Accession Number : AD0782964

Title :   Light Induced Modulation of Absorption (LIMA) In Copper-Doped Single Crystals CdS Platelets. Part I. Experimental.

Descriptive Note : Final rept.,

Corporate Author : BALLISTIC RESEARCH LABS ABERDEEN PROVING GROUND MD

Personal Author(s) : Braerman,William F.

Report Date : JUN 1974

Pagination or Media Count : 57

Abstract : The study concerns experimental observations of induced modulated transmittance of a weak monochromatic light probe due to chopped laser excitation. The author varied the weak light probe wavelength, crystal temperature, laser excitation chopping frequency, and intensity. Also provided are luminescence and photoconductivity measurements; these are compared with the Light Induced Modulation of Absorption (LIMA) measurements. Results indicate that substantial changes in modulated transmittance occur. It is thought that the technique based on LIMA may well lead to a better understanding of trapping and recombination kinetics in semiconductors.

Descriptors :   *Cadmium sulfides, *Semiconductors, Band theory of solids, Photoconductivity, Luminescence, Single crystals, Absorption, Modulation, Laser beams, Gas lasers

Subject Categories : Optics
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE