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Proceedings Paper

Scatter and roughness measurements on optical surfaces exposed to space
Author(s): Dirk-Roger Schmitt; Helmut Swoboda; Helmut Rosteck
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Paper Abstract

Optical systems which are used in the low orbits of the US Space Shuttle can be destroyed within some hours due to degrading by atomic oxygen. To investigate these effects the Surface Effects Sample Monitor SESAM was developed. SESAM will be mounted on the ASTRO-SPAS satellite and will carry different sets of optical samples. Different samples will be exposed during the launching, orbit and landing phases. Before and after each exposition phase the surfaces are hermetically sealed. The scattering characteristic of the samples are measured with a modified TIS apparatus, which allows the investigation of bare transparent substrates. Further information on the surface characteristics are collected using Nomarski differential interference contrast microscopy to obtain highly resolving 2D-images.

Paper Details

Date Published: 1 December 1991
PDF: 7 pages
Proc. SPIE 1530, Optical Scatter: Applications, Measurement, and Theory, (1 December 1991); doi: 10.1117/12.50500
Show Author Affiliations
Dirk-Roger Schmitt, Deutsche Forschungsanstalt fuer Luft- und Raumfahrt e.V. (Germany)
Helmut Swoboda, Deutsche Forschungsanstalt fuer Luft- und Raumfahrt e.V. (Germany)
Helmut Rosteck, Deutsche Forschungsanstalt fuer Luft- und Raumfahrt e.V. (Germany)


Published in SPIE Proceedings Vol. 1530:
Optical Scatter: Applications, Measurement, and Theory
John C. Stover, Editor(s)

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