A telescopic light-sensing meter used to measure illumination levels of small regions at a distance of many feet; it is used in professional motion picture and television production to ensure proper lighting levels and camera exposure.

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

A microring resonator is a compact optical device that utilizes the resonant behavior of light within a small ring-shaped...

Capacity of a vision system to capture an image of an object in motion and to resolve the direction and speed of that motion.

A photonic integrated circuit (PIC) is a compact and integrated device that incorporates multiple photonic components and...

Mie scattering, named after the German physicist Gustav Mie, refers to the scattering of electromagnetic radiation (such as...

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

Remote sensing is a method of data collection and observation where information about objects, areas, or phenomena on...

Germanium crystal refers to a crystalline form of the element germanium (Ge), which is a metalloid and semiconductor...

A coherent fiber bundle (CFB), also known as a coherent fiber optic bundle, is an assembly of multiple optical fibers...

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

The superimposition of a pilot object on each hologram. The fixed relative position of the scanning and pilot beam during...

A spectroradiometer is a device used to measure the intensity of light at different wavelengths across the electromagnetic...

A device for detecting visual and infrared radiation using a photoconductor as the principle sensing element.

A color center, in the context of materials science and condensed matter physics, refers to a specific type of...

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

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

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

A distributed feedback laser (DFB laser) is a type of semiconductor laser diode designed to emit coherent, narrow-bandwidth...

A sensing or image-forming detector that serves to convert infrared rays into visible signals for communication purposes....

A microcomb, short for microresonator frequency comb, is a novel photonic device that generates a precise series of evenly...

A photodetector, also known as a photosensor or photodiode, is a device that detects and converts light into an electrical...

Ultraviolet (UV) fiber optics refers to optical fibers that are designed and optimized for the transmission of ultraviolet...

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

A mechanical shutter that has had its timing escapement replaced with an electronic timing circuit. This circuit allows a...

In remote sensing technology, this represents the intensity of energy flow in the direction of wave propagation.

A method of sensing by transmitting energy from the sensor and detecting the energy after it has been reflected by the...

The degree to which a vision system is capable of sensing differences in light intensity between two regions.

A cryogenically cooled component incorporated into the Dewar of an infrared detector assembly to maintain the sensing...

A frequency comb is a precise and regular series of equally spaced spectral lines, or frequencies, that are generated with...

Instantaneous field of view (iFOV) is a term commonly used in the context of remote sensing, imaging systems, and optical...

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

A frame taken with a CCD camera of a surface that is evenly illuminated by diffuse light. This frame shows irregularities in...

Freeform optics refers to the design and fabrication of optical surfaces that do not follow traditional symmetric shapes,...

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

A lateral shearing interferometer is an optical device used in interferometry to measure phase differences between two beams...

1. A device used to trace out an object and build up an image. One of the most common of these types is video scanning. The...

A type of photoelectric proximity mode sensing incorporating a lens system to focus the light from the emitter in a small,...

Infrared (IR) refers to the region of the electromagnetic spectrum with wavelengths longer than those of visible light, but...

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

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

Use of a photoelectric receiver to sense an object's presence by detecting a small amount of the emitter's light that is...

Brillouin scattering is a phenomenon in physics where an incident electromagnetic wave (usually light) interacts with...

Often referred to as the geometric center of a given image or image plane, the centroid of an image is a fixed point located...

The science of sensing and measuring information at some remote location and transmitting the data to a convenient location...

Photonic crystals are artificial structures or materials designed to manipulate and control the flow of light in a manner...

In photoelectric sensing, the portion of the transmitted beam that actually functions in the system; the diameter of the...

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

Integration time, in the context of optics, imaging systems, and sensor technology, refers to the duration over which a...

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

A spectral signature, in the context of remote sensing and spectroscopy, refers to the unique pattern or characteristic...

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

A flowmeter is a device used to measure the flow rate or quantity of a fluid passing through a particular point in a system....

A molecular motor refers to a nano-sized device composed of organic molecules or other small-scale components that can...

In a remote sensing system, nadir refers to the point on the ground located vertically below the center of the system. In...

The field of view (FOV) refers to the extent of the observable world or the visible area that can be seen at any given...

Integrated photonics is a field of study and technology that involves the integration of optical components, such as lasers,...

An instrument that divides a single laser beam in two and uses one half as a sensing beam and the other as a reference beam,...

A CCD device for sensing longer wavelengths, such as NIR and IR, that has a deeper depletion region than would be necessary...

A microbubble resonator is a device used in photonics and optical physics for the precise manipulation of light waves. It...

Supercontinuum refers to a broad spectrum of light that spans a wide range of wavelengths, typically from the visible to the...

A microspectroscope equipped with a sensing and recording device, such as a camera, to measure the spectrum formed by...

A detector array refers to a collection of individual detector elements arranged in a two-dimensional grid or matrix format....

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

A MEMS fiber optic switch is a microelectromechanical system (MEMS) device designed to selectively route optical signals...

A phase-modulated sensor is a type of sensor that uses modulation of the phase of a signal to measure changes in a physical...

A hyperspectral imaging camera is a sophisticated imaging device capable of capturing and processing data across a wide...

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

An instrument used to record the emittance or reflectance of an object by scanning with discrete spectral resolution over a...

A term variously applied to remote sensing techniques that essentially refers to all parametric conditions that influence...

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

A device where each pixel in the detector array is mated with a preamplifier on a single silicon chip, providing sensing and...

A fiber optic imaging bundle is a specialized optical device composed of multiple optical fibers bundled together. Each...

Quantum sensing refers to a class of sensing technologies that leverage principles from quantum mechanics to enhance the...

A swept-source laser, also known as a wavelength-swept laser, is a type of laser that rapidly and continuously changes its...

A fiber optic preform is a cylindrical glass rod or tube used as the starting material for manufacturing optical fibers. It...

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

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

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

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

Short wavelength infrared (SWIR) refers to the portion of the infrared spectrum that encompasses wavelengths roughly between...

A system that generally uses a photodetector to decode punched cards for information, or for input to a computer, by sensing...

A thermal radiation detector consisting of a small cell with a blackened plastic front face that bulges slightly when heat...

A corner cube, also known as a corner reflector or retroreflector prism, is a type of optical device used to reflect light...

Backscatter refers to the phenomenon in which radiation or waves are scattered backward, opposite to the direction of the...

A CubeSat is a type of miniaturized satellite characterized by its standardized size and modular design. CubeSats are...

A set of photodiodes with no gaps between them that can sense the displacement of a spot of light anywhere on the sensing...

This type of miniaturized system, referred to as CMOS qPCR, combines microfluidic technology with an ultralow-light CMOS...

The term "embedded laser" typically refers to a laser device that is integrated or embedded into a larger system or...

Adaptive optics (AO) is a technology used to improve the performance of optical systems by reducing the effects of...

Spatial resolution refers to the level of detail or granularity in an image or a spatial dataset. It is a measure of the...

1. The sector of the Earth's surface registered upon a remote sensing device in a satellite. 2. The amount of space occupied...

A fiber Bragg grating (FBG) is a type of optical filter that is inscribed or "written" into the core of an optical fiber. It...

The angle at which photoelectric sensors are aligned to prevent light from being reflected back to the sensor from the...

Meta-optics, also known as metasurface optics or flat optics, is a branch of optics that involves the design, fabrication,...

Metasurfaces are two-dimensional arrays of subwavelength-scale artificial structures, often referred to as meta-atoms or...

Micro-optics refers to the design, fabrication, and application of optical components and systems at a microscale level....

Reflectance spectroscopy is a technique used to analyze the reflective properties of materials across various wavelengths of...

PCSEL stands for "photonic crystal surface-emitting laser." It refers to a type of laser diode that emits light from its...

An infrared lens is an optical component specifically designed and optimized for transmitting, focusing, or manipulating...

Pushbroom scanning is a technique used in remote sensing and imaging systems, particularly in satellite and aerial sensors,...

In optics and photonics, "phase" refers to a property of electromagnetic waves, such as light, that describes the position...

Parallel scanning refers to a method of acquiring data or images simultaneously from multiple sources or in parallel, rather...

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

An electro-optic modulator (EOM) is a device used to modulate the amplitude, phase, or polarization of light waves using an...

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

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

A satellite-borne remote sensing device capable of transmitting images at 10 and 20 m resolution from an altitude of 830 km,...

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

An optical pyrometer that is equipped with a narrow bandpass filter to transmit a limited number of wavelengths to the...

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

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

The spot on the retina where the optic nerve is attached; it is incapable of sensing light because of the absence of light...

A near-infrared (NIR) camera is an imaging device designed to capture images in the near-infrared region of the...

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

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

Long-wave infrared (LWIR) refers to a specific range of the infrared spectrum. Infrared radiation is divided into three main...

Technique for the precision evaluation of coincidence of a laser beam's center with the edge of the object under study and...

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

Optical fiber optic switches are devices used in optical fiber communication systems to selectively route optical signals...