Results for silicon lightweight mirrors (SLMS)

Marc T. Jacoby; William A. Goodman; David A. Content

doi:10.1117/12.453655

27 December 2001 Results for silicon lightweight mirrors (SLMS)

Marc T. Jacoby, William A. Goodman, David A. Content

Author Affiliations +

Proceedings Volume 4451, Optical Manufacturing and Testing IV; (2001) https://doi.org/10.1117/12.453655
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

Schafer Corporation is manufacturing silicon lightweight mirrors (SLMS) for both cryogenic and high-energy laser applications. SLMS are quickly and inexpensively super- polishable, stiff and lightweight, have superior properties at cryogenic temperatures, and do not out-gas. This paper presents results of the cryogenic testing of a 6-inch diameter flat SLM at NASA GSFC. Testing was done initially with the SLM integrated into a Schafer designed, Industrieanlagen-Betriebsgesellschaft (IABG) produced carbon fiber reinforced silicon carbide (C/SiC) optical mount and then later, with the SLM attached directly to the cryostat cold finger. The advantage in using a C/SiC optical mount is that the so-called A-3 formulation has a near-perfect CTE match with silicon.

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Marc T. Jacoby, William A. Goodman, and David A. Content "Results for silicon lightweight mirrors (SLMS)", Proc. SPIE 4451, Optical Manufacturing and Testing IV, (27 December 2001); https://doi.org/10.1117/12.453655

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