Bl. Liang et al., Effect of the reading beam polarization an the diffraction efficiency of photorefractive volume grating in Ce : KNSBN, OPTIK, 111(1), 2000, pp. 1-4
The diffraction efficiency of volume grating written by two-wave mixing in
Ce:KNSBN photorefractive crystal as a function of the writing beam ratio fo
r different polarized reading beam is studied. Due to the energy transfer,
the diffraction efficiency strongly depends on the polarization and the inc
ident direction of the reading beam. The modified coupled-wave theory fitti
ng results are coincident with the experimental data quite well.