Optical Materials Characterization.
Abstract
The refractive index of fusion cast CaF2 was measured at room temperature over the wavelength range 0.2144 micrometers to 8.662 micrometers and the data were fitted to a Selmeier type equation. Measurements of refractive index of hot forged CaF2 were extended to the wavelength range 0.2024 micrometers to 0.2483 micrometers. Data are presented for dn/dT of single crystal specimens of CaF2, BaF2, reactive atmosphere processed (RAP) KC1 and KBr, LiF, NaF, and 2SrF2, and polycrystalline chemical vapor deposited (CVD) ZnSe and ZnS. The measurements were done by the method of Fizeau interferometry over the temperature range -180 deg to 200 deg C at the wavelengths 0.6328 micrometers, 1.15 micrometers, 3.39 micrometers and 10.6 micrometers. Data are presented for the refractive indices, the linear thermal expansion and dn/dT of Lexan and Plexiglas 55.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1977
- Accession Number
- ADA045095
Entities
People
- Albert R. Feldman
- Deane Horowitz
- Marilyn J. Dodge
- Roy M. Waxler
- Warren K. Gladden
Organizations
- National Institute of Standards and Technology