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Proceedings Paper

Preliminary Performance Data On An Improved Optical Black For Infrared Use
Author(s): Stephen M. Pompea; Derek W. Bergener; Donald F. Shepard; William L. Wolfe
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Paper Abstract

The Martin Black process has been used to coat baffles on a wide variety of visible and ultraviolet range instruments. Its infrared applications include baffles for the Infrared Astronomy Satellite and the Spacelab 2 Infrared Telescope. Because of the increased emphasis on stray light suppression in the infrared, a series of experiments on the Martin Black process were conducted with the objective of better understanding the effects of various processing parameters on obtaining a blacker infrared surface. These experiments resulted in the creation of an infrared absorbing surface, called Infrablack, which retains the excellent visible absorption properties of its predecessor and has increased infrared absorption. We report here measurements made on the new surface that characterize its optical properties in the infrared. These measurements represent the results of only the first stage of our improvement program. Data are presented on the specular and hemispherical reflectivity and the BRDF (Bidirectional Reflectance Distribution Function) of the Infrablack. The measurements to date support the belief that the Infrablack surface can be made even more absorbent in the infrared in the next phase of the process improve-ment.

Paper Details

Date Published: 18 September 1983
PDF: 8 pages
Proc. SPIE 0400, New Optical Materials, (18 September 1983); doi: 10.1117/12.935489
Show Author Affiliations
Stephen M. Pompea, Martin Marietta Denver Aerospace (United States)
Colorado State University (United States)
Derek W. Bergener, Martin Marietta Denver Aerospace (United States)
Donald F. Shepard, Martin Marietta Denver Aerospace (United States)
William L. Wolfe, University of Arizona (United States)

Published in SPIE Proceedings Vol. 0400:
New Optical Materials
Solomon Musikant; Josette Dupuy, Editor(s)

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