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

S. Raghu, F. D.M. Haldane

Research output: Contribution to journalArticlepeer-review

982 Scopus citations


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.

Original languageEnglish (US)
Article number033834
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number3
StatePublished - Sep 23 2008

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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