Photorefractive two-beam coupling with applied radio-frequency fields: theory and experiment
- 1 July 1987
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America B
- Vol. 4 (7) , 1079-1082
- https://doi.org/10.1364/josab.4.001079
Abstract
An expression for the gain in photorefractive two-wave mixing when radio-frequency (rf) electric fields are applied to the material has been derived and compared with experiments in GaAs:Cr. A fit to the data yields a consistent value for the carrier diffusion length of 0.3 μm. The rf field method can be used to enhance the two-wave mixing gain and to measure the diffusion length in other photorefractive materials.Keywords
This publication has 11 references indexed in Scilit:
- Investigation of the photorefractive behavior of chrome-doped GaAs by using two-beam couplingOptics Letters, 1986
- Hole–electron competition in photorefractive gratingsOptics Letters, 1986
- Efficient unstationary holographic recording in photorefractive crystals under an external alternating electric fieldOptics Communications, 1985
- Two-wave mixing with an applied field and a moving gratingJournal of the Optical Society of America B, 1984
- Beam coupling in undoped GaAs at 106 μm using the photorefractive effectOptics Letters, 1984
- Two-wave mixing and energy transfer in BaTiO3 application to laser beamsteeringOptics Communications, 1984
- Holography, coherent light amplification and optical phase conjugation with photorefractive materialsPhysics Reports, 1982
- Coherent signal beam amplification in two-wave mixing experiments with photorefractive Bi12SiO20 crystalsOptics Communications, 1981
- Diffraction efficiency and energy transfer in two-wave mixing experiments with Bi12SiO20 crystalsApplied Physics A, 1981
- Holographic storage in electrooptic crystals. i. steady stateFerroelectrics, 1978