Two-dimensional optical lattice solitons

被引：219

作者：

Efremidis, NK ^{[1
]}

Hudock, J

Christodoulides, DN

Fleischer, JW

Cohen, O

Segev, M

机构：

[1] Univ Cent Florida, CREOL, Sch Opt, Orlando, FL 32816 USA

[2] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 21期

基金：

以色列科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.91.213906

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study various families of two-dimensional discrete or lattice solitons, and show that they are possible only when their power level exceeds a critical threshold. In addition, we show that gap-lattice solitons exist only when the lattice possesses a complete 2D band gap. Our results suggest that these conditions are universally valid, irrespective of the nature of the nonlinearity or the specific structure of the index lattice. The analysis explains fundamental aspects of behavior of two-dimensional discrete solitons that have been very recently observed in photosensitive optical crystals.

引用

页数：4

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