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Proceedings Paper

CVC silicon carbide optical properties and systems
Author(s): Colby A. Foss Jr.
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Paper Abstract

The chemical vapor composites (CVC) process provides for the rapid manufacture of near net shape, reduced residual stress silicon carbide (SiC) suitable for high performance optics. The reduction or elimination of residual stress provides several key advantages: 1) increased growth rate, 2) high yields, and 3) near net shape deposition of complex geometries. Near net shape deposition allows for fabrication of spherical and aspherical optics without machining of the optical surface. Final surface figures of optical flats are typically better than 1/10λ (P-V) and 2-5Å surface roughness. A comparison of ultraviolet spectrum reflectance of CVC SiC and that of single crystal SiC is discussed. The complex optical constants of CVC SiC in the mid-infrared spectrum are also presented.

Paper Details

Date Published: 18 August 2005
PDF: 9 pages
Proc. SPIE 5868, Optical Materials and Structures Technologies II, 586806 (18 August 2005); doi: 10.1117/12.613944
Show Author Affiliations
Colby A. Foss Jr., Trex Enterprises Corp. Advanced Materials Group (United States)

Published in SPIE Proceedings Vol. 5868:
Optical Materials and Structures Technologies II
William A. Goodman, Editor(s)

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