Influence of external electric field on photorefractive two-wave coupling in SBN:Cr crystal and its applications

Jian Lin Zhao; Zhen Wei Li; De Xing Yang; Yang Hua Ma; Dong Sheng Yang

Influence of external electric field on photorefractive two-wave coupling in SBN:Cr crystal and its applications

Jian Lin Zhao, Zhen Wei Li, De Xing Yang, Yang Hua Ma, Dong Sheng Yang

School of Physical Science and Technology

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The properties and applications of the photorefractive two-wave coupling in congruent SBN:Cr (Sr_0.61Ba_0.39Nb₂O₆:Cr) crystal under external dc electric field are experimentally investigated in this paper. The variation of the intensity gain coefficient of the two-wave coupling with the external field is analyzed, and the measurement results are presented. It is found that the photorefractive two-wave coupling gain and response rapidity can be both increased, by applying appropriate external electric field to the crystal. Further study indicates this electric response property of SBN:Cr crystal is useful to some applications, such as improving the image edge-enhancement and the image edge-enhancement joint-transform correlator based on the nonlinear energy transfer of photorefractive two-wave coupling in the crystal.

Original language	English
Pages (from-to)	3756-3760
Number of pages	5
Journal	Wuli Xuebao/Acta Physica Sinica
Volume	53
Issue number	11
State	Published - Nov 2004

Keywords

Edge-enhancement
Joint-transform correlator
Photorefractive two-wave coupling
SBN:Cr crystal

Cite this

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title = "Influence of external electric field on photorefractive two-wave coupling in SBN:Cr crystal and its applications",

abstract = "The properties and applications of the photorefractive two-wave coupling in congruent SBN:Cr (Sr0.61Ba0.39Nb2O6:Cr) crystal under external dc electric field are experimentally investigated in this paper. The variation of the intensity gain coefficient of the two-wave coupling with the external field is analyzed, and the measurement results are presented. It is found that the photorefractive two-wave coupling gain and response rapidity can be both increased, by applying appropriate external electric field to the crystal. Further study indicates this electric response property of SBN:Cr crystal is useful to some applications, such as improving the image edge-enhancement and the image edge-enhancement joint-transform correlator based on the nonlinear energy transfer of photorefractive two-wave coupling in the crystal.",

keywords = "Edge-enhancement, Joint-transform correlator, Photorefractive two-wave coupling, SBN:Cr crystal",

author = "Zhao, {Jian Lin} and Li, {Zhen Wei} and Yang, {De Xing} and Ma, {Yang Hua} and Yang, {Dong Sheng}",

year = "2004",

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journal = "Wuli Xuebao/Acta Physica Sinica",

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publisher = "Institute of Physics, Chinese Academy of Sciences",

number = "11",

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T1 - Influence of external electric field on photorefractive two-wave coupling in SBN:Cr crystal and its applications

AU - Zhao, Jian Lin

AU - Li, Zhen Wei

AU - Yang, De Xing

AU - Ma, Yang Hua

AU - Yang, Dong Sheng

PY - 2004/11

Y1 - 2004/11

N2 - The properties and applications of the photorefractive two-wave coupling in congruent SBN:Cr (Sr0.61Ba0.39Nb2O6:Cr) crystal under external dc electric field are experimentally investigated in this paper. The variation of the intensity gain coefficient of the two-wave coupling with the external field is analyzed, and the measurement results are presented. It is found that the photorefractive two-wave coupling gain and response rapidity can be both increased, by applying appropriate external electric field to the crystal. Further study indicates this electric response property of SBN:Cr crystal is useful to some applications, such as improving the image edge-enhancement and the image edge-enhancement joint-transform correlator based on the nonlinear energy transfer of photorefractive two-wave coupling in the crystal.

AB - The properties and applications of the photorefractive two-wave coupling in congruent SBN:Cr (Sr0.61Ba0.39Nb2O6:Cr) crystal under external dc electric field are experimentally investigated in this paper. The variation of the intensity gain coefficient of the two-wave coupling with the external field is analyzed, and the measurement results are presented. It is found that the photorefractive two-wave coupling gain and response rapidity can be both increased, by applying appropriate external electric field to the crystal. Further study indicates this electric response property of SBN:Cr crystal is useful to some applications, such as improving the image edge-enhancement and the image edge-enhancement joint-transform correlator based on the nonlinear energy transfer of photorefractive two-wave coupling in the crystal.

KW - Edge-enhancement

KW - Joint-transform correlator

KW - Photorefractive two-wave coupling

KW - SBN:Cr crystal

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M3 - 文章

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JO - Wuli Xuebao/Acta Physica Sinica

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Influence of external electric field on photorefractive two-wave coupling in SBN:Cr crystal and its applications

Abstract

Keywords

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