Request InfoTerahertz Technologies Inc.The PDA-750 photodiode amplifier is a low-noise, high-gain transimpedance amplifier that is designed to provide a direct digital readout of the current generated from a photo-diode, photomultiplier or similar current source. Applications include readout for unity quantum-efficient detectors, characterization of detector dark current, spectral calibration of detectors and sensitive high-precision optical power measurement.See full productRelated content from Photonics MediaPRODUCTSPromoted Content January 2024 IssueJ744 Compact Analog Optical-to-Electrical ConverterThe J744 includes a fast fiber-coupled photodiode, a transimpedance amplifier, an output amplifier, and power supplies. Output is nominally 1 volt per milliwatt of optical input when driving a...Photonics.com 2/23/2024PIN PhotodiodeThe VEMD2704 from Vishay Intertechnology is a silicon PIN photodiode that can be used with green LEDs for optical heart rate detection and red LEDs for pulse oximetry applications. Coming in a 2.0 mm...Photonics Spectra February 2024 IssueAnalog Front End SensorThe AS7058 from ams OSRAM is an analog front end (AFE) that uses photoplethysmography (PPG) signals to improve the reliability and accuracy of wearable devices. Producing an optical signal-to-noise...Photonics.com 4/2/2024Flow Cell and Reflection StrobeThe ATR Flow Cell and near infrared diffuse reflection probe (shown) from tec5USA Inc. are 3-A certified and can be used for applications including spectroscopic analysis for food, feed, and...ARTICLESPhotonics Spectra October 2022 IssueHybrid Interferometer Achieves Record-breaking Strain ResolutionsResearchers at the University of Alabama in Huntsville (UAH) have invented an ultrahigh-resolution interferometer that is sensitive enough to detect weak acoustic signals that are too faint to be...Photonics Spectra May 2023 IssueNovel Photodiode Cuts Excess Noise, Enhances Detection EfficiencyResearchers at the University of Sheffield designed and developed an avalanche photodiode (APD) with significant potential for low photon detection. The highly sensitive gallium arsenide...Photonics.com 10/14/2022Leonardo DRS Secures Army Contract; ZEISS Microscopy Strikes Contract: Week in Brief: 10/14/2022ARLINGTON, Va. — Leonardo DRS received a contract to produce its next-generation thermal weapon sights for the U.S. Army. The firm fixed-price contract from the U.S. Army Contracting Command is...Photonics Spectra November 2023 IssueNovel Integration Helps Solve Imaging BottleneckEngineers at imec have integrated a pinned photodiode (PPD) structure in thin-film image sensors. According to the researchers, the addition of a pinned-photogate and a transfer gate into the...PHOTONICS HANDBOOK ARTICLESPhotonics HandbookDetectors: Options for Low-Light ApplicationsDeveloped in the early 1990s, the silicon photomultiplier (SiPM) is a solid-state photodetector whose sensitivity to light rivals that of a photomultiplier tube (PMT) in a regime where a few hundred...Photonics HandbookSelecting a Photodetector: Using WITS$ as a Rough GuideLight is a versatile tool for investigating physical and chemical processes in nature. Any specific system being analyzed may, through the light it emits or reflects, communicate information about...Photonics HandbookLaser Measurement Systems: Best PracticesGiven the pace at which technology advances, there always seems to be a learning curve. With the abundance of consumer electronics available, there typically is no right or wrong way to use these...Photonics HandbookSpectroscopy: The Tools of the TradeAll optical spectrometry techniques rely on the measurement of radiant power. The configuration of the instrument varies based on the measurement technique: absorption, emission, luminescence, or...WHITEPAPERSPhotonics.com 9/29/2023Accuracy in Optical DesignAnswering some common questions new users of optical design and analysis software have are “How accurate are the results?” or “Can I trust the results I get?” and discussing the importance of...Photonics.com 10/16/2023Lumispot Tech FOGs Coil Application In Inertial NavigationFiber Optic Gyro Coil - The Core components of FOG used in inertial navigation field.Photonics.com 9/14/2023Phase Detection with Lock-in Amplifier and PhasemeterPrecise and sensitive phase detections are often required for impedance and optics-based measurements. For example, measuring the phase shift between current and voltage reveals the complex impedance...Photonics.com 3/18/2024Monolithic Hollow Corner Cube Retroreflectors for Precision MetrologyThis white paper compares the advantages and disadvantages of different types of retroreflectors. It highlights the advantages of monolithic, hollow retroreflectors which do not suffer from chromatic...WEBINARSPhotonics.com 9/29/2020Avalanche Photodiodes – Design and ApplicationsThe high-gain properties in avalanche photodiodes (APDs) make these devices an ideal choice for low-light-level detection in optical communications, spectroscopy, range finding and many other...Photonics.com 2/10/2021Fourier Transform Infrared (FTIR) Spectrometer: Theory, Practice, and ApplicationsFourier transform infrared (FTIR) spectroscopy is a spectroscopic technique that relies on optical interference to generate a spectrum. It enables spectral analysis covering a wide range, 1100 to...Photonics.com 9/2/2021Quantum Sensing in Atomic and Solid-State SystemsThe discrete electronic energy levels in atoms and atom-like systems and the ability to probe and control them using their interactions with electromagnetic fields have enabled a host of applications...Photonics.com 1/11/2017Silicon Photomultiplier: Theory and PracticeThe silicon photomultiplier (SiPM), also known as Multi-Pixel Photon Counter (MPPC), is becoming a popular choice of a photodetector in applications where even single photons must be detected. The...PHOTONICS DICTIONARY+ TERMSPhotonics Dictionaryquantum efficiencyQuantum efficiency (QE) is a measure of the effectiveness with which a device or system, typically in the context of photonics or electronics, converts incoming photons (light) into a useful output...Photonics DictionaryphotodetectorA photodetector, also known as a photosensor or photodiode, is a device that detects and converts light into an electrical signal. Photodetectors are widely used in various applications, ranging from...Photonics Dictionarydetector arrayA detector array refers 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...Photonics Dictionaryvacuum ultraviolet detectorA device that serves to detect the presence of vacuum ultraviolet radiation. It may be photographic film, a thermopile, ion chamber, vacuum photodiode, photomultiplier or channel electron multiplier.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 7/28/2020Introduction to Photodetectors - Hamamatsu CorporationPhotodetectors—such as photodiodes (PDs), avalanche photodiodes (APDs), photomultiplier tubes (PMTs), and silicon photomultipliers (SiPMs)—are essential components in a vast array of modern...Photonics.com 9/28/2017Light Matters Extra: Optics & Photonics Technology Program, STCC - 09.2017In this month’s Light Matters Extra, we take you to the Springfield Technical Community College campus and introduce you to Professor Nick Massa, who has been teaching Optics and Photonics there for...Photonics.com 4/6/2016Marktech Optoelectronics Custom Engineering CapabilitiesMarktech Optoelectronics is a leading manufacturer of UV visible, near-infrared, and short wavelength infrared (SWIR) emitters, detectors, and materials including InP epiwafers. Marktech maintains an...PHOTONICS BUYERS' GUIDE CATEGORIESPhotomultiplier Tube ShieldsSilicon Photomultiplier DetectorsPhotomultiplier Tube HousingsPhotomultiplier Tube DetectorsCOMPANIESPhotonics Buyers' GuideTeledyne Judson TechnologiesTeledyne Judson Technologies (TJT) is a global leader for IR sensors from the Visible to VLWIR spectrum. Two-dimensional FPAs (InGaAs, InSb, and MCT) and Integrated Dewar Cooler Assemblies (IDCAs)...Photonics Buyers' GuideHamamatsu CorporationHamamatsu Corporation is the North American subsidiary of Hamamatsu Photonics K.K. (Japan), a leading manufacturer of devices for the generation and measurement of infrared, visible, and ultraviolet...Photonics Buyers' GuideExcelitas Technologies Corp.Excelitas Technologies® Corp. is a leading industrial technology manufacturer focused on delivering innovative, market-driven photonic solutions to meet the illumination, optical, optronic,...Photonics Buyers' GuideOZ Optics LimitedEstablished in 1985, OZ Optics is a leading worldwide supplier of fiber optic components, test equipment and sensors. OZ Optics manufactures its products in three locations, Ottawa (Canada),...