Photorefractive effects induced by picosecond light pulses in reduced KNbO_3
- 1 August 1992
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America B
- Vol. 9 (8) , 1480-1487
- https://doi.org/10.1364/josab.9.001480
Abstract
We discuss the writing of a photorefractive grating with pulses much shorter than the diffusion time of photoexcited charge carriers and compare the results with experiments performed in reduced KNbO3 crystals. From the grating-spacing dependence of the observed buildup time and diffraction efficiency we show that the lifetime of the photoexcited electrons is approximately 4 ns and that the mobility of these electrons before trapping is 0.4 ± 0.2 cm2/(V s).Keywords
This publication has 36 references indexed in Scilit:
- Photorefractive properties ofPhysical Review B, 1991
- Build-up and dark decay of transient photorefractive gratings in reduced KNbO3Optics Communications, 1990
- Time resolved investigation of transient photorefractive gratings in KNbO3Ferroelectrics, 1990
- Formation, decay, and erasure of photorefractive gratings written in barium titanate by picosecond pulsesJournal of the Optical Society of America B, 1989
- Reduced KNbO3 crystals for fast photorefractive nonlinear opticsApplied Physics Letters, 1987
- Analysis of the decay dynamics of laser-induced gratings in LiNbO_3Journal of the Optical Society of America B, 1985
- Photorefractive-index gratings formed by nanosecond optical pulses in BaTiO_3Optics Letters, 1981
- Efficient pulsed photorefractive process in LiNbO3:Fe for optical storage and deflectionIEEE Journal of Quantum Electronics, 1980
- Efficient hologram recording in LiNbO3 : Fe using optical pulsesApplied Physics Letters, 1979
- Intrinsic photorefractive effect of LiNbO3Applied Physics A, 1978