental quantity in...
cross dispersion
Recombination of only the light that is correctly dispersed by the first stage of a polychromator through its wide...
multispectral imaging
Multispectral imaging is a technique that involves capturing and analyzing images at multiple discrete spectral bands within...
embedded vision
Embedded vision refers to the integration of computer vision technologies into various embedded systems, devices, or...
CoaXPress
CoaXPress (CoaXPress or CXP) is a standardized digital interface and communication protocol used primarily in machine vision...
microdisplay
A microdisplay is a miniature electronic display technology that is designed to project visual information onto a small...
Laplacian edge enhancement
Edge enhancement technique that accentuates all edge details in an image without discriminating as to spatial orientation.
polarization
Polarization refers to the orientation of oscillations in a transverse wave, such as light waves, radio waves, or other...
Planck's (radiation) law
The formula describing the spectral radiant emittance of a perfect blackbody as a function of its temperature and the...
critical scattering
Intense scattering in the region of the liquid-gas critical point. At this point the gas will strongly scatter all light to...
coherent fiber bundle
A coherent fiber bundle (CFB), also known as a coherent fiber optic bundle, is an assembly of multiple optical fibers...
low
Term used to describe an optical surface that contacts the test glass only at its edges.
absorption peak
An absorption peak refers to a sharp increase or spike in the absorption of electromagnetic radiation at a particular...
waveguide dispersion
For each mode in an optical waveguide, the term used to describe the process by which an electromagnetic signal is distorted...
automated optical inspection
Automated optical inspection (AOI) is a technology used in manufacturing processes, particularly in electronics, to...
optics
Optics is the branch of physics that studies the behavior and properties of light, including its interactions with matter...
convex
Convex is an adjective used to describe a surface or shape that curves outward, bulges, or has a rounded and outwardly...
neuromorphic
Neuromorphic refers to the design and development of computing systems or devices that are inspired by the structure and...
semifinished
A term used to describe a spectacle lens or blank with one surface totally finished.
infrared detector
An infrared detector is a device that is used to detect and measure infrared radiation, which lies beyond the visible...
Ferry-Porter law
The law stating that the critical fusion frequency is approximately proportional to the logarithm of the luminance and the...
light filament
Phenomenon caused by an ultrashort and ultra-intense light pulse propagating in a Kerr medium, such as air or water. When...
resolving power
A measure of an optical system's ability to produce an image which separates two points or parallel lines on the object. See...
Rockwell hardness
Rockwell hardness (Rc) refers to a method for measuring the hardness of a material, primarily metals, using an indentation...
substrate
A substrate refers to a material or surface upon which another material or process is applied or deposited. In various...
roughing
A term used to describe a very coarse grinding process.
optical Fourier transform
The optical Fourier transform is a mathematical operation applied to optical signals that involves transforming a spatial...
Seidel aberrations
Seidel aberrations refer to a set of monochromatic aberrations in optical systems, named after the German mathematician and...
fog
1. A term used to describe the clouded appearance of an incompletely polished surface that scatters light. 2. The...
anisotropic
Anisotropic is a term used to describe a material or substance that exhibits different properties or behaviors in different...
algorithm
A precisely defined series of steps that describes how a computer performs a task.
Ritchey-Common test
An interferometric method for describing the surface shape of large coated or uncoated optical flats. The procedure uses a...
infrared camera
An infrared camera, also known as a thermal imaging camera or IR camera, is a device that captures and visualizes the...
beat length
A characteristic of optical fiber used to calculate the fiber's ability to maintain polarization. The beat length describes...
photon tunneling microscope
An instrument in which visible light beyond the critical angle from a metallurgical microscope is focused on a reference...
epitaxial equipment
Epitaxial equipment refers to a set of specialized tools and systems used in the process of epitaxy, which is the growth of...
resonance
Resonance can be defined in various contexts, including physics, chemistry, and music. Here are definitions for resonance in...
laser peening
Laser peening is a surface enhancement technique used to improve the mechanical properties of materials, particularly...
optical filter
An optical filter is a device that selectively transmits or blocks specific wavelengths, or colors, of light. Optical...
optical fiber optic switches
Optical fiber optic switches are devices used in optical fiber communication systems to selectively route optical signals...
telescope lense
A telescope lens is a primary optical component of a telescope system that gathers and focuses light to form an image. It is...
eccentric mounting
A lens mounting with eccentric rings that may be rotated to shift the axis of the lens to a prescribed position.
soft coating
A term describing an antireflection coating that may be applied to optics that cannot tolerate the high temperatures usually...
achromat
An achromat, in the context of optics, refers to a type of lens or lens system designed to reduce chromatic aberration....
network interface card
A network interface card (NIC), also known as a network adapter or LAN adapter, is a hardware component that allows...
single-molecule spectroscopy
An advanced technique that allows the detection of one molecule within a crystal or a cell through optical excitation....
Ostwald system
The system of color classification and description produced by Wilhelm Ostwald.
metalens
A metalens, short for "metasurface lens," is a type of optical lens that uses nanostructured materials to manipulate light...
graded index
Descriptive of an optical fiber having a core refractive index that decreases almost parabolically and radially outward...
time-to-amplitude converter
A time-to-amplitude converter (TAC) is an electronic circuit that converts a time interval between two events into an...
metameric colors
Pairs of color stimuli that exhibit metamerism as described by colorimetry. Also known as metameters.
optical design software
Optical design software refers to specialized computer programs used by optical engineers, physicists, and designers to...
diamond-turned optic
Diamond turning refers to a precision machining process used to produce complex optical components, particularly lenses and...
Mach-Zehnder interferometer
A Mach-Zehnder interferometer is an optical device used to measure the phase difference between two collimated beams of...
scribing
The process of perforating a silicon or ceramic substrate with a series of tiny holes along which it will break. Nd:YAG or...
deliquescent
Description of a material, such as a water-soluble salt, that will continue absorbing moisture from the surrounding...
Geometrical optics
The area of optics in which the propagation of light is described by geometrical lines (or rays) governed by Fermat's...
density matrix formulation
The exact mathematical description of the interactions of matter and intense electromagnetic fields, such as those that...
nonlinear optical materials
Nonlinear optical materials are substances that exhibit optical properties that are not linearly proportional to the...
optical cements and adhesive
Optical cements and adhesives are specialized materials used in the assembly and bonding of optical components in optical...
ultraviolet reflectance
Ultraviolet reflectance refers to the ability of a material or surface to reflect UV light. Ultraviolet light is...
critical flicker frequency
Relative to a light source, the frequency at which the source appears to fluctuate in light intensity half the time and...
Saha equation
Formula that describes the thermal equilibrium of gas electrons and ions as a direct function of variations in temperature.
delta error
The term delta error (delta-E) generally refers to the difference or change in error between two values or states. The word...
Lawson criterion
Defines the minimum operational standards for a self-sustaining fusion reactor as equivalence between energy released per...
modulation transfer function analysis/measurement equipment
MTF analysis/measurement equipment refers to instruments and tools used to measure and analyze the modulation transfer...
continuous wave
Continuous wave (CW) refers to a type of signal or transmission where the signal is constant and does not vary with time. In...
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...
spectral flow cytometry
Spectral flow cytometry is an advanced flow cytometry technique that expands the capabilities of traditional flow cytometry...
multi-axis alignment
Multi-axis alignment refers to the process of aligning or adjusting components or systems in multiple spatial dimensions or...
Gaussian beam optics
The area of optics that deals with the propagation of Gaussian laser beams in free space, or any general medium - i.e....
phonon
A phonon is a quantum of vibrational energy associated with the periodic motion of atoms or molecules in a crystalline...
luminous flux
Descriptive of the radiant power of visible light modified by the eye response. It is the measure of the flow of visible...
subscriber loop
That portion of the telecommunications network that runs from a local central telephone to the subscriber premises.
high contrast
A term used to describe a photograph, film or television picture where the values for black and white areas are at or near...
ophthalmology
Ophthalmology is a branch of medicine that focuses on the anatomy, physiology, and diseases of the eyes and visual system....
Taylor criterion
States that in interferometers in which the separation of the maxima is equal to the half-value width, a slight drop in...
oleophobic
Oleophobic is a term used to describe substances or materials that repel or resist oils. The word oleophobic comes from the...
backstreaming
The term used in reference to vacuum systems using oil and diffusion pumps, describes the migration of pump fluids and their...
half silvered
Describing a surface that is coated with a film of metal of such thickness that it transmits about one-half of the incident...
photomask
A photomask, also known simply as a mask or reticle, is a key component in the photolithography process used in...
vibrational transition
A vibrational transition refers to a change in the vibrational energy of a molecule. Molecules consist of atoms that are...
surround
A term that describes both the color and intensity of the immediate environment of the object or image being viewed.
fiber laser
A fiber laser is a type of laser in which the active gain medium is an optical fiber doped with rare-earth ions such as...
numerical aperture
The sine of the vertex angle of the largest cone of meridional rays that can enter or leave an optical system or element,...
modulation transfer function
Also called sine wave response and contrast transfer function. The modulation transfer function is the ratio of the...
diamond turning
Diamond turning, also known as diamond machining or diamond cutting, is a precision machining process used to produce...
scalar diffraction theory
Scalar diffraction theory is a simplified approach used to describe the propagation of electromagnetic waves, particularly...
fixed focus
Describes devices that are not provided with a means of focusing.
population inversion
The condition in which there are more atomic systems in the upper of two energy levels than in the lower, so stimulated...
sharp
A term used to describe a convex surface having too short a radius of curvature. To correct this condition, material is cut...
fiber optic cable assembly
A fiber optic cable assembly refers to a complete unit consisting of optical fibers, connectors, protective jackets, and...
optical character recognition
Optical character recognition (OCR) is a technology that is used to convert printed or handwritten text into...
raw glass
A term that describes any state of glass before its manufacture as an element.
Talbot's law
The law stating that the brightness of an object that is examined through a slotted disc, rotating over a critical...
cribbing
The breaking of the excess glass from the specified shape.
entrance slit
The entrance slit, also known simply as the slit, is an essential component in optical instruments such as spectrometers and...
linear optics
Linear optics refers to the study and manipulation of light in a linear and deterministic manner, where the response of...
CIE observer
Hypothetical observer having standard color vision as described by standard color-matching properties.
quantum entanglement
Quantum entanglement is a phenomenon in quantum mechanics where two or more particles become correlated to such an extent...
depth of convergence
A critical image parameter in applications where object position may change dynamically relative to the imager; this is a...
spectral repeatability
Spectral repeatability refers to the consistency and reproducibility of spectral measurements across multiple trials or...
luminous energy
A measure of the time-integrated amount of flux. It has units of lumen-seconds and might be used to describe such things as...
Nyquist criterion
In image acquisition (and sampling theory), the postulate that the pickup sampling frequency must be a minimum of twice as...
roentgen
An obsolete term once used to describe a unit of radiation dosage.
atmospheric optics
The analysis of the properties of radiation, such as light, when acted upon by variations in the atmosphere. Blue and red...
chiral
Description of a particle that cannot be superimposed on its mirror image.
metabolite
A metabolite is any small molecule that is a product of metabolism, the chemical processes that occur within living...
magnitude
In astronomy, the relative brightness of a celestial body. Originally a scale from 1 to 6, where 1 represented the brightest...
image intensifier
An image intensifier, also known as an image intensification tube or image intensification device, is a specialized...
optical assembly
An optical assembly refers to a collection of optical components that are carefully arranged and aligned to perform a...
cathode stream
Also known as cathode rays. Formerly, this term described a stream of electrons emitted from the cathode of a gas-discharge...
Förster resonance energy transfer
Förster resonance energy transfer (FRET) is a mechanism describing the transfer of energy between two closely spaced...
MEMS fiber optic switch
A MEMS fiber optic switch is a microelectromechanical system (MEMS) device designed to selectively route optical signals...
sapphire window
A sapphire window refers to a transparent optical component made from sapphire crystal. Sapphire is a single-crystal form of...
Munsell notation
Alphanumerical description of color according to Munsell hue, value and chroma.
emission of sky
Thermal emission caused by the unity in absorption bands that must be discriminated when calculating radiation intensity of...
machine vision system
A machine vision system is an integrated combination of hardware and software components designed to capture, process, and...
block
A supporting member used to hold optical parts during grinding and polishing. It also describes the assemblage of optical...
germicidal UV
Germicidal ultraviolet (GUV) refers to a specific range of UV radiation that has disinfectant properties capable of killing...
macula lutea
The small central portion of the human retina that is responsible for providing the clearest, and most distinct aspects of...
etalon
An etalon is an optical device that consists of two parallel reflecting surfaces separated by a precise and known distance....
astronomical mirror
An astronomical mirror, also known as a telescope mirror or primary mirror, is a key component of a reflecting telescope. It...
refractive index profile
The description of the refractive index along a fiber diameter.
cathode-ray output
A term used in data processing to describe a cathode-ray tube that displays graphic or character data.
excimer laser
An excimer laser is a type of ultraviolet laser that emits short pulses of light in the ultraviolet spectrum. The term...
CCD image sensor
A CCD image sensor, or charge-coupled device image sensor, is a type of electronic device used to convert optical images...
monocular
1. Viewed with one eye. 2. Describing an image as viewed from a single angle.
Kerr soliton
A Kerr soliton refers to a specific type of soliton, a self-reinforcing wave packet, that arises in nonlinear optical...
critical fusion frequency
The fusion frequency of flicker that is needed just to produce complete fusion and to assure the visual sensation of...
parcentered
Description of an optical system in which all the elements are aligned on the same axis.
saddle
A term used to describe a saddle-shaped -- i.e., convex along one axis, concave along the other -- polished surface,...
spheric lens
A spheric lens, also known as a spherical lens, is a type of optical lens with at least one surface that is part of a...
laser sintering
Laser sintering is an additive manufacturing (AM) or 3D printing technology that involves using a laser to selectively fuse...
hybrid circuit
Any integrated circuit that also makes use of one or more discrete components; frequently used to describe circuits that...
hyperspectral imaging
Hyperspectral imaging is an advanced imaging technique that captures and processes information from across the...
figure tolerance
The allowable departure from the given figure or geometrical form. It may be described in terms of fringes or wavelengths.
Rayleigh criterion of resolving power
When a lens system with a circular aperture is free of aberrations, the image of a point object will appear as a disc of...
ophthalmic instruments
A family of specialized instruments used by ophthalmologists and optometrists to study a patient's eyes and prescribe...
color rendering index
A CIE index describing the changes in color of standard test objects when the illumination is changed from a standard to a...
superresolution
Superresolution refers to the enhancement or improvement of the spatial resolution beyond the conventional limits imposed by...
sapphire optical fiber
Sapphire optical fiber is a type of optical fiber made from single-crystal sapphire, which is a form of aluminum oxide...
concave
Concave is an adjective used to describe a surface or shape that curves inward or has a hollow or recessed appearance. In...
discrimination
The degree to which a vision system is capable of sensing differences in light intensity between two regions.
magneto-optics
Magneto-optics refers to the study and manipulation of the interaction between magnetic fields and light (electromagnetic...
optical extent
Mathematically defined as the product of etendue (or throughput) and the square of the refractive index, the optical extent...
optical manufacturing tools and machinery
Optical manufacturing tools and machinery encompass a wide range of equipment, instruments, and systems used in the...
fusion ignition
Fusion ignition refers to the point in a controlled nuclear fusion reaction where the energy released by the fusion...
cross roller slide
A positioning slide mechanism with two rows of alternately crisscrossed cylindrical rollers.
uncut
A term describing lenses with both surfaces finished but not yet cut to any form.
hydrophilic
Hydrophilic is a term used to describe substances or materials that have an affinity for water. The word hydrophilic comes...
Rayleigh scattering
Rayleigh scattering is a phenomenon that occurs when light waves interact with particles or molecules that are much smaller...
opaque
A term describing a substance that is impervious to light; the characteristic of a substance that has no luminous...
fiber optics
The use of thin flexible glass or plastic fibers as wave guides — or "light pipes" — to channel light from one...
National Television Systems Committee
The code used to describe the United States system of color telecasting.
Lummer-Gehrcke plate
A high-resolution spectroscopic device commonly used in the early 20th century as a component of double-beam...
time domain
The time domain is a concept used in signal processing and analysis to describe signals in terms of their behavior over...
blackbody source
A blackbody source, often simply referred to as a blackbody, is a theoretical or practical physical object that absorbs all...
photoelastic constant
A formulaic description of the linear change of the reciprocal optical dielectric tensor with either stress or strain.
die bonding
Die bonding is a critical process in semiconductor manufacturing and microelectronics assembly, where a semiconductor die or...
Rydberg atom
The term "Rydberg atom" refers to an atom in a highly excited state where one or more of its electrons are in a Rydberg...
anisotropy
Anisotropy refers to the property of exhibiting different values or characteristics when measured in different directions....
attenuation
Attenuation refers to the gradual loss or reduction of intensity, force, or magnitude of a particular property as it...
aspheric lens
An aspheric lens is a type of lens whose surface profiles deviate from the traditional spherical shape. Unlike spherical...
black hole
A cosmic phenomenon in which the mass and density of a star pass a critical point so that the escape velocity matches the...
minimum separable
The least space between two parallel lines that can be discriminated as a gap to the human eye. It is measured in terms of...
fluence
Fluence is a term used in various scientific and technical disciplines to describe the amount of something per unit area....
color
The attribute of visual experience that can be described as having quantitatively specifiable dimensions of hue, saturation,...
metrology
Metrology is the science and practice of measurement. It encompasses the theoretical and practical aspects of measurement,...
machine vision lighting
Machine vision lighting refers to the use of specific lighting techniques and equipment in the field of machine vision,...
machine vision lens
A machine vision lens is a specialized optical lens designed for use in machine vision systems, which are used for automated...
quantum optics
The area of optics in which quantum theory is used to describe light in discrete units or "quanta" of energy known as...
lepton
The generic term describing the class of light particles having no strong interactions.
attenuated total reflectance spectroscopy
Attenuated total reflectance (ATR) spectroscopy is a technique used in analytical chemistry to obtain IR spectra of samples....
epitaxial deposition
Epitaxial deposition is a process used in semiconductor manufacturing and materials science to grow a thin crystalline...
optical data storage
The storage of information via optical means, primarily employing a low-power laser to inscribe data on a photosensitive...
N, n
A symbol used to represent the refractive index. It is commonly used with a subscript to represent the wavelength of light.
quantum
The term quantum refers to the fundamental unit or discrete amount of a physical quantity involved in interactions at the...
area scan
Area scan, in the context of imaging and cameras, refers to a method of capturing an entire two-dimensional image in a...
reflective
The term reflective is an adjective that describes the ability of a surface or material to reflect light or other forms of...
critical illumination
Illumination in which the light source is imaged at the object.
beam profiling
Beam profiling is a technique used to characterize and analyze the spatial intensity distribution of a laser beam. It...
phase
In optics and photonics, "phase" refers to a property of electromagnetic waves, such as light, that describes the position...
interlaced
Describing the standard television method of raster scanning in which the image is the product of two fields, each of which...
freeform mirrors
Freeform mirrors refer to reflective optical components that deviate from traditional symmetric or rotationally symmetric...
critical absorption wavelength
That wavelength at which the absorption of a given element or system begins to demonstrate an inconstant value.
crimp sleeve
A crimped metal cylinder that holds the connector to the cable through the cable's strength member.
chromatic aberration
Chromatic aberration is an optical phenomenon that occurs when different wavelengths (colors) of light are refracted by a...
camera chain
The term sometimes used to describe the sequential arrangement of components in a video system -- from transmitter to...
prism chromatic resolving power
The chromatic resolving power of a prism is invariably stated for the case in which parallel rays of light are incident on...
hue
The perceptual term for that aspect of color described by words such as red, yellow or blue. Achromatic colors, such as...
discriminator
A circuit incorporated into counter systems that records only pulses that have amplitudes between two preselected limits.
internet of things
The internet of things (IoT) refers to a network of interconnected physical devices, vehicles, appliances, and other objects...
ultraviolet fiber optics
Ultraviolet (UV) fiber optics refers to optical fibers that are designed and optimized for the transmission of ultraviolet...
second-order nonlinear optical properties
Second-order nonlinear optical properties refer to a class of phenomena exhibited by certain materials in response to...
parasitic oscillation
Oscillation in rod and disc amplifiers that critically limits the achievable energy storage.
pipeline
In image processing and elsewhere, generally an adjective to describe an assembly-line arrangement for performing a task....
total internal reflection fluorescence
Total internal reflection fluorescence (TIRF) microscopy is an advanced fluorescence microscopy technique that leverages the...
identification friend or foe system
A system that transmits and receives identification codes to facilitate the discrimination between enemy and friend in a...
total internal reflection
The reflection that occurs within a substance because the angle of incidence of light striking the boundary surface is in...
fiber optic cleaver
A device used to prepare optical fiber end faces; a scribe line made by the cleaver's blade propagates across the fiber,...
gradient-index profile
The term gradient-index profile refers to a specific type of refractive index distribution within an optical material. In...
instantaneous field of view
Instantaneous field of view (iFOV) is a term commonly used in the context of remote sensing, imaging systems, and optical...
scintillation detector
A scintillation detector is a radiation detection device that utilizes scintillation crystals to detect and measure ionizing...
path-reversal principle
The criterion maintaining that if light follows a specific path through an optical system, it will, if reversed, traverse...
frequency domain
The frequency domain is a concept used in signal processing and analysis to represent signals and data in terms of their...
dipole polarization
Electric polarization characterized by homogeneous polar dielectrics and ascribed to the position of the permanent molecular...
photoresist
Photoresist is a light-sensitive material used in photolithography processes, particularly in the fabrication of...
Arrhenius plot
The plot that expresses a reaction rate vs. the reciprocal of absolute temperature. Often used to describe the thermal...
infrared lens
An infrared lens is an optical component specifically designed and optimized for transmitting, focusing, or manipulating...
critical aperture
In an optical system, the aperture size at which the lens gives its best overall performance.
multiline
Describing a laser that emits simultaneously at more than one wavelength.

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