Accession Number:

AD1040098

Title:

Temporal Dynamics of Two Beam Coupling and the Origin of Compensation Photorefractive Gratings in Sn2P2S6:Sb (Postprint)

Descriptive Note:

Journal Article - Open Access

Corporate Author:

National Academy of Sciences Kyiv Ukraine

Report Date:

2017-03-29

Pagination or Media Count:

13.0

Abstract:

Photorefractive effect in Sn2P2S6 SPS is caused by a spatial redistribution of both positively charged and negatively charged carriers, which leads to the formation of two out-of-phase space charge gratings that partially compensate each other in the steady state. The unusual intensity dependence of the compensation grating buildup time is reported in this article for antimony doped SPS it is explained by the thermal excitation of electrons into conduction band from the optically recharged Sb3 Sb2 impurity ions.

Subject Categories:

  • Optics
  • Ceramics, Refractories and Glass

Distribution Statement:

APPROVED FOR PUBLIC RELEASE