Accession Number:

AD0743115

Title:

Triatomic Centrosymmetric Crystals

Descriptive Note:

Final rept. 1 Apr 1971-31 Mar 1972

Corporate Author:

WESTINGHOUSE ELECTRIC CORP PITTSBURGH PA

Personal Author(s):

• Roland, George W.
• Isaacs, Thelma J.
• Steinbruegge, Kenneth B.
• Mazelsky, Robert
• Rubenstein, Martin

Report Date:

1972-05-31

Pagination or Media Count:

35.0

Abstract:

A large number of sulfosalt compounds was investigated to determine the usefulness of such materials as infrared window materials, particularly at 10.6 micrometers. Polycrystalline synthesis were followed in a few instances by crystal-growth experiments and determination of absorption coefficients. Of the many materials examined, TlInS2, TlGaSe2, and TlAsSe3 show most promise as window materials in fact, the best measured absorption coefficient for Fl3AsSe3 0.016cm is the lowest ever measured on a material of this type. Particularly for Tl3AsSe3, it propagation through the crystal.

Descriptors:

• *INFRARED LASERS
• *GAS LASERS
• *INFRARED WINDOWS
• OPTICAL PROPERTIES
• INFRARED OPTICAL MATERIALS
• SULFIDES
• SELENIDES
• THALLIUM COMPOUNDS
• INDIUM COMPOUNDS
• GALLIUM COMPOUNDS
• CRYSTAL GROWTH
• ARSENIDES
• ABSORPTION SPECTRA

Subject Categories:

• Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE