Request InfoOSI Optoelectronics Inc.OSI Optoelectronics’ indium gallium arsenide (InGaAs) Quad Photodiode Series offers extremely low crosstalk between elements with fast response times and excellent responsivity in the IR spectrum from 1100 to 1620 nm. Highly stable over time and temperature, the segmented quad InGaAs photodiodes are ideal for position sensing, beam alignment, and beam profiling. Available in 1- and 3-mm diameter active areas.See full productRelated content from Photonics MediaPRODUCTSPhotonics Showcase August 2023 IssueDual InGaAs Sandwich DetectorsOSI’s dual indium gallium arsenide (InGaAs) sandwich detectors for remote optical sensing feature low noise, fast response times, and high responsivity over a wide wavelength range. Available...Photonics Showcase September 2022 IssuePhotodetector ModulesPhotodetector modules are available in cylindrical and rectangular format for photon counting and analog signal detection using 25- and 30-mm diameter photomultiplier tubes. • Spectral range 170...Photonics Showcase October 2022 IssueHighly Sensitive Si APDHamamatsu’s Si avalanche photodiodes feature low bias operation, low terminal capacitance, and enhanced sensitivity in short-wavelength or long-wavelength regions. Unlike PIN photodiodes, Si...Photonics Showcase February 2024 IssuePhotonics Innovations UnveiledHamamatsu unlocked new products and innovations at Photonics West 2024. Our latest photonic advancements featured our ORCA-Quest qCMOS camera, OPAL-Luxe high dynamic range spectrometer, and our newly...ARTICLESPhotonics Spectra March 2023 IssuePhotonic Gas Analysis Probes Upgrades in Sources and DetectorsThe hunt is on for better gas analyzers, driven by growing demands. For instance, hydrogen sulfide, an industrial byproduct, has a permissible worker exposure limit of 20 parts per million (ppm) in a...BioPhotonics Jul/Aug 2022 IssueExpanding the Range: Wearables Enable the Next Level of Mobile Health Data MonitoringThe next generation of wearable devices will no longer be created only for the fitness-conscious to monitor their daily steps or heart rate on a smartwatch. Increasingly sophisticated photonic...Photonics Spectra May 2023 IssueBy the Numbers: Photon Counting and Number ResolutionLight transmits information about its emitter (source) and the medium of propagation. If this information is relevant, the light can be detected for analysis — and it has been detected with...Photonics Spectra January 2023 IssueMiniaturized Spectrometer Proves Fit for Compact ElectronicsScientists in Europe have collaborated to develop an ultracompact spectrometer design that offers large bandwidth, moderate spectral resolution, and a spectral sensitivity in the infrared (IR)...PHOTONICS HANDBOOK ARTICLESPhotonics HandbookRules of ThumbPhotonics Rules of Thumb Scientists and engineers tend to want to answer simple relational questions with a blackboard covered with equations, even when questioners just want a rough estimate to...WEBINARSPhotonics.com 12/5/2023Quantum Efficiency Measurements: Fundamentals for Solar Cell Research, Part 1In today’s energy-challenged world, clean energy topics are increasingly important, particularly with solar cell designs reaching new efficiency breakthroughs. This webinar series shares the...Photonics.com 2/14/2017An Introduction to Back Illuminated sCMOS CamerasScientific CMOS (sCMOS) cameras are increasingly becoming detectors of choice for a range of quantitative imaging and spectroscopy applications, from astronomy to biological sciences. This webinar,...Photonics.com 5/17/2023Medical Laser Applications: Defining Measurement Solutions That Keep the Process on TrackAs with any precision process, laser-based medical applications demand tight control of a laser’s behavior to keep the process on track. But how is this implemented in applications? Mark...Photonics.com 10/27/2021Expanding Capabilities with Optimized NIR Confocal ImagingFluorescence microscopy historically has been dominated by blue, green, and red imaging. Although this limitation is acceptable for some applications, multiplexing and deep tissue imaging suffer with...PHOTONICS DICTIONARY+ TERMSPhotonics Dictionaryimage centroidOften referred to as the geometric center of a given image or image plane, the centroid of an image is a fixed point located at the intersection of all of the hyperplanes of symmetry within that...Photonics Dictionaryindium phosphideIndium phosphide (InP) is a compound semiconductor material composed of indium (In) and phosphorus (P). It belongs to the III-V group of semiconductors, where elements from groups III and V of the...Photonics DictionaryAPD detectorAn APD detector, or avalanche photodiode detector, is a type of photodetector used to detect light or optical signals by converting incoming photons into electrical current. It operates based on the...Photonics Dictionarymicrobubble resonatorA microbubble resonator is a device used in photonics and optical physics for the precise manipulation of light waves. It consists of a micro-sized, gas-filled spherical cavity (the "microbubble")...VIDEOSPhotonics.com 5/2/2022Applied Scientific InstrumentationEstablished in 1990, Applied Scientific Instrumentation is a reknown American company committed to the advancement of science. ASI products have been thoroughly tested and evaluated in numerous labs...Photonics.com 5/8/2013LED Grown Tomatoes & Bug Eye Cameras - LIGHT MATTERS 05.08.2013-Bugs Eye Camera -LED Tomatoes -Asbestos Detection This week on Light Matters: a new digital camera offers a wide-angle bug’s eye view and nearly infinite depth of field, OCT improves lens...PHOTONICS BUYERS' GUIDE CATEGORIESSolid-State Photon-Cooled DetectorsPhotovoltaic and Photoconductive DetectorsCold ShieldsA cold shield is part of an infrared detector-Dewar assembly that limits the solid angle viewed by the sensor...Learn more about cold shields →Detector ArraysDetector arrays refer to a collection of individual detector elements arranged in a two-dimensional grid or matrix format. Each element within the array is capable of detecting electromagnetic...COMPANIESPhotonics Buyers' GuideOZ Optics LimitedEstablished in 1985, OZ Optics is a leading worldwide supplier of fiber optic components, test equipment and sensors. 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