Investigation of window materials for high power CO/sub 2/ gas lasers. Final report, 1 Jul 1972--31 Dec 1974

Technical Report · Thu May 01 04:00:00 EDT 1975

OSTI ID:7346475

Mitra, S S

Infrared absorption by multiphonon processes in the transparent regime of solids has been treated by lattice dynamics. Frequency and temperature dependence is predicted and compared with experimental data on alkali halides and alkaline earth fluorides. Effects of molecular impurities in KCl in 10 micrometer region was investigated. The optical properties (vibrational and electronic), relevant to high power laser window applications, of amorphous materials has been investigated emphasizing the changes relative to the ordered state resulting from the structural disorder. The temperature, pressure and stress dependence of electronic band gap and the refractive index of several candidate materials are theoretically calculated.

• Research Organization: OES, Inc., Long Beach, Calif. (USA)
• OSTI ID: 7346475
• Report Number(s): AD-A-012553; URI-9804-4261
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ALKALI METAL COMPOUNDS
CARBON DIOXIDE LASERS
CHLORIDES
CHLORINE COMPOUNDS
ELECTROMAGNETIC RADIATION
FLUORIDES
FLUORINE COMPOUNDS
GAS LASERS
HALIDES
HALOGEN COMPOUNDS
INFRARED RADIATION
LASERS
OPENINGS
POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
RADIATIONS
WINDOWS