CVC silicon carbide optical properties and systems

Colby A. Foss Jr.

doi:10.1117/12.613944

18 August 2005 CVC silicon carbide optical properties and systems

Colby A. Foss Jr.

Proceedings Volume 5868, Optical Materials and Structures Technologies II; 586806 (2005) https://doi.org/10.1117/12.613944
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

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.

Citation Download Citation

Colby A. Foss Jr. "CVC silicon carbide optical properties and systems", Proc. SPIE 5868, Optical Materials and Structures Technologies II, 586806 (18 August 2005); https://doi.org/10.1117/12.613944

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