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

Jianlin Zhao | Zendy; Zhenwei Li | Zendy; Yang De-Xing | Zendy; Yanghua Ma | Zendy; Dongsheng Yang | Zendy

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

Author(s) -

Jianlin Zhao,

Zhenwei Li,

Yang De-Xing,

Yanghua Ma,

Dongsheng Yang

Publication year - 2004

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.53.3756

Subject(s) - photorefractive effect , electric field , coupling (piping) , crystal (programming language) , materials science , optics , coupling coefficient of resonators , intensity (physics) , field (mathematics) , enhanced data rates for gsm evolution , ion , physics , optoelectronics , telecommunications , computer science , pure mathematics , metallurgy , programming language , mathematics , quantum mechanics , resonator

The properties and applications of the photorefractive two-wave coupling in con gruent SBN:Cr(Sr0.61Ba0.39Nb2O.6:Cr)crystal under external dc e lectric 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 photore fractive two-wave coupling gain and response rapidity can be both increased,by applying appropriate external electric field to the crystal.Further study indica tes this electric response property of SBN:Cr crystal is useful to some applicat ions,such as improving the image edge-enhancement and the image edge-enhanceme nt joint-transform correlator based on the nonlinear energy transfer of photore fractive two-wave coupling in the crystal.

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