CHAMPAIGN, Ill., Jan. 4, 2012 — A method that chemically etches patterned arrays in the semiconductor gallium arsenide will make high-end optoelectronic devices easier to create. A team of researchers led by Xiuling Li, an electrical and computer engineering professor at the University of Illinois, developed the etching...Read full articleRelated content from Photonics MediaARTICLESAgarwal Group Puts Spin on PhotonsThe University of Pennsylvania’s (Penn) Agarwal Group, headed by professor Ritesh Agarwal, seeks to understand how light interacts with small-scale nanostructures. The group then uses that...Photonics Spectra December 2018 IssueWelding with Pulsed Lasers Protects Temperature-Sensitive MaterialsA new ceramic welding technology developed by engineers at the University of California, San Diego and the University of California, Riverside uses a series of short, ultrafast laser pulses to melt...Photonics Spectra November 2019 IssueLuminate NY Names Double Helix Top Winner of Competition's First RoundDouble Helix Optics was named the overall winner in the first round of the Luminate NY competition. The Boulder, Colo.-based company will receive $1 million in follow-on funding from New York state...BioPhotonics Jul/Aug 2018 IssueSolid-State Optical Cryocooler Refrigerates an IR Sensor to 135 KResearchers have demonstrated an all-solid-state optical cryocooler. The structure, which according to researchers is the first demonstration of laser cooling of a payload connected to a cooling...Photonics.com 6/22/2018PRODUCTSLight-Shaping Micro-OpticsLight-shaping micro-optics capabilities have been announced by Luminit LLC for lidar, time of flight, facial ID, and eye/head tracking applications. In-house direct-writing of masters, along...Photonics.com 9/11/2018THz Time-Domain SpectrometerThe Newport Terahertz Time-Domain Spectrometer (THz-TDS) from MKS Instruments Inc. is designed for the scientific research market. The THz-TDS is designed to work with amplified, femtosecond...BioPhotonics January 2019 IssueNovel Mirror MountA novel mirror mount from JAID Technologies Inc. can be used in the laboratory and OEM assemblies. Its patent pending design allows it to be firmly locked, at which time it becomes insensitive...Photonics.com 10/14/2019Industrial SensorsAmerican Sensor Technology Inc.’s environment pressure and liquid level sensors have been announced by Heilind Electronics. The hazardous location pressure transducers are certified to...Photonics.com 11/25/2019PHOTONICS HANDBOOK ARTICLESLaser Measurement Systems: Best Practices: When purchasing a laser, learning how to apply, troubleshoot, and evaluate that device is very important.Given 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 HandbookOptical Delay Lines: Key to Time-Resolved Measurements: To obtain an accurate means of creating reliable delays in any time-resolved spectroscopy or dynamic experiment, several factors about the delay line stage must be considered to reduce or eliminate errors associated with linear stages.One 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 Safety: Important Considerations: Laser safety is nothing to scoff at; lasers can be hazardous. Enter Class 1 laser products — lasers that are so safe that the user doesn’t require specific laser safety training or protective eyewear. Some precautions still exist, though.When purchasing an industrial laser system, the astute buyer will look for a Class 1 laser product — a system where the laser beam hazard is completely enclosed and there is no potential laser...Photonics HandbookAspheric Lenses: Design Considerations: This first of two articles will cover design and manufacturing options for aspheres; the second will include more detail on manufacturing and testing processes. These articles will provide the tools optics designers need to tailor their designs to the appropriate manufacturing process and to optimize the cost of component fabrication.Aspheric 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 HandbookWHITEPAPERSSlow Axis Collimators for Laser DiodesDiode laser technology is advancing at a breathtaking pace as suppliers add new wavelengths and improve output power but still present one big challenge to the system designer: their output is...Photonics.com 8/14/2018The Future of Optics: How Optical Product Design will Change the WorldNew technologies are creating new opportunities in the optomechanical engineering space. Prepare for what lies ahead in optical product design by reading what 13 experts have to say about how optical...Photonics.com 8/31/2018How Laser Quantum Measures and Reports Root Mean Square (RMS) % Noise ValueOne of Laser Quantum’s goals has always been to create lasers with the lowest possible noise. Intracavity frequency-doubled lasers have an inherent noise of about 3% RMS. Several techniques have been...Photonics.com 1/16/2019Multispectral Array Technology - Meeting New Space Economics and ObligationsFor over 40+ years, Materion Precision Optics (formerly Barr Associates) has been providing cutting edge multispectral arrays for high end government sponsored programs (Landsat, VIIRs, etc.). By...Photonics.com 10/10/2019WEBINARSTechniques in Biophotonic ImagingFREE WEBINAR Sponsored by: Hamamatsu & Applied Scientific Instrumentation Additional Questions & Answers from the webinar are below: Dr. Kimani C. Toussaint Jr. Quantitative...Photonics.com 3/21/2013Fiberguide RARe Motheye Fiber: Random Anti-Reflective (RARe) Nanostructures on Optical Fibers as Replacement for AR CoatingsAnti-reflective (AR) coatings are now entering their second century and have remained virtually unchanged throughout their life. As power level and wavelength range requirements continue to increase,...Photonics.com 1/18/2018Developments in Optics and Optical ComponentsFree Webinar Additional Questions & Answers from the Webinar below: Speakers: Dr. Robert R. McLeod Associate Professor and Graduate Director Electrical, Computer and Energy...Photonics.com 5/29/2013Biophotonic Imaging for Medicine: A Digital ConferenceResearchers from around the world presented their latest work at “Biophotonic Imaging for Medicine: A Digital Conference.” Presentations focused on a range of light-based imaging and...Photonics.com 6/11/2015PHOTONICS DICTIONARY TERMSphotonicsThe technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and...EDU.photonics.com 3/22/2016electro-optics1. The branch of physics that deals with the use of electrical energy to create or manipulate light waves, generally by changing the refractive index of a light-propagating material; 2....EDU.photonics.com 3/11/2016waferA cross-sectional slice cut from an ingot of either single-crystal, fused, polycrystalline or amorphous material that has refined surfaces either lapped or polished. Wafers are used either as...EDU.photonics.com 9/8/2009quantum cascade laserA Quantum Cascade Laser (QCL) is a type of semiconductor laser that emits light in the mid- to far-infrared portion of the electromagnetic spectrum. Quantum cascade lasers offer many benefits: They...EDU.photonics.com 6/25/2019MEDIAPenn's Agarwal Group Focuses on Light-Matter Interactions for Optoelectronic DevicesThe Agarwal Group at the University of Pennsylvania's Department of Materials Science and Engineering focuses on understanding how light interacts with small scale nanostructures. They also work to...Photonics.com 10/1/2018Photonics 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 2/21/2018Light 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 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.com 3/29/2018PHOTONICS BUYERS' GUIDE CATEGORIESDistributed Bragg Reflector LasersNarrowband LasersSolar Cells and WafersRaman CellsCOMPANIESII-VI Optical SystemsAs a vertically integrated provider, II-VI Optical Systems is uniquely positioned to meet the critical and complex design, engineering and production requirements of customers in the aerospace and...Photonics Buyers' GuideLaCroix Precision OpticsOptics that Defend, Build, Cure and Discover The LaCroix name is synonymous with quality precision optics. Since 1947, three generations of family leadership have placed LaCroix Precision Optics...Photonics Buyers' GuideA.R.W. Optical CorporationARW Optical is your reliable manufacturer of quality optics and coatings. Beamsplitters • Prototyping through volume-production quantities • High-performance and durable optical...Photonics Buyers' GuideKentek Corp.Laser safety eyewear, barriers & signs, laser components, laser replacement parts, laser accessories, medical laser safety eye protection - find these LaserSmart® products and more in the...Photonics Buyers' Guide