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Applied Optics

Applied Optics


  • Vol. 24, Iss. 16 — Aug. 15, 1985
  • pp: 2660–2665

Low earth orbit environmental effects on osmium and related optical thin-film coatings

T. R. Gull, Howard Herzig, J. F. Osantowski, and A. R. Toft  »View Author Affiliations

Applied Optics, Vol. 24, Issue 16, pp. 2660-2665 (1985)

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A number of samples of optical thin film materials were flown on Shuttle flight STS-8 as part of an experiment to evaluate their interaction with residual atomic oxygen in low earth orbit. Osmium was selected because of its usefulness as a reflective optical coating for far-UV instruments and for confirmation of results from previous Shuttle flights in which such coatings disappeared. Reflectance data and photographic evidence are presented to support the hypothesis that the osmium disappearance is due to reaction with oxygen to form a volatile oxide. Platinum and iridium, which were included for comparison, fared much better.

© 1985 Optical Society of America

Original Manuscript: May 11, 1985
Published: August 15, 1985

T. R. Gull, Howard Herzig, J. F. Osantowski, and A. R. Toft, "Low earth orbit environmental effects on osmium and related optical thin-film coatings," Appl. Opt. 24, 2660-2665 (1985)

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  1. G. Hass, W. R. Hunter, “New Developments in Vacuum-Ultraviolet Reflecting Coatings for Space Astronomy,” in Space Optics, Proceedings, Ninth International Congress of the International Commission for Optics. B. J. Thompson, R. R. Shannon, Eds. (National Academy of Sciences, Washington, D.C., 1974), pp. 525–553.
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