Analogs of quantum-Hall-effect edge states in photonic crystals

被引：1061

作者：

Raghu, S. ^{[1
]}

Haldane, F. D. M. ^{[2
]}

机构：

[1] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

[2] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

来源：

PHYSICAL REVIEW A | 2008年 / 78卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevA.78.033834

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Photonic crystals built with time-reversal-symmetry-breaking Faraday-effect media can exhibit chiral edge modes that propagate unidirectionally along boundaries across which the Faraday axis reverses. These modes are precise analogs of the electronic edge states of quantum-Hall-effect (QHE) systems, and are also immune to backscattering and localization by disorder. The Berry curvature of the photonic bands plays a role analogous to that of the magnetic field in the QHE. Explicit calculations demonstrating the existence of such unidirectionally propagating photonic edge states are presented.

引用

页数：21

共 25 条

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