Steady-state spatial solitons in low-amplitude regime in biased photorefractive-photovoltaic crystals

被引：0
|
作者：
Lu, K.Q. [1 ]
Zhang, Y.P. [1 ]
Tang, T.T. [1 ]
Hou, X. [1 ]
Wu, H.C. [1 ]
机构：
[1] Dept. of Electron. Sci. and Technol., Xi'an Jiaotong Univ., Xi'an 710049, China
来源：
| 2001年 / Science Press卷 / 10期
关键词：
Photorefractive materials - Photovoltaic effects;
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学科分类号：
摘要：
A theory of the space-charge field is improved in biased photorefractive-photovoltaic crystals. Steady-state spatial solitons are obtained in the low-amplitude regime in biased photorefractive-photovoltaic crystals. When photovoltaic effect is neglected, these solitons are screening solitons, and their space-charge field is the space-charge field of screening solitons. When the external field is absent, these solitons are photovoltaic solitons for the closed or the open circuit and we also predict that gray solitons exist in photorefractive-photovoltaic crystals, and their space-charge field is the space-charge field of photovoltaic solitons.
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