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Photorefractive Image Amplification and Beam Fanning with Inclusion of Random Volume Scattering |
| XIE Ping;WANG Peng-ye;DAI Jiari-hua;ZHANG Hong-jun |
| Laboratory of Optical Physics, Institute of Physics & Center for Condensed Matter Physics, Chinese Acaderr1.v of Sciences, Beijing 100080 |
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| Cite this article: |
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XIE Ping, WANG Peng-ye, DAI Jiari-hua et al 1997 Chin. Phys. Lett. 14 908-911 |
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Abstract Photorefractive effects, such as the image amplification and the beam fanning, can be described by a set of multivariable Langevin equations with inclusion of the random-phased volume scattering due to the inhomogeneities and/or defects in the crystal. The image amplification by two-wave-coupling configuration was studied analytically in the undepleted-pump approximation and numerically. It was found that the volume scattering can generate the beam fanning, as the surface scattering does.
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| Keywords:
42.65.Hw
61.72.Qq
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Published: 01 December 1997
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| PACS: |
42.65.Hw
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(Phase conjugation; photorefractive and Kerr effects)
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61.72.Qq
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(Microscopic defects (voids, inclusions, etc.))
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