Request InfoSciencetech Inc.A quantum efficiency system uses two light sources simultaneously to illuminate the solar cell being tested. Sciencetech Inc.’s SKU: SS-QE-150 quantum efficiency (QE) system comprises a 150-W tunable-wavelength monochromatic light source and a separate solar simulator for use as the white light bias. The light source is identical to the one used for the spectral response system, with a motorized optical chopper between the xenon light source and the scanning monochromator to modulate the light. A source meter used as an active load permits operating the test cell at various load...See full productRelated content from Photonics MediaPRODUCTSPhotonics Spectra November 2023 IssueImaging PhotometerThe GeoImage™ Imaging Photometer for Vitrinite Reflectance Measurements from CRAIC Technologies is a microscope imaging photometer with optical capabilities for analyzing materials at a...Photonics Spectra November 2023 IssueGoniophotometerThe LM-79 Moving Detector Goniophotometer (Mirror Type C) from Lisun Electronics is an automatic light distribution intensity 3D curve testing system for measuring LEDs, plant lighting, indoor and...Photonics.com 8/24/2022Ethylene Oxide Monitoring SystemThe Ambient Air Monitoring System for Ethylene Oxide (EtO) has been announced by Picarro Inc., providing a continuous, automated solution for community monitoring stations and industrial fencelines....Photonics Spectra December 2023 IssueAutomated Analysis OscilloscopesThe Infiniium MXR B-series of oscilloscopes from Keysight Technologies Inc. are hardware-accelerated and offer automated analysis tools that enable engineers to find anomalies quickly. The product...ARTICLESPhotonics Spectra April 2023 IssuePerovskite Prodding Reveals Structural DynamicsA Rice University research team, with help from the Department of Energy’s SLAC National Accelerator Laboratory, has directly measured the structural dynamics in 2D perovskites. The...Photonics.com 1/5/2024Targeted Spectroscopy Can Improve Treatment of Eye DiseaseA targeted spectroscopy system developed at Zilia Inc., by a team led by professor Dominic Sauvageau from the University of Alberta, enables concurrent imaging of the eye fundus — a region at...Photonics.com 7/5/2023Optically Addressed Spintronics Eliminates Need for Magnetic FieldsElectron spins could become more efficient and easier to manage through a light-based approach using halide perovskite semiconductors. Research teams at Harvard’s Rowland Institute and the...Photonics Spectra September 2023 IssueTime-Resolved Spectroscopy Peers in on Irreversible PhenomenaA team of researchers at the University of Ottawa developed a terahertz (THz) spectroscopy technique for recording movies in real time at 50,000 fps. High-speed video captures and slow-motion...PHOTONICS HANDBOOK ARTICLESPhotonics HandbookOptical Delay Lines: Key to Time-Resolved MeasurementsOne of the most critical elements of any time-resolved spectroscopy and dynamics experiment is the optical delay line. A typical optical delay line consists of a retroreflector or folding mirrors on...Photonics HandbookAspheric Lenses: Design ConsiderationsAspheric surfaces are powerful tools that combine the optical corrections of multiple lenses into a single element (Figure 1) and affect performance in ways that spherical optics cannot. For example,...Photonics HandbookScatter and BSDF Measurements: Theory and PracticeExcept for direct illumination from the sun, laser, or other light source, everything we see or detect is ultimately scattered light. Light can be scattered or rescattered during its propagation to...Photonics HandbookRadiometry: A Simplified Description of Light MeasurementRadiometry involves several activities. The two most common are the description and measurement of optical radiation, and, starting with the knowledge of some aspects of optical radiation at one...WHITEPAPERSPhotonics.com 6/21/2023Noise Mitigation Strategies for Infrared DetectionWhen it comes to infrared measurements, a lock-in amplifier paired with a pulsed light source is an essential tool to increase the signal-to-noise ratio (SNR) for low light applications. This tech...Photonics.com 2/28/2024Measuring Near-Infrared (NIR) Light Sources for Effective 3D Facial RecognitionUnderstanding NIR Sensing and Approaches for Measuring Radiant Intensity of NIR Emissions and Structured Light Patterns.Photonics.com 9/1/2022Precision Motion and How to Achieve ItNanoscale motion requires fastidious attention to instrumentation, passive controls, and experiment design. Most users have experience in motion control within the sphere of the microscale. In this...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...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 4/23/2019Quantum Dots Are Making Displays Brighter and Photomedicine BetterIf you are interested in learning how QDs are currently used in displays and how the same materials are being engineered to yield even brighter, more efficient, better colors for future displays,...Photonics.com 9/8/2022Affordable, Low-Profile Solutions for Gas SensingBrian Sanders and Alfred Mottola of VIGO Photonics share the latest advancements in infrared (IR) detectors for the gas sensing market. These detectors are able to be deployed in small form factor...Photonics.com 1/28/2016CMOS-Integrated Nanophotonics Technologies for Short-Reach Communications LinksJoin us for a FREE webinar! CMOS-integrated nanophotonics (CINP) has the potential to bring traditional semiconductor industry efficiency and low-cost manufacturing to single-mode, short-reach...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 Dictionaryactive transportThe transport of molecules in a cell which requires the use of a cell's internal energy. The energy used in the cell may be ATP as a primary transport or an electrochemical gradient give as the...Photonics Dictionarylaser outputThe laser output refers to the generated and emitted light produced by a laser system. This output is characterized by several key properties that distinguish lasers from other light sources. These...Photonics DictionarylaserA laser, which stands for "light amplification by stimulated emission of radiation," is a device that produces coherent and focused beams of light through the process of optical amplification based...VIDEOSPhotonics.com 3/29/2018Light Matters Extra: Weird and Strange: Quantum Photonics - 03.2018In this month's Light Matters Extra, we take you to the Quantum Photonics Laboratory at MIT run by Dr. Dirk Englund. Dr. Englund's group, the Quantum Photonics Group, is made up of postdocs and...Photonics.com 8/24/2022Ramacle® Software Highlight: Fast Mapping - Edinburgh InstrumentsThis Software Highlight focuses on Fast Mapping in our Ramacle software. Fast Mapping enables the user to acquire Raman maps with significantly reduced acquisition times via more efficient stage...Photonics.com 2/21/2018Photonics on the Showroom Floor and in the Lab - LIGHT MATTERS 02.2018On this month's episode of Light Matters, we take you on a brief tour of the Higgins Laboratories at Worcester Polytechnic Institute (WPI). Quinsigamond Community College and WPI received a $4M grant...Photonics.com 3/29/2018Fundamentally Different Photonics - LIGHT MATTERS 03.2018On this month's episode of Light Matters, we take you to the South by Southwest (SXSW) Trade Show in Austin, Texas, as new photonics innovations hit the show floor of the Austin Convention Center....PHOTONICS BUYERS' GUIDE CATEGORIESPhotonics Components TestingWhite Light-Emitting Diodes (LEDs)Light-Emitting Diode TestingPower MetersCOMPANIESPhotonics 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' GuideAndor TechnologyAndor Technology Ltd is a global developer and manufacturer of high-performance scientific cameras, microscopy systems and spectrographs for academic, government, and industrial applications. Founded...Photonics Buyers' GuideOptikos CorporationThe Optical Engineering Experts® Optikos designs and manufactures metrology products for measuring and assuring optical image quality; and provides optical engineering design, development,...Photonics Buyers' GuideTeledyne DALSA, Machine Vision OEM ComponentsTeledyne DALSA is a part of Teledyne’s Vision Solutions group and a leader in the design, manufacture, and deployment of digital imaging components for machine vision. Teledyne DALSA image...