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

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.

Citation Download Citation

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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