Anomalous Behaviour of Photorefractive Grating Erasure Owing to Existence of both Negative and Positive Carriers
ZHU Rong, LIU De-An, GUO Yuan-Jun, CHAI Zhi-Fang, LIU Li-Ren
Information Optics Laboratory, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
Anomalous Behaviour of Photorefractive Grating Erasure Owing to Existence of both Negative and Positive Carriers
ZHU Rong; LIU De-An; GUO Yuan-Jun;CHAI Zhi-Fang;LIU Li-Ren
Information Optics Laboratory, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
关键词 ：
42.40.Ht ,
42.40.Pa
Abstract ： In LiNbO3 :Fe, anomalous behaviour of grating erasure is observed with different wavelengths, i.e. rapid grating erasure in the short wavelength range, which deviates from the results predicted by the electron transport band model. The deviation is related to the coexistence of electrons and holes in photorefraction, and charge-transfer process including electrons and hole has been proposed. The electron and hole contributions to photoconductivity have been identified by experiments. We also give the theoretical dependence of electron photo-excitation coefficient S of the Fe centre on the wavelength.
Key words ：
42.40.Ht
42.40.Pa
出版日期: 2006-06-01
引用本文:
ZHU Rong; LIU De-An; GUO Yuan-Jun;CHAI Zhi-Fang;LIU Li-Ren. Anomalous Behaviour of Photorefractive Grating Erasure Owing to Existence of both Negative and Positive Carriers[J]. 中国物理快报, 2006, 23(6): 1462-1465.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2006/V23/I6/1462
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