WASHINGTON, Feb. 24 -- Scientists using observations from NASA's Reuven Ramaty High-Energy Solar Spectroscopic Imager (RHESSI) satellite detected flashes of gamma ray energy in Earth's upper atmosphere in greater detail than ever before. RHESSI is part of NASA's Sun-Earth Connection program. It was designed to study x-rays and gamma rays from solar flares. However, RHESSI's detectors pick up gamma rays from a variety of sources. A team of researchers from the University of California, Santa Cruz, University of California, Berkeley, and the University of British Columbia, Vancouver, have...Read full articleRelated content from Photonics MediaArticlesIn-Space Laser Power Beaming Experiment Enters OrbitThe U.S. Naval Research Laboratory (NRL) completed its launch of the Space Wireless Energy Laser Link (SWELL), an experiment to demonstrate laser power beaming in space as part of the scheduled U.S....Photonics.com 3/16/2023iThera Medical Closes $15.6M Funding Round: Week in Brief: 12/23/22Medical technology company iThera Medical closed a £13 million ($15.6 million) funding round led by TRUMPF Venture. The funding will drive the company’s commercialization and development...Photonics.com 12/23/2022Hesai Group Charges Forward with IPO Pricing: Week in Brief: 02/10/23Lidar technology company Hesai Group announced the pricing of its initial public offering of 10 million American Depositary Shares (ADS), at $19 per ADS, for a total offering size of $190 million....Photonics.com 2/10/2023Integrated Photonic Quantum Sensing Takes Aim at Climate ResearchA NASA-funded collaboration will focus on advancing quantum sensing technology to enable new understanding of Earth and the effects of climate change. Led by the University of Texas at Austin (UT),...Photonics.com 3/28/2023ProductsOptical Sensing InterrogatorsFemto Sensing International has expanded its SX line of optical sensing interrogators for high-sensor-count fiber Bragg grating (FBG) applications. Designed for industrial, medical, civil,...Photonics.com 12/12/2022Hand-Held Gas Detection CameraThe Handheld Optical Gas Imaging Camera from MFE Inspection Solutions visualizes harmful gas leaks in real-time for immediate action. The handheld device features a 640 × 512 HOT MWIR...Photonics Spectra January 2023 IssueSilicon Photodiode ChipsThe VTH21 series of photodiodes from Excelitas Technologies Corp. are low-capacitance silicon photodiode chips for radon gas detection. Featuring a robust chip design in either a waffle pack or...Photonics Spectra December 2022 IssueEthylene 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 8/24/2022Photonics Handbook ArticlesPhotomultipliers: Low-Light, High-Speed SpecialistsThe applications where rapid detection of light is a must are many. They include a wide variety: semiconductor inspection, gene sequencing, oil well logging and high-energy physics. The reasons for...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...Photonics HandbookPhysical Constants & Conversion FactorsPhysical Constants & Conversion Factors Length [I] 1 meter (m) = 39.3700 in. = 3.280833 ft = 1.093611 yd 1 kilometer (km) = 0.6213711 mi = 0.53996 nautical mi 1 micron (µm) =...Photonics HandbookCO2 Lasers: The Industrial WorkhorseIn the three decades since its introduction, the CO2 laser has become the workhorse of industrial lasers. Today it is available in a range of designs and sizes with output powers of 20 kW and more....Photonics HandbookWhite PapersMonolithic 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...Photonics.com 3/18/2024Lumispot Tech Laser Solution- Pulsed Fiber Laser For Automotive Laser LIDAR EquipmentLumispot Tech Laser Solution - Light source of 1550 nm/1535 nm pulsed fiber laser for laser lidar used in unmanned driving, with the function of ranging, detection etc.Photonics.com 10/13/2023Mini Size 1535-nm Eye-safe Laser Rangefinder Module for Distance SensorThe Lumispot Tech LSP-LRS-0310F is a compact and lightweight laser rangefinder module, notable for being the smallest of its kind, weighing only 33 g. It is a highly precise tool for measuring...Photonics.com 12/15/2023Optimum Order Sorting Filters for SpectrometersLearn how linear variable filters can be used in a compact spectrometer to provide optimum order sorting.Photonics.com 2/28/2024WebinarsPhotonics in Space ApplicationsFREE WEBINAR Webinar Questions and Answers from Dr. Rubenchik: Dr. Alexander Rubenchik Lawrence Livermore National Laboratory, Livermore, Calif. The Promise of Pulsed Lasers in...Photonics.com 11/15/2012The Universe Through Sight, Sound, and Touch: Exploring Multiwavelength Astrophysics Data SetsInformation from the universe can be more than just a two-dimensional snapshot. These digital assets can be transformed to enable us to listen to, feel, or virtually move through cosmic objects....Photonics.com 3/8/2023LAM Technology, Opportunities and ChallengesLearn about LAM from a seasoned professional with more than 40 years of experience in laser technology and its application. This webinar will provide you with a solid foundation in laser...Photonics.com 1/12/2017Revolutionizing Measurements: Next-Generation Strategies for Modern Phase DetectionLiquid Instruments co-founder and CEO Daniel Shaddock shares next-generation strategies to perform optical phase locking using digitally implemented, FPGA-based lock-in amplifiers and phasemeters. He...Photonics.com 6/20/2023Photonics Dictionary Termsbubble chamberA large tank filled with liquid hydrogen, with a flat window at one end and complex optical devices for observing and photographing the rows of fine bubbles formed when a high-energy particle...Photonics Dictionaryatomic emission spectrometrySpectrometric analysis of the distinct and characteristic spectra of atoms of elements. The atoms are energized to emit radiant energy, which, when dispersed by a prism or diffraction grating,...Photonics Dictionarycrystal counterAn instrument that is used to detect high-energy particles by the pulse of the current formed when a particle passes through a normally insulating crystal to which a potential difference is applied.Photonics DictionaryplasmonicsPlasmonics is a field of science and technology that focuses on the interaction between electromagnetic radiation and free electrons in a metal or semiconductor at the nanoscale. Specifically,...Photonics DictionaryMediaLight 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 9/28/2017Fundamentally 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.com 3/29/2018Photonics 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 2/21/2018A 'Smart' Lighting Revolution - LIGHT MATTERS 08.2017In this episode, we take you to a U.S. National Science Foundation Engineering Research Center at Rensselaer Polytechnic Institute in New York. Researchers there are leading the charge for "smart"...Photonics.com 8/28/2017Photonics Buyers' Guide CategoriesPower MetersScintillation DetectorsPhotoacoustic DetectorsRemote Sensing EquipmentCompaniesAndor 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' 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),...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' GuideMKS Ophir, Light & MeasurementOphir is a brand within the MKS Instruments Light & Motion division. The Ophir product portfolio consists of laser and LED measurement products, including laser power and energy meters, laser...Photonics Buyers' Guide