Optical Mirror Coated with Organic Superconducting Material.
Patent, Filed 3 Nov 86, patented 16 Aug 88,
DEPARTMENT OF THE AIR FORCE WASHINGTON DC
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An optical mirror has enhanced reflectivity and reduced thermal distortions when it is composed of a substrate coated with a reflective coating made of an organic superconducting material. The substrate is best constructed of materials which have the most favorable thermal expansion and thermal conduction characteristics at temperatures near 0 K. such as silicon, diamond, copper, and sapphire. The reflective coating is only a few microns thick and composed of organometallic compounds and is cooled to superconducting or cryogenic temperatures of less than 100 K. Patents. mjm
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