SÃO CARLOS, Brazil, June 22, 2017 — A transistor based on quantum dots has been developed. The device, which contains micrometric and nanometric parts, can see light, count, and store information within its own structure, removing the need for a complementary memory unit. Researchers produced the transistor by coating a crystal substrate with thin film. On this microscopic substrate, nanoscopic droplets of indium arsenide act as quantum dots, confining electrons in quantized states. Memory functionality is derived from the dynamics of electrical charging and discharging of the quantum dots, creating current patterns with...Read full articleRelated content from Photonics MediaARTICLESQuantum Dots Create Distance Between Electron Spins for Quantum ComputingScientists at the Niels Bohr Institute have realized the swap of electron spins between distant quantum dots. This is significant for future quantum communications because it will allow the distance...EuroPhotonics Summer 2019 IssueColloidal Quantum Dot, IR LEDs Display Highest EfficiencyA composite material that is a strong light emitter as well as an efficient charge conductor — colloidal quantum dot (CQD) LEDs — has been developed by a team at the Institute of Photonic...EuroPhotonics Spring 2019 IssueElectric field-induced Charging Could Improve Colloidal Quantum Dot LasingResearchers at Nanyang Technological University (NTU Singapore) have demonstrated tunable, controllable amplified spontaneous emission (ASE) in a colloidal semiconductor device via electric...Photonics Spectra February 2020 IssueMachine Learning Helps Tune, Characterize Quantum Dots QuicklyUsing a machine-learning approach, scientists from the Universities of Oxford, Basel, and Lancaster are automating the process of characterizing and tuning individual semiconductor quantum dots (QDs)...Photonics.com 9/27/2019PRODUCTSDie Attach AdhesiveMONOPOX EG2596 die attach adhesive from DELO Industrial Adhesives LLC offers strong adhesion after aging and flexibility in dispensing. Fluorescent and suitable for long-term use, the adhesive...Photonics.com 9/24/2020Photonic Microassembly SystemThe FINEPLACER® femtoblu bonding system from Finetech GmbH & Co. KG is an automated microassembly cell for dedicated photonic production. Demanding applications benefit from a placement...Photonics.com 10/20/2020Flip-Chip BondersACCμRA flip-chip bonders from Smart Equipment Technology SA are dedicated to production for optoelectronic and silicon photonics applications. The ACCμRA Plus is designed for ±...Photonics.com 2/25/2020In-Line Particle SensorThe In-Line Particle Sensor™ (IPS™) from CyberOptics® Corp. features CyberSpectrum™ software to constantly detect particles in gas and vacuum lines in semiconductor process...Photonics.com 3/13/2020PHOTONICS HANDBOOK ARTICLESLight-Emitting Diodes: A Primer: Light-emitting diodes (LEDs) are semiconductors that convert electrical energy into light energy. 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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 HandbookIndustrial Lasers: An Introduction to Process Qualification: The step from successfully demonstrating a new laser process on a limited number of samples under laboratory conditions, to scaling that process up for high-volume industrial use is a big one. In particular, it’s necessary to determine how variations in process parameters affect end results, so that acceptable process input and operating ranges can be determined.Materials processing with lasers is actually a broad term for a diverse range of applications. The major categories of these uses, and the lasers that service them, are summarized Table 1. At one...Photonics HandbookWHITEPAPERSLight Changes Matter – with Optics, Lasers and SensorsThe Light & Optics division is a global OEM supplier of solutions and products based on photonics technologies. Jenoptik provides a broad portfolio of technologies combined with deep experience of...Photonics.com 9/11/2020Photophysical Characterisation of Perovskite Quantum DotsPerovskite Quantum Dots are a promising new class of light emitters. In this paper a complete photophysical characterisation, comprising of absorption spectra, photoluminescence spectra,...Photonics.com 1/1/2019Kinetics of Photocatalysis Reactions Studied by Transient Absorption SpectroscopyPhotocatalysis is the rate increase of a chemical reaction by light, often in the presence of a catalyst that starts the reaction upon irradiation. Photocatalysts are typically semiconducting metal...Photonics.com 11/1/2019Automated Solutions for SAE Standard HUD MeasurementHead-up display (HUD) technology is one of the largest growth areas in the automotive market, and standard measurement criteria are rapidly being defined to evaluate augmented projections for visual...Photonics.com 9/1/2019WEBINARSNovel IR Sensors for Medicine, Industry, and Homeland SecurityThis is a free webinar presented by Photonics Media. 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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 3/11/2016quantum dotsAlso known as QDs. Nanocrystals of semiconductor materials that fluoresce when excited by external light sources, primarily in narrow visible and near-infrared regions; they are commonly used as...EDU.photonics.com 6/30/2017common optoelectronics laser detection system (COLDS)A laser warning and countermeasure system containing a sensor that indicates the direction of a laser beam, and analytical instruments to determine pulse code, repetition frequency and wavelength.EDU.photonics.com 9/8/2009optoelectronicsA sub-field of photonics that pertains to an electronic device that responds to optical power, emits or modifies optical radiation, or utilizes optical radiation for its internal operation. Any...EDU.photonics.com 3/5/2018MEDIAPenn'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 10/1/2018Binding Light in Optics and Photonics - LIGHT MATTERS 11.2017Tune into this month's edition of Light Matters for 'Part 1' of an exclusive interview with SPIE CEO, Eugene Arthurs, as he speaks about his upcoming retirement. We’ll also take you to Rochester,...Photonics.com 11/17/2017Optics and Photonics at the Hub of the Industry - LIGHT MATTERS 10.2017Tune into this month's edition of Light Matters for some of the highlights from Optifab 2017, as distributors and buyers from all over the world met in the photonics industry hub of Rochester, New...Photonics.com 10/26/2017Light Matters Extra: Optifab 2017 - 10.2017In this month's Light Matters Extra, we give you an in-depth look at North America's largest optical fabrication exhibition and show – Optifab 2017. 188 companies filled the showroom floor of the...Photonics.com 10/26/2017PHOTONICS BUYERS' GUIDE CATEGORIESDetector ChipsLight-Emitting Diode Packaging MaterialsGermanium CrystalsBroadband Light SourcesCOMPANIESII-VI Aerospace & Defense Inc.As a vertically integrated provider, II-VI Aerospace & Defense is uniquely positioned to meet the critical and complex design, engineering and production requirements of customers in the...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' GuideFOCtek Photonics Inc.FOCtek provides customers with all types of custom manufactured lenses, Precision Optical Components, Polarizing Optics, Prisms, Filters, Coatings, Optical Systems, Crystals, Nonlinear Crystals,...Photonics Buyers' Guide