Commonly performed in spectroscopy, the optical null process is a method for radiation detection whereby physical detectors are used to rapidly interchange the intensity between a reference beam and an unknown beam. This variation between the...

Optics is the branch of physics that studies the behavior and properties of light, including its interactions with matter...

Digital signal processing (DSP) refers to the manipulation and analysis of signals, which are representations of physical...

A quantum cascade laser (QCL) is a type of semiconductor laser that operates based on the principles of quantum mechanics....

A filtering device that detects what is new in a scene of interest. Often compared to that of a temporal high pass filter,...

An infrared light source is a device that emits light in the infrared spectrum, which lies beyond the visible spectrum of...

A moving group of fluid-suspended biological species directed through separate channels by which the population is isolated....

Gas detection measurement technique that uses a built-in capacitative microphone to calculate the amount of absorbed laser...

A measurement method for reflectance by gas ionization in which light passes through a vapor before and after reflection....

A laser warning and countermeasure system containing a sensor that indicates the direction of a laser beam, and analytical...

The fundamental tool of microdensitometry, the microdensitometer is an instrument used for the precise measurement of...

The technology that deals with the interaction of organic materials with light and other forms of radiant energy whose...

GaN (gallium nitride) distributed feedback (DFB) lasers refer to a specific type of semiconductor laser based on Gallium...

Raman spectroscopy is a technique used in analytical chemistry and physics to study vibrational, rotational, and other...

A spectroscopic technique used in the detection of free radicals by virtue of their electronic spectra. In this method, an...

The absolute luminance threshold for detection by the two eyes.

An EMCCD (electron-multiplying charge-coupled device) camera is a type of scientific camera specifically designed for...

Spatially offset Raman spectroscopy (SORS) is a technique that extends traditional Raman spectroscopy by incorporating...

A machine vision technique that compares a template of the desired image (the correlation kernel) with the actual camera...

Device that operates by interaction of incident radiation with semiconductor based material in order to produce an...

A fiber optic gyroscope (FOG) is a type of gyroscope that uses the interference of light waves to detect changes in...

An advanced technique that allows the detection of one molecule within a crystal or a cell through optical excitation....

A retroreflector is an optical device or structure that reflects incident light or electromagnetic waves back to their...

An instrument for the detection of the energy distribution of b-particles and secondary electrons.

Ultrasonic refers to sound waves with frequencies higher than the upper audible limit of human hearing, typically above...

Optical coherence tomography (OCT) is an imaging technique used in medical diagnostics and biomedical research to obtain...

A system that uses infrared detectors and related instrumentation to determine when abnormal amounts of infrared radiation,...

An infrared light-emitting diode (IR LED) is a semiconductor device that emits infrared light when an electric current...

An instrument capable of precise measurements of the Earth's gravity. This permits the detection of small changes in local...

The study and photographing of microscope specimens in ultraviolet light; using an optical microscope containing fluorite...

Deep learning is a subset of machine learning that involves the use of artificial neural networks to model and solve complex...

A PIN photodiode is a type of photodetector or semiconductor device used to convert light signals into electrical signals....

A device designed to measure linear or rotary motion by detection of the movement of markings on a transparent medium past a...

Hyperspectral imaging is an advanced imaging technique that captures and processes information from across the...

The detection and measurement of spectral reflectance, spectral transmittance or relative spectral emittance, relative to...

An optical system that rapidly alternates two similar pictures or scenes to permit the detection of small dissimilarities...

A type of laser spectroscopy used to measure short-lived isotopes by observing sudden bursts of fluorescence resulting from...

Label-free refers to a technique or method that does not require the use of additional labels, tags, or markers to detect or...

An enzyme-linked immunosorbent assay (ELISA) is a laboratory technique used to detect and measure the presence of specific...

An accelerometer is a sensor or transducer that measures the rate of change of velocity of an object, or in simpler terms,...

A photodetector employing photoregeneration of carriers in the channel region of an FET structure to provide photodetection...

Recombinase polymerase amplification (RPA) is a molecular biology technique used to rapidly amplify specific DNA or RNA...

A scintillation crystal, also known simply as a scintillator, is a material that emits light when it interacts with ionizing...

Computer vision enables computers to interpret and make decisions based on visual data, such as images and videos. It...

The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The...

Gain-switching is a technique used in lasers to generate short pulses of light by modulating the gain of the laser medium....

A fiber optic spectrometer is a device used for measuring the spectral content of light. It utilizes optical fibers to...

A monitoring technique used to measure the oxygen saturation levels in the brains of patients, commonly in operating room...

A single-photon avalanche diode (SPAD) is a specialized type of photodetector designed to detect extremely weak optical...

An optical scanning device designed to read information printed in the form of bars of different size by detection and...

An infrared detector is a device that is used to detect and measure infrared radiation, which lies beyond the visible...

Spectral flow cytometry is an advanced flow cytometry technique that expands the capabilities of traditional flow cytometry...

Remote inspection refers to the process of inspecting, evaluating, or monitoring assets, equipment, infrastructure, or...

A lab-on-a-chip (LOC) is a miniaturized device that integrates various laboratory functions and capabilities onto a single,...

An InGaAs photodiode refers to a photodetector device that is constructed using a semiconductor material composed of a...

Quantitative phase imaging (QPI) is an advanced imaging technique used in microscopy to measure and analyze the optical...

1. A geometrical arrangement of two or more light beams for use in laser shows, object detection or other applications...

A device used to evaluate the quality of fiber optic splices made in the field by injecting light into the cladding of the...

The variation of the electronically detected signal with respect to the scaled version of the classical optical signal...

Autofluorescence refers to the natural emission of fluorescence exhibited by certain biological structures or molecules when...

The detection and analysis of the relative response of a material to light over the range of wavelengths.

A spectrometric instrument that detects radiation simultaneously in multiple channels, sorts it spectrally from the deep...

A transducer is a device or component that converts one form of energy into another. It is commonly used in various fields,...

A laser device used to establish a location or target usually for detection by an impact source e.g. missiles and guided...

A method of analysis in which a pulsed laser beam is used to heat a particle, producing a plasma, or laser spark. As the...

The detection and analysis of the transmission and reflection properties of objects and photographic images.

Infrared optics refer to optical components and systems designed to manipulate and control infrared (IR) light, which lies...

FMCW lidar stands for frequency-modulated continuous wave lidar. It is a type of lidar (light detection and ranging)...

A scientific CMOS (complementary metal-oxide-semiconductor) camera is a type of digital camera specifically designed for...

Flow cytometry is a powerful technique used in biology and medicine for the quantitative analysis of the physical and...

Cathode radiant sensitivity refers to the ability of a photocathode to convert incident radiant energy, typically in the...

In optical communications, the translation of optical signals into radio signals, lowering their frequency in detection from...

An atomic absorption spectrometer (AAS) is an analytical instrument used to determine the concentration of specific chemical...

A measurement technique used for the rapid quantitative evaluation of surface quality based on the detection and analysis of...

A silicon photodiode is a semiconductor device that converts light into an electrical current. It is a type of photodetector...

Fluorescence lifetime imaging (FLIM) is an advanced imaging technique that provides information about the lifetime of...

In compact disc systems, the two principal frame formats for data storage. Mode 1 devotes 2048 bytes to user data, reserving...

An instrument designed to give precise and rapid detection of changes in tumor growth as well as the location of small...

Hyperspectral resolution refers to the level of detail or granularity in the spectral information captured by a...

In image processing, the location of edges by employing templates that respond to the first or second derivative of...

A point cloud is a set of data points in a three-dimensional coordinate system, where each point represents a specific...

Nanophotonics is a branch of science and technology that explores the behavior of light on the nanometer scale, typically at...

In a charge-coupled device, the detection of charge collected by the transport register rather than by the image-sensing...

MWIR stands for mid-wave infrared, referring to a specific range of wavelengths within the infrared spectrum. Infrared...

A fiber-coupled photoconductive antenna (FCPA) is a type of optoelectronic device that combines a photoconductive antenna...

The detection and measurement of nuclear and x-ray radiation.

Nanoparticle photonic resonator absorption microscopy is a microscopy technique that combines the principles of photonic...

A detector-Dewar assembly typically refers to a combination of a detector and a Dewar flask used in scientific instruments,...

Plasmonics is a field of science and technology that focuses on the interaction between electromagnetic radiation and free...

A mid-infrared camera is a type of imaging device designed to capture images in the mid-infrared (mid-IR) spectral range,...

Surface-enhanced Raman scattering (SERS) is a powerful analytical technique that enhances the Raman scattering signal of...

The collection and detection of x-rays by virtue of their ionizing properties. The ionization may be perceived directly by a...

Optical materials refer to substances or compounds specifically chosen for their optical properties and used in the...

Abbreviated PAI. An imaging modality with a hybrid technique based on the acoustic detection of optical absorption from...

A fiber optic communications system that works on the principles of homodyning or heterodyning. The transmitting laser...

In coherent optical communications systems, a laser used at the receiving end to produce a steady wave that is combined with...

Surface-enhanced Raman spectroscopy (SERS) is an analytical technique that combines the principles of Raman spectroscopy...

A neuromorphic vision sensor is a type of imaging device designed to mimic the structure and functioning of the human visual...

Optofluidics is an interdisciplinary field that combines principles from optics and fluidics to create devices and systems...

A form of infrared CCD that utilizes internal photoemission as a photodetection mechanism.

Multispectral imaging is a technique that involves capturing and analyzing images at multiple discrete spectral bands within...

Machine vision, also known as computer vision or computer sight, refers to the technology that enables machines, typically...

A stationary noise that occurs for visible light photodetection when a steady light source, such as a heterodyne reference...

The process by which laser emission is used in measuring fluid velocity and, more specifically, the detection of air and...

A thermometric instrument used for the detection and measurement of radiant energy. Its essential component is a short...

A CCD image sensor, or charge-coupled device image sensor, is a type of electronic device used to convert optical images...

Optoacoustic, or photoacoustic, refers to a phenomenon and related techniques that involve the generation of acoustic waves...

An acronym for radioactive detection, identification and computation. The term refers to the detection and measurement of...

Volumetric imaging refers to the capture, visualization, and analysis of three-dimensional (3D) information from a volume of...

A chemical detection technique used to measure molecules that have a magnetic dipole moment. The analysis is directed to...

Photonics contract manufacturing refers to the outsourcing of the production of photonics-related components, devices, or...

A nitrogen vacancy (NV) refers to a specific type of defect or impurity in a crystal lattice where a nitrogen atom replaces...

The determination of the temperature of a source by the detection of its incandescent brightness.

A microchannel plate (MCP) is a specialized electron multiplier device used in various applications such as particle...

The ratio of the power of the carrier wave to that of unwanted signal distortions, or noise, before any nonlinear signal...

A lidar (light detection and ranging) technique used in pollution monitoring. Two light beams are emitted simultaneously,...

Spectral domain optical coherence tomography is an imaging technique used in medical diagnostics, particularly in...

Lidar, short for light detection and ranging, is a remote sensing technology that uses laser light to measure distances and...

A scintillation detector is a radiation detection device that utilizes scintillation crystals to detect and measure ionizing...

A photomultiplier tube (PMT) is a highly sensitive vacuum tube that detects and amplifies low levels of light. It is widely...

An APD detector, or avalanche photodiode detector, is a type of photodetector used to detect light or optical signals by...

Scientific complementary metal-oxide semiconductor (sCMOS) refers to a type of image sensor technology specifically designed...

A network interface card (NIC), also known as a network adapter or LAN adapter, is a hardware component that allows...

Laser-induced fluorescence (LIF) is a spectroscopic technique that involves using a laser to excite molecules or atoms,...

A metal-semiconductor-metal (MSM) photodiode is a type of photodetector that consists of metal electrodes on a semiconductor...

A fiber-coupled LED (light-emitting diode) refers to an LED device that is optically coupled to an optical fiber for the...

Linear receive optics typically refers to the optical components and systems used in the reception (detection) of linearly...

Also known as UV-VIS spectrometer, a device that measures the absorbance, reflectance or transmittance of light in the...

A thin-film photoconductive cell that is sensitive to the infrared region. The photosensitive material of the cell is...

A fiber optic sensor is a device that uses optical fibers to detect and measure physical, chemical, biological, or...

A spectroscopic technique that combines the high chemical specificity of Raman scattering and signal sensitivity provided by...

A two-electrode, radiation-sensitive junction formed in a semiconductor material in which the reverse current varies with...

GigE, short for gigabit Ethernet, refers to a standard for high-speed Ethernet communication, capable of transmitting data...

In a fiber optic transmission system, the conversion of received optical pulses directly to an electrical signal.

Silicon carbide (SiC) light-emitting diodes (LEDs) are semiconductor devices that emit light when an electric current is...

Photoplethysmography (PPG) is a non-invasive optical technique used to detect changes in blood volume in tissues. It...

The detection and analysis of naturally formed extraterrestrial electromagnetic radiation within the radio frequency range...

Ophthalmology is a branch of medicine that focuses on the anatomy, physiology, and diseases of the eyes and visual system....

Advanced driver assistance systems (ADAS) refers to a set of safety features and technologies designed to assist drivers in...

In an optical rangefinder, the system of wedges that rotate in opposite directions to aid in the detection of deviation in...

1. In visual perception, the minimum value of stimulus that can be perceived on the average. 2. In optical detection...