OSAKA, Japan, Aug. 1, 2019 — Scientists from Osaka University have demonstrated how information encoded in the circular polarization of a laser beam can be translated into the spin state of an electron in a quantum dot (QD). They used laser light to send quantum information to a QD by altering the spin state of a single electron trapped on the QD. “This action allowed us to read the state of the electron after applying the laser light to confirm that it was in the correct spin state,” professor Takafumi Fujita said. Although electrons don’t spin in the traditional sense, they do have angular...Read full articleRelated content from Photonics MediaARTICLESTwo-Photon Comb Technique Supports 20-km Distribution for Quantum CommunicationIn telecom networks connected by fiber optic cable, transmitted photons tend to be absorbed by the material that comprises the cable after traveling just a few kilometers. 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The...Photonics.com 5/11/2021PHOTONICS DICTIONARY TERMSquantum 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 6/30/2017photonicsThe 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 3/22/2016excitation1. The process by which an atom acquires energy sufficient to raise it to a quantum state higher than its ground state. 2. More specifically with respect to lasers, the process by which the material...EDU.photonics.com 9/8/2009quantum opticsThe area of optics in which quantum theory is used to describe light in discrete units or "quanta" of energy known as photons. 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They also work to...Photonics.com 10/1/2018PHOTONICS BUYERS' GUIDE CATEGORIESOptical Communications SystemsPhotonics Components TestingLaser Lamp Light SourcesQuantum Cascade LasersCOMPANIESFOCtek 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' GuideOhara Corporation, Western OfficeOhara manufactures precision optical glasses: strip/slab, cut/molded blanks, pressings, high homogeneity blanks, fine gobs, polished ball lenses, near-UV transmitting i-Line glass, ceramic...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' 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' Guide