Nonlinear diffraction in photonic graphene

被引：13

作者：

Ablowitz, Mark J. ^{[2
]}

Zhu, Yi ^{[1
]}

机构：

[1] Tsinghua Univ, Zhou Pei Yuan Ctr Appl Math, Beijing 100084, Peoples R China

[2] Univ Colorado, Dept Appl Math, Boulder, CO 80309 USA

来源：

OPTICS LETTERS | 2011年 / 36卷 / 19期

基金：

美国国家科学基金会;

关键词：

LATTICES;

D O I：

10.1364/OL.36.003762

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The nonlinear (NL) diffraction of wave packets in honeycomb lattices near Dirac points is studied. Strong nonlinearity can significantly deform the diffraction patterns from conical to triangular structure. This is described by a mean field discrete NL Dirac system and in the continuous limit by a higher-order NL Dirac system, which, in turn, is consistent with the trigonal warping of the dispersion relation. The anticontinuous limit is also examined and similar properties are obtained. (C) 2011 Optical Society of America

引用

页码：3762 / 3764

页数：3

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