Accession Number:

ADP006744

Title:

Polarization Properties of Bi sub 12 Sio sub 20 Crystals,

Descriptive Note:

Corporate Author:

DNEPROPETROVSK STATE UNIV (USSR) DEPT OF PHYSICS

Report Date:

1992-05-22

Pagination or Media Count:

4.0

Abstract:

Photorefractive crystals Bi12SiO20 BSO are particular interest for applications such as spatial light modulators, image amplification and the like. Some properties are connected to distribution of space charge induced in the crystal both by an applied or intrinsic electric field and illumination. Many electrical and optical properties as BSO dependence on density and king of localized states. In these paper the results of study of both photoelectret and thermoelectret state PES and TES and intrinsic charge distribution as were are presented. The many features of electrets state was carried out by thermally stimulated depolarization TSD in temperature range 300-800 K. The potential distribution was determined by point electrical probe method - with 30 um accuracy. The thermo and photoelectrets was formed by polarization in external electric field U sub p 0.01-1 kV in temperature range 300-600 K in dark or under illumination lambda sub p 0.38-0.63 microns.

Subject Categories:

  • Optics
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE