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88 relations: Active pixel sensor, Anti-reflective coating, Astronomy, Birefringence, Bolometer, Cadmium zinc telluride, Carrier generation and recombination, Charge-coupled device, CMOS, Cryogenic particle detectors, Dark current (physics), Depletion region, Digital cinematography, Digital photography, Digital single-lens reflex camera, Digitization, Dynode, Electric current, Electrical resistance and conductance, Electromagnetic radiation, Electron, Electron hole, Electron microscope, Figure of merit, Gain (electronics), Gaseous ionization detectors, Golay cell, Graphene, Holographic data storage, Image sensor, Infrared, Ionization, Irradiance, LED circuit, Light, Light-emitting diode, Linear polarization, List of sensors, Mercury cadmium telluride, Microbolometer, Microchannel plate detector, Noise, Noise spectral density, Noise-equivalent power, Optoelectronics, Particle physics, P–n junction, Phonon, Photocathode, Photoconductivity, ..., Photocurrent, Photodiode, Photoelectric effect, Photoelectric sensor, Photographic developer, Photographic plate, Photomultiplier, Photon, Photoreceptor cell, Photorefractive effect, Photoresistor, Photosensitivity, Phototube, Photovoltaics, Polarization (waves), Pyroelectricity, Quantum dot, Quantum efficiency, Refractive index, Response time (technology), Responsivity, Retina, Rhodopsin, Rotating line camera, Semiconductor detector, Sensor, Silicon drift detector, Silver halide, Solar cell, Specific detectivity, Spectrophotometry, Suzaku (satellite), Thermocouple, Thermographic camera, Thermopile, Valence and conduction bands, Voltage, X-ray. Expand index (38 more) »
Active pixel sensor
An active-pixel sensor (APS) is an image sensor where each picture element ("pixel") has a photodetector and an active amplifier.
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Anti-reflective coating
An antireflective or anti-reflection (AR) coating is a type of optical coating applied to the surface of lenses and other optical elements to reduce reflection.
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Astronomy
Astronomy (from ἀστρονομία) is a natural science that studies celestial objects and phenomena.
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Birefringence
Birefringence is the optical property of a material having a refractive index that depends on the polarization and propagation direction of light.
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Bolometer
A bolometer is a device for measuring the power of incident electromagnetic radiation via the heating of a material with a temperature-dependent electrical resistance.
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Cadmium zinc telluride
Cadmium zinc telluride, (CdZnTe) or CZT, is a compound of cadmium, zinc and tellurium or, more strictly speaking, an alloy of cadmium telluride and zinc telluride.
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Carrier generation and recombination
In the solid-state physics of semiconductors, carrier generation and recombination are processes by which mobile charge carriers (electrons and electron holes) are created and eliminated.
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Charge-coupled device
A charge-coupled device (CCD) is a device for the movement of electrical charge, usually from within the device to an area where the charge can be manipulated, for example conversion into a digital value.
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CMOS
Complementary metal–oxide–semiconductor, abbreviated as CMOS, is a technology for constructing integrated circuits.
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Cryogenic particle detectors
Cryogenic particle detectors operate at very low temperature, typically only a few degrees above absolute zero.
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Dark current (physics)
In physics and in electronic engineering, dark current is the relatively small electric current that flows through photosensitive devices such as a photomultiplier tube, photodiode, or charge-coupled device even when no photons are entering the device; it consists of the charges generated in the detector when no outside radiation is entering the detector.
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Depletion region
In semiconductor physics, the depletion region, also called depletion layer, depletion zone, junction region, space charge region or space charge layer, is an insulating region within a conductive, doped semiconductor material where the mobile charge carriers have been diffused away, or have been forced away by an electric field.
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Digital cinematography
Digital cinematography is the process of capturing (recording) a motion picture using digital image sensors rather than through film stock.
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Digital photography
Digital photography is a form of photography that uses cameras containing arrays of electronic photodetectors to capture images focused by a lens, as opposed to an exposure on photographic film.
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Digital single-lens reflex camera
A digital single-lens reflex camera (also called digital SLR or DSLR) is a digital camera that combines the optics and the mechanisms of a single-lens reflex camera with a digital imaging sensor, as opposed to photographic film.
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Digitization
Digitization, at WhatIs.com in Collins English Dictionary less commonly digitalization, is the process of converting information into a digital (i.e. computer-readable) format, in which the information is organized into bits.
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Dynode
A dynode is an electrode in a vacuum tube that serves as an electron multiplier through secondary emission.
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Electric current
An electric current is a flow of electric charge.
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Electrical resistance and conductance
The electrical resistance of an electrical conductor is a measure of the difficulty to pass an electric current through that conductor.
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Electromagnetic radiation
In physics, electromagnetic radiation (EM radiation or EMR) refers to the waves (or their quanta, photons) of the electromagnetic field, propagating (radiating) through space-time, carrying electromagnetic radiant energy.
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Electron
The electron is a subatomic particle, symbol or, whose electric charge is negative one elementary charge.
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Electron hole
In physics, chemistry, and electronic engineering, an electron hole (often simply called a hole) is the lack of an electron at a position where one could exist in an atom or atomic lattice.
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Electron microscope
An electron microscope is a microscope that uses a beam of accelerated electrons as a source of illumination.
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Figure of merit
A figure of merit is a quantity used to characterize the performance of a device, system or method, relative to its alternatives.
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Gain (electronics)
In electronics, gain is a measure of the ability of a two-port circuit (often an amplifier) to increase the power or amplitude of a signal from the input to the output port by adding energy converted from some power supply to the signal.
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Gaseous ionization detectors
Gaseous ionization detectors are radiation detection instruments used in particle physics to detect the presence of ionizing particles, and in radiation protection applications to measure ionizing radiation.
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Golay cell
The Golay cell is a type of opto-acoustic detector mainly used for infrared spectroscopy.
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Graphene
Graphene is a semi-metal with a small overlap between the valence and the conduction bands (zero bandgap material).
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Holographic data storage
Holographic data storage is a potential technology in the area of high-capacity data storage currently dominated by magnetic data storage and conventional optical data storage.
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Image sensor
An image sensor or imaging sensor is a sensor that detects and conveys the information that constitutes an image.
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Infrared
Infrared radiation (IR) is electromagnetic radiation (EMR) with longer wavelengths than those of visible light, and is therefore generally invisible to the human eye (although IR at wavelengths up to 1050 nm from specially pulsed lasers can be seen by humans under certain conditions). It is sometimes called infrared light.
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Ionization
Ionization or ionisation, is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.
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Irradiance
In radiometry, irradiance is the radiant flux (power) received by a surface per unit area.
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LED circuit
In electronics, an LED circuit or LED driver is an electrical circuit used to power a light-emitting diode (LED).
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Light
Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum.
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Light-emitting diode
A light-emitting diode (LED) is a two-lead semiconductor light source.
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Linear polarization
In electrodynamics, linear polarization or plane polarization of electromagnetic radiation is a confinement of the electric field vector or magnetic field vector to a given plane along the direction of propagation.
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List of sensors
This is a list of sensors sorted by sensor type.
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Mercury cadmium telluride
HgCdTe or mercury cadmium telluride (also cadmium mercury telluride, MCT, MerCad Telluride, MerCadTel, MerCaT or CMT) is an alloy of cadmium telluride (CdTe) and mercury telluride (HgTe) with a tunable bandgap spanning the shortwave infrared to the very long wave infrared regions.
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Microbolometer
A microbolometer is a specific type of bolometer used as a detector in a thermal camera.
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Microchannel plate detector
A micro-channel plate (MCP) is a planar component used for detection of single particles (electrons, ions and neutrons) and low intensity impinging radiation (ultraviolet radiation and X-rays).
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Noise
Noise is unwanted sound judged to be unpleasant, loud or disruptive to hearing.
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Noise spectral density
In communications, noise spectral density, noise power density, or simply noise density (N0) is the power spectral density of noise or the noise power per unit of bandwidth.
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Noise-equivalent power
Noise-equivalent power (NEP) is a measure of the sensitivity of a photodetector or detector system.
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Optoelectronics
Optoelectronics is the study and application of electronic devices and systems that source, detect and control light, usually considered a sub-field of photonics.
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Particle physics
Particle physics (also high energy physics) is the branch of physics that studies the nature of the particles that constitute matter and radiation.
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P–n junction
A p–n junction is a boundary or interface between two types of semiconductor materials, p-type and n-type, inside a single crystal of semiconductor.
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Phonon
In physics, a phonon is a collective excitation in a periodic, elastic arrangement of atoms or molecules in condensed matter, like solids and some liquids.
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Photocathode
A photocathode is a negatively charged electrode in a light detection device such as a photomultiplier or phototube that is coated with a photosensitive compound.
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Photoconductivity
Photoconductivity is an optical and electrical phenomenon in which a material becomes more electrically conductive due to the absorption of electromagnetic radiation such as visible light, ultraviolet light, infrared light, or gamma radiation.
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Photocurrent
Photocurrent is the electric current through a photosensitive device, such as a photodiode, as the result of exposure to radiant power.
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Photodiode
A photodiode is a semiconductor device that converts light into an electrical current.
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Photoelectric effect
The photoelectric effect is the emission of electrons or other free carriers when light shines on a material.
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Photoelectric sensor
A photoelectric sensor, or photo eye, is an equipment used to discover the distance, absence, or presence of an object by using a light transmitter, often infrared, and a photoelectric receiver.
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Photographic developer
In the processing of photographic films, plates or papers, the photographic developer (or just developer) is one or more chemicals that convert the latent image to a visible image.
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Photographic plate
Photographic plates preceded photographic film as a capture medium in photography.
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Photomultiplier
Photomultiplier tubes (photomultipliers or PMTs for short), members of the class of vacuum tubes, and more specifically vacuum phototubes, are extremely sensitive detectors of light in the ultraviolet, visible, and near-infrared ranges of the electromagnetic spectrum.
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Photon
The photon is a type of elementary particle, the quantum of the electromagnetic field including electromagnetic radiation such as light, and the force carrier for the electromagnetic force (even when static via virtual particles).
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Photoreceptor cell
A photoreceptor cell is a specialized type of neuroepithelial cell found in the retina that is capable of visual phototransduction.
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Photorefractive effect
The photorefractive effect is a nonlinear optical effect seen in certain crystals and other materials that respond to light by altering their refractive index.
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Photoresistor
A photoresistor (or light-dependent resistor, LDR, or photo-conductive cell) is a light-controlled variable resistor.
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Photosensitivity
Photosensitivity is the amount to which an object reacts upon receiving photons, especially visible light.
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Phototube
A phototube or photoelectric cell is a type of gas-filled or vacuum tube that is sensitive to light.
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Photovoltaics
Photovoltaics (PV) is a term which covers the conversion of light into electricity using semiconducting materials that exhibit the photovoltaic effect, a phenomenon studied in physics, photochemistry, and electrochemistry.
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Polarization (waves)
Polarization (also polarisation) is a property applying to transverse waves that specifies the geometrical orientation of the oscillations.
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Pyroelectricity
Pyroelectricity (from the Greek pyr, fire, and electricity) is the property of certain crystals which are naturally electrically polarized and as a result contain large electric fields.
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Quantum dot
Quantum dots (QD) are very small semiconductor particles, only several nanometres in size, so small that their optical and electronic properties differ from those of larger particles.
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Quantum efficiency
The term quantum efficiency (QE) may apply to incident photon to converted electron (IPCE) ratio, of a photosensitive device or it may refer to the TMR effect of a Magnetic Tunnel Junction.
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Refractive index
In optics, the refractive index or index of refraction of a material is a dimensionless number that describes how light propagates through that medium.
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Response time (technology)
In technology, response time is the time a system or functional unit takes to react to a given input.
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Responsivity
Responsivity measures the input–output gain of a detector system.
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Retina
The retina is the innermost, light-sensitive "coat", or layer, of shell tissue of the eye of most vertebrates and some molluscs.
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Rhodopsin
Rhodopsin (also known as visual purple) is a light-sensitive receptor protein involved in visual phototransduction.
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Rotating line camera
A rotating line camera is a digital camera that uses a linear CCD array to assemble a digital image as the camera rotates.
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Semiconductor detector
This article is about ionizing radiation detectors.
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Sensor
In the broadest definition, a sensor is a device, module, or subsystem whose purpose is to detect events or changes in its environment and send the information to other electronics, frequently a computer processor.
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Silicon drift detector
Silicon drift detectors (SDDs) are X-ray radiation detectors used in x-ray spectrometry (XRF and EDS) and electron microscopy.
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Silver halide
A silver halide (or silver salt) is one of the chemical compounds that can form between the element silver and one of the halogens.
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Solar cell
A solar cell, or photovoltaic cell, is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical and chemical phenomenon.
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Specific detectivity
Specific detectivity, or D*, for a photodetector is a figure of merit used to characterize performance, equal to the reciprocal of noise-equivalent power (NEP), normalized per square root of the sensor's area and frequency bandwidth (reciprocal of twice the integration time).
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Spectrophotometry
In chemistry, spectrophotometry is the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength.
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Suzaku (satellite)
Suzaku (formerly ASTRO-EII) was an X-ray astronomy satellite developed jointly by NASA's Goddard Space Flight Center and the Institute of Space and Aeronautical Science at JAXA to probe high energy X-ray sources, such as supernova explosions, black holes and galactic clusters.
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Thermocouple
A thermocouple is an electrical device consisting of two dissimilar electrical conductors forming electrical junctions at differing temperatures.
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Thermographic camera
A thermographic camera (also called an infrared camera or thermal imaging camera) is a device that forms an image using infrared radiation, similar to a common camera that forms an image using visible light.
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Thermopile
A thermopile is an electronic device that converts thermal energy into electrical energy.
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Valence and conduction bands
In solid-state physics, the valence band and conduction band are the bands closest to the Fermi level and thus determine the electrical conductivity of the solid.
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Voltage
Voltage, electric potential difference, electric pressure or electric tension (formally denoted or, but more often simply as V or U, for instance in the context of Ohm's or Kirchhoff's circuit laws) is the difference in electric potential between two points.
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X-ray
X-rays make up X-radiation, a form of electromagnetic radiation.
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Ambient light sensor, Ambient light sensors, Light Sensors, Light sensor, Light-to-Digital Sensors, Optical detector, Optical detectors, Optical receiver, Photo cell, Photo detector, Photo sensor, Photocell, Photodetectors, Photosensor, Photosensors, Pixel sensor.
References
[1] https://en.wikipedia.org/wiki/Photodetector
