Optical Materials for 2 to 6 micrometers and 10.6 micrometers High Power Lasers.
Abstract
Several optical properties of materials suitable as components useable with CO2 with ( 10.6 micrometers) and other chemical lasers (2 to 6 micrometers) are considered. Frequency and temperature dependence of absorption coefficient in the transparent regime of alkaline earth fluorides and mixed fluorides have been measured and understood on the basis of current theories and their desirability as window materials in the 2 to 6 micrometers region has been assessed. Lattic dynamics of mixed crystals and structurally disordered solids have been considered in the context of their phonon optical properties. The optical properties and electronic structure of amorphous semiconductors have been investigated emphasizing the changes relative to the ordered state resulting from the structural disorder. Also considered here are the properties, e.g., elasto-optic coefficients, responsible for beam distortion at high photon flux in an optical component. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1977
- Accession Number
- ADA075234
Entities
People
- Shashanka S. Mitra
Organizations
- University of Rhode Island