Magnetic-Optic Effect-Based Topological State: Realization and Application

Xinyue Wang, Wen Zhao, Hongyu Zhang, Sayed Elshahat, Cuicui Lu*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

16 Citations (Scopus)

Abstract

The topological state in photonics was first realized based on the magnetic-optic (MO) effect and developed rapidly in recent years. This review summarizes various topological states. First, the conventional topological chiral edge states, which are accomplished in periodic and aperiodic systems based on the MO effect, are introduced. Some typical novel topological states, including valley-dependent edge states, helical edge states, antichiral edge states, and multimode edge states with large Chern numbers in two-dimensional and Weyl points three-dimensional spaces, have been introduced. The manifest point of these topological states is the wide range of applications in wave propagation and manipulation, to name a few, one-way waveguides, isolator, slow light, and nonreciprocal Goos–Hänchen shift. This review can bring comprehensive physical insights into the topological states based on the MO effect and provides reference mechanisms for light one-way transmission and light control.

Original languageEnglish
Article number816877
JournalFrontiers in Materials
Volume8
DOIs
Publication statusPublished - 21 Jan 2022

Keywords

  • magnetic-optic effect
  • one-way transmission
  • optical system
  • topological edge states
  • waveguide

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