CVC Silicon Carbide Optical Properties and Systems (Preprint)
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 l/lO delta (P-V) and a 2-5A 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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 29, 2005
- Accession Number
- ADA458382
Entities
People
- Colby A. Foss Jr.