Optical materials for 2 to 6 micrometers and 10. 6 micrometers high power lasers. Final report, 6 April 1975-30 September 1976

Technical Report · Tue Feb 01 04:00:00 EST 1977

OSTI ID:5413660

Mitra, S S

Several optical properties of materials suitable as components useable with CO/sub 2/ 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. Lattice 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.

• Research Organization: Rhode Island Univ., Kingston (USA). Dept. of Electrical Engineering
• OSTI ID: 5413660
• Report Number(s): AD-A-075234
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ABSORPTION
CARBON DIOXIDE LASERS
CHEMICAL LASERS
CRYSTALS
ELEMENTS
FLUORIDES
FLUORINE COMPOUNDS
GAS LASERS
GERMANIUM
HALIDES
HALOGEN COMPOUNDS
LASER MATERIALS
LASERS
METALS
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
SEMIMETALS
SILICON