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27 December 2001 Results for silicon lightweight mirrors (SLMS)
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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.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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);

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