Theory of incoherent self-focusing in biased photorefractive media

被引：292

作者：

Christodoulides, DN

Coskun, TH

Mitchell, M

Segev, M

机构：

[1] PRINCETON UNIV,DEPT ELECT ENGN,PRINCETON,NJ 08544

[2] PRINCETON UNIV,CTR PHOTON & OPTOELECT MAT,PRINCETON,NJ 08544

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.78.646

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A theory describing propagation and self-focusing of partially spatially incoherent light beams in nonlinear media is developed. It is shown that this process is effectively governed by an infinite set of coupled nonlinear Schrodinger-like equations, provided they are initially appropriately weighted with respect to the incoherent angular power spectrum of the source. The particular case of spatially incoherent beam propagation in biased photorefractive media is considered in detail. Numerical simulations indicate that spatial compression as well as self-trapped states are possible under appropriate conditions. Our results are in good agreement with recent experimental observations.

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收藏

页码：646 / 649

页数：4

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