DENVER, Colo., Feb. 19 -- A new all-optical atomic clock is so accurate, its creators theorize it won't lose or gain a second in 4.5 billion years. Using a femtosecond laser to measure time intervals too tiny to be measured in nanoseconds, Scott A. Diddams, a researcher with the National Institute of Standards and Technology in Boulder, and his colleagues said they were able to keep time with greater precision than with existing atomic clocks -- by five orders of magnitude. They discussed improvements in the femtosecond laser technology, and their efforts to make counters for the new optical...Read full articleRelated content from Photonics MediaArticlesChris Cassidy Named President of SCHOTT North America: People in the News: 01/11/23SCHOTT appointed Chris Cassidy, current president of SCHOTT Pharma USA, as president of SCHOTT North America. He will hold both positions. 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Its BrightLine technology features a two-in-one laser light cable...Photonics Spectra July 2022 IssueMicrowave Optical Fiber Transmission ModuleThe Rof 1-6G Microwave Optical Fiber Transmission Module from Beijing Rofea Optoelectronics Co. Ltd. consists of a transmitter module and a receiver module, featuring a high linear direct-mode...Photonics.com 8/11/2023Laser Welding HeadThe HIGHtactile laser welding head from Coherent Corp. features tactile seam-tracking technology specifically designed for electric vehicle manufacturing applications. The device features...Photonics.com 6/14/2023Photonics Handbook ArticlesExcimer Lasers: Photonic Stamps with Micron ResolutionExcimers are pulsed gas lasers that deliver high output power and pulse energies in the ultraviolet and deep-ultraviolet wavelengths. 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It operates based on the principle of stimulated emission of photons from...Closed-Cycle Cryogenic CoolersLaser Safety ServicesUltraviolet Radiation SourcesCompaniesFOCtek 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 CorporationOHARA manufactures more than 130 environmentally safe optical glass types, free of both lead and arsenic. More than 300 tons of optical glass are melted per month, available in the following forms of...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' GuideLaservision USALASER SAFETY • Eyewear • Barriers • Windows • Training laservision USA designs and manufactures a comprehensive assortment of custom-made laser safety eyewear that attenuates...Photonics Buyers' Guide