Holographic light scattering in centrosymmetric sodium nitroprusside upon generation of light-induced metastable states
Abstract
The phenomenon of holographic light scattering in centrosymmetric crystals of sodiumnitroprusside is investigated by analyzing (1) the effect of light polarization and wavelength of pump- and readout beams, (2) the angular intensity distribution, and (3) the kinetics of scattered light. It is shown that the scattering phenomenon and the corresponding properties can be entirely explained by diffraction processes of the pump beam from parasitically recorded slanted phase gratings without assuming any beam-coupling processes. The kinetics originates from the nonlinear photorefractive recording mechanism. Further we present an approach for three-wave interaction including diffraction processes at higher harmonics, that explains the temporal build-up of wide-angle scattering in media with a nonlinear photorefractive response.
- Publication:
-
Physical Review B
- Pub Date:
- May 2006
- DOI:
- 10.1103/PhysRevB.73.205113
- Bibcode:
- 2006PhRvB..73t5113I
- Keywords:
-
- 42.40.-i;
- 42.65.Pc;
- 42.70.Ln;
- 78.35.+c;
- Holography;
- Optical bistability multistability and switching including local field effects;
- Holographic recording materials;
- optical storage media;
- Brillouin and Rayleigh scattering;
- other light scattering