Photophysics, Laser Chemistry

Applied physics

, Volume 24, Issue 2, pp 131-138

First online:

Diffraction efficiency and energy transfer in two-wave mixing experiments with Bi12SiO20 crystals

  • A. MarrakchiAffiliated withLaboratoire Central de Recherche, Thomson CSF, Domaine de Corbeville
  • , J. P. HuignardAffiliated withLaboratoire Central de Recherche, Thomson CSF, Domaine de Corbeville
  • , P. GünterAffiliated withLaboratory of Solid State Physics E.T.H. Hönggerberg, Swiss Federal Institute of Technology

Rent the article at a discount

Rent now

* Final gross prices may vary according to local VAT.

Get Access

Abstract

The diffraction efficiency and energy transfer are investigated in photorefractive Bi12SiO20 crystals (BSO). Dependence on fringe spacing, electric fields, light intensity and rise-time constants are reported. The optimum crystallographic orientation for each effect is determined for vertical polarization of the recording beams. It is shown that beam coupling is a very sensitive phenomenon in BSO crystals where charge transport lengths are equivalent to usual fringe spacings. Experimental results are interpreted on the basis of the nonlinear theory of self-diffraction developed by Kukhtarev et al. [10].

PACS

42.30.-d 42.40.-i 42.70.-a 72.40.tw 78.20.Jq