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Chalcogenide Glasses for Infrared Optics by A. Ray Hilton

By A. Ray Hilton

State of the art concepts for yielding top quality chalcogenide glasses This pioneering paintings describes the know-how, constructed over a 50-year interval, to make use of chalcogenide glasses as infrared optical fabrics. equipment for qualitatively selecting chalcogenide glass compositions and generating high-purity homogeneous glass are mentioned. Chalcogenide Glasses for Infrared Optics contains exact creation strategies constructed in the course of the author's paintings at either Texas tools (TI) and Amorphous fabrics, Inc. (AMI). The construction of vacuum drift zoned silicon, gallium arsenide, and cadmium telluride, all necessary in infrared know-how, is defined. The ebook highlights examples of ways glass composition may be replaced to augment a selected estate. insurance comprises: Transmission of sunshine through solids actual houses of chalcogenide glasses Glass creation cautious characterization of glass houses traditional lens fabrication--spherical surfaces Molding of unconventional aspheric lenses with diffractive surfaces Glass methods for different functions IR imaging bundles made up of chalcogenide glass fibers construction of infrared crystalline fabrics at AMI improvement of an automated ellipsometer approach at TI

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15. D. L. Mitchell, S. G. Bishop, and P. C. Taylor, J. Non. Cryst. Sol. 8−10, 231 (1972). 16. W. Kaiser and P. H. Keck, J. Appl. Phys. 28, 882 (1957). 17. W. Kaiser, P. H. Keck, and C. F. Lang, Phys. Rev. 101, 1264 (1956). 18. R. C. Newman and J. B. Willis, J. Phys. Chem. Solids 26, 373 (1965). 19. W. G. Spitzer, D. Kleinman, and D. Walch, Phys. Rev. 113, 127 (1959). 20. R. W. , 1991. 1 Historical Development The investigation of chalcogenide glasses as optical materials in infrared systems began with the rediscovery of arsenic trisulfide glass1,2 by R.

David Pearson19 of Bell Telephone Laboratories. Thus started a great worldwide effort to investigate chalcogenide glasses and their electronic properties. The purpose was to pursue a new family of inexpensive electronic devices based on amorphous semiconductors. The effort in this field far exceeded the effort directed toward optical applications. 21 Generally, the glasses used could be made conducting with applied voltage resulting in the formation of a crystalline filament path. Such glasses were not suitable for optical use and are not discussed in this book.

Such glasses were not suitable for optical use and are not discussed in this book. Our discussion concentrates on efforts in the United States to develop infrared optical materials, specifically, chalcogenide glasses from groups IVA, VA, and VIA from the periodic table. In 1966, the Air Force decided to fund a Research Program on Infrared Optical Materials at Central Research Laboratories at TI. There was a six-month delay in funding. During this time, Robert Patterson mapped out the glass forming region for the germaniumantimony-selenium system.

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