Accession Number:

ADA014867

Title:

IR Window Studies.

Descriptive Note:

Semiannual technical rept. no. 1,

Corporate Author:

UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES ELECTRONIC SCIENCES LAB

Report Date:

1975-03-15

Pagination or Media Count:

102.0

Abstract:

Crystals of CdTe doped with P, Al, AlSb and others were grown. Local mode absorption was measured for these crystals and for CdTeAlCu, Ag, Au. Indium precipitates from CdTe if cooled under high pressure of cadmium. The defect structure of CVD ZnSe was determined by electron microscopy, electron microprobe, cathodoluminescence scanning microscope Precipitates of Se, dislocations, twins and stacking faults are observed. NaCl exposed to active oxygen develops a surface layer with characteristic absorption believed to be due to Cl03. Further support is found for the attribution of the residual infrared absorption in KBr to Br0x ion. Thermal lensing was studied experimentally to give dndt. For CdTe dndt 0 was found. Theoretical considerations for the effects of residual T-independent birefringence homogeneous or inhomogeneous, grain boundaries, stresses and strains on thermal lensing are given. An analysis is given for the refractive index of ZnSe and LiF, and apparatus for the accurate measurement of dndt is set up.

Subject Categories:

  • Lasers and Masers
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE