Saturable nonlinearity in photovoltaic-photorefractive crystals under open-circuit condition

被引：15

作者：

Guo, R ^{[1
]}

Ling, ZF ^{[1
]}

Chen, XH ^{[1
]}

Zhang, GQ ^{[1
]}

Zhang, XZ ^{[1
]}

Wen, HD ^{[1
]}

Jiang, Y ^{[1
]}

Liu, SM ^{[1
]}

机构：

[1] Nankai Univ, Coll Phys Sci, Tianjin 300071, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2000年 / 17卷 / 11期

关键词：

D O I：

10.1088/0256-307X/17/11/009

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that the refractive index change induced by a focused incident beam with an additional incoherent uniform illumination in photovoltaic-photorefractive crystals under open-circuit condition has a saturable nonlinearity form. The incoherent uniform background illumination can be used to increase the effective dark irradiance. The formation time of the photovoltaic soliton can be decreased by keeping the intensity of the soliton at ii higher value without over-saturation by use of the background illumination.

引用

页码：804 / 805

页数：2

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