Self-bending of photorefractive solitons

被引：2

作者：

Petter, J. ^{[1
]}

Weilnau, C. ^{[1
]}

Denz, C. ^{[1
]}

Stepken, A. ^{[2
]}

Kaiser, F. ^{[2
]}

机构：

[1] Light- and Particle Optics, Inst. Appl. Phys., Darmstadt U., D-64289 Darmstadt, Germany

[2] Theoretical Nonlinear Dynamics, Inst. Appl. Phys., Darmstadt U., D-64289 Darmstadt, Germany

来源：

Optics Communications | 1999年 / 170卷 / 04期

关键词：

Computer simulation - Light refraction - Nonlinear optics - Photorefractive materials;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Self-bending of photorefractive solitons is caused by diffusion in photorefractive crystals and becomes an important effect when the beam size is in the range of the charge carriers diffusion length. In this paper we present an experimental and numerical examination of the beam bending dependence on relevant parameters such as the applied electric field and the beam intensity. We demonstrate that the bending dependence on the electric field in the low saturation regime has the form of a square function at low values of the field and becomes linear for higher values. For stronger saturation the curve gets the form of a square root function. The bending dependence on the beam intensity has a maximum at defined intensity. The experimental data are compared with numerical simulations, giving a good qualitative agreement.

引用

页码：291 / 297