Request InfoKeithley Instruments Inc.CLEVELAND, Oct. 4, 2011 — Keithley Instruments Inc. has announced a low-cost addition to its Series 2400 SourceMeter instrument family. As with all of the company’s source measurement unit instruments, Model 2401 is optimized for high-precision test applications such as current versus voltage characterization of photovoltaic cells, high-brightness LEDs, semiconductor devices, low-voltage materials as well as resistance measurements. It provides these advanced source and measurement unit capabilities at 20-V and 1-A signal levels. The stand-alone instrument integrates a highly stable DC power source with a...See full productRelated content from Photonics MediaPRODUCTSPhotonics.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.com 5/13/2022Metrology and Surface Imaging Software PlatformThe fully 64-bit TrueMap® 6 software platform for surface imaging and analysis from TrueGage contains multi-threaded algorithms, a redesigned user interface, and new capabilities. Users of...Photonics.com 10/5/2022Optical Testing ProjectorThe Meridian® Sol-55 projector from Optikos Corp. provides illumination through a high-intensity white LED, which can be remotely controlled for high dynamic range measurements in automotive...Photonics.com 10/14/2022Chemical Imaging SystemThe 8700 LDIR Chemical Imaging System from Agilent Technologies Inc. is optimized for the analysis of microplastics in environmental samples. The package includes Clarity 1.5 software, advancing...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 11/1/2023Synthesized Nanoresonators Harness Power of IR for Optics and ElectronicsWhen combined with electronics, infrared (IR) light can enable small, fast devices for sensing, imaging, and signaling at the molecular level. To fully harness the advantages of IR light, the...Photonics Spectra August 2023 IssueAIM Photonics to Offer Optoelectronic Testing ServicesAIM Photonics has launched its new Opto-electronic Testing Services, which the institute said features a full suite of advanced tools for testing photonic integrated circuits (PICs) and conventional...Photonics.com 12/12/2022LLNL’s Nuclear Fusion Breakthrough Offers Step to Clean EnergyResearchers at the National Ignition Facility (NIF) and Lawrence Livermore National Laboratory (LLNL) have made a significant breakthrough in ongoing nuclear fusion research. The scientists created a...PHOTONICS HANDBOOK ARTICLESPhotonics 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...Photonics 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 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 HandbookDynamic Interferometry: Getting Rid of the JittersConditions on the factory floor and in industrial cleanrooms with high-capacity air filtration systems can hamper the use of interferometry. Another problem is the testing of large-aperture mirrors...WHITEPAPERSPhotonics.com 12/20/2022Seiwa Inspection SystemThis document outlines how Seiwa Optical's fully automated inspection equipment can increase the threshold, reduce chip loss, and decrease production costs of wafer manufacturing.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 9/29/2023Accuracy 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 2/28/2024Emerging Challenges in Smart Glass QualityMeasuring and calibrating LED edge-lit sunroofs.WEBINARSPhotonics.com 5/12/2021Improving the Design of Optical Devices Through STOP AnalysesThere is an ever-increasing interest in structural-thermal-optical performance (STOP) analysis for optical systems, in which temperature change and structural loads affect the optical performance....Photonics.com 5/20/2021Measuring the Power and Beam Profile of Divergent Laser SourcesLasers with large beam divergence are used in a number of applications, such as remote sensing, optical communications, and materials processing. Large beam divergences create challenges for reliably...Photonics.com 9/16/2020Principles of Laser Beam ProfilingBeam profiling describes the measurement of the spatial distribution of power of a laser beam. Laser users often wonder if they need to profile their lasers but may have nagging doubts as to why....Photonics.com 7/20/2021Processor Trends in Compact Industrial CamerasVision applications across industrial and medical markets are demanding improvements in camera size, speed, intelligence, and power consumption. Additional requirements for industrial markets include...PHOTONICS DICTIONARY+ TERMSPhotonics Dictionarylight source powerThe electrical power used to stimulate any light source. Power supplies may be step-up or step-down transformers; rectifiers to convert AC to DC; ammeters and voltmeters to observe the input to the...Photonics Dictionaryphotoelectric exposure meterA device consisting of a microammeter, a photovoltaic cell and a battery. It is used for the measurement of scene brightness and the determination of correct exposure for photographic processes.Photonics Dictionaryautomatic recording spectrographA direct reading spectrograph having a photomultiplier assembly in place of a photographic plate. The output from the photomultiplier assembly is received by a microammeter or a pen recorder.Photonics DictionaryphotochemicalThe term photochemical pertains to chemical processes or reactions that are initiated or influenced by the absorption of light. Photochemical reactions involve the interaction of light, often in the...VIDEOSPhotonics.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 7/2/2018Light Tomorrow with TodayLuminate NY, the only optics, photonics and imaging (OPI) accelerator and investment fund in the world, announced the final winners at the Light Tomorrow with Today event in Rochester, NY. For the...Photonics.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 7/30/2018PIC Fundamentals, Design at Heart of AIM Photonics Summer AcademyStudents from large and small size companies and bigger Department of Defense affiliates of the AIM Photonics Institute took part in the recent AIM Photonics Summer Academy at MIT. This was the third...PHOTONICS BUYERS' GUIDE CATEGORIESPhotoelectric Exposure MetersA photoelectric exposure meter is a device consisting of a microammeter, a photovoltaic cell and a battery. It is used for the measurement of scene brightness and the determination of correct...Digital Panel MetersRadiometersA radiometer is a device used to measure the intensity of radiant energy.SpectroradiometersA spectroradiometer is a device used to measure the intensity of light at different wavelengths across the electromagnetic spectrum. It provides a detailed spectral distribution of light, breaking...COMPANIESPhotonics 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' 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' GuidePrecision OpticalPrecision Optical: our name embodies who we are. Since 1959, Precision Optical has earned a widely recognized reputation for reliability, value, and quality precision optics for the most demanding...