Photorefractive nonlinearity of periodically poled ferroelectrics
Sturman, B., Aguilar, M., Agulló-López, F., Pruneri, V. and Kazansky, P.G. (1997) Photorefractive nonlinearity of periodically poled ferroelectrics. Journal of the Optical Society of America B, 14, (10), 2641-2649. (doi:10.1364/JOSAB.14.002641).
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Description/Abstract
We study theoretically the dependence of the photorefractive response of a periodically poled ferroelectric on the spatial frequency of light fringes, on the period of the domain inversion, and on its mark-to-space ratio. The photovoltaic effect, the drift of photoelectrons under an applied field, and their diffusion are considered as charge-transport mechanisms. Strong suppression of the photorefractive properties at low spatial frequencies (reduction of optical damage) together with retention of these properties in a region of short-fringe spacing are shown. We also found that the periodicity of the domain structure can produce a new kind of photorefractive parametric wave coupling. This coupling is characterized by a large gain factor for the waves propagating at angles that depend on the domain-inversion period. Finally, we discuss promising photorefractive experiments in periodically poled lithium niobate
| Item Type: | Article |
|---|---|
| ISSNs: | 1943-0620 (print) 1943-0639 (electronic) |
| Related URLs: | |
| Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | University Structure - Pre August 2011 > Optoelectronics Research Centre |
| Item ID: | 78020 |
| Date Deposited: | 11 Mar 2010 |
| Last Modified: | 20 Aug 2012 16:06 |
| Contributors: | Sturman, B. (Author) Aguilar, M. (Author) Agulló-López, F. (Author) Pruneri, V. (Author) Kazansky, P.G. (Author) |
| Date: | 1997 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/78020 |
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