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Violet Diode Lasers See Broadened Application Base

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These short-wavelength laser diodes are branching out from the optical storage market into digital, metrology and life sciences applications.

Dr. Gregory Flinn, Toptica Photonics AG

The recent availability of GaN-based laser diodes, nurtured by a strong and flourishing LED market, has opened up a host of new applications. The optical storage market, essentially the raison d’être for this technology, is leading the way with a new generation of writers/players that build upon established optical storage technology. The two contenders for a new storage format, the recently standardized Blu-ray Disc,1 proposed by the 10-strong, similarly named consortium, and AOD,2 proposed by Toshiba and NEC, both utilize 405-nm laser diodes but differ in the extent of their departure from...Read full article

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    Published: January 2004
    Glossary
    metrology
    Metrology is the science and practice of measurement. It encompasses the theoretical and practical aspects of measurement, including the development of measurement standards, techniques, and instruments, as well as the application of measurement principles in various fields. The primary objectives of metrology are to ensure accuracy, reliability, and consistency in measurements and to establish traceability to recognized standards. Metrology plays a crucial role in science, industry,...
    CommunicationsDVDFeaturesGaN-based laser diodesindustrialmetrologyMicroscopyNECToshibaLEDs

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