Topological photonics

Tomoki Ozawa, Hannah M. Price, Alberto Amo, Nathan Goldman, Mohammad Hafezi, Ling Lu, Mikael C. Rechtsman, David Schuster, Jonathan Simon, Oded Zilberberg, and Iacopo Carusotto
Rev. Mod. Phys. 91, 015006 – Published 25 March 2019

Abstract

Topological photonics is a rapidly emerging field of research in which geometrical and topological ideas are exploited to design and control the behavior of light. Drawing inspiration from the discovery of the quantum Hall effects and topological insulators in condensed matter, recent advances have shown how to engineer analogous effects also for photons, leading to remarkable phenomena such as the robust unidirectional propagation of light, which hold great promise for applications. Thanks to the flexibility and diversity of photonics systems, this field is also opening up new opportunities to realize exotic topological models and to probe and exploit topological effects in new ways. This article reviews experimental and theoretical developments in topological photonics across a wide range of experimental platforms, including photonic crystals, waveguides, metamaterials, cavities, optomechanics, silicon photonics, and circuit QED. A discussion of how changing the dimensionality and symmetries of photonics systems has allowed for the realization of different topological phases is offered, and progress in understanding the interplay of topology with non-Hermitian effects, such as dissipation, is reviewed. As an exciting perspective, topological photonics can be combined with optical nonlinearities, leading toward new collective phenomena and novel strongly correlated states of light, such as an analog of the fractional quantum Hall effect.

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  • Received 12 February 2018

DOI:https://doi.org/10.1103/RevModPhys.91.015006

© 2019 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

Tomoki Ozawa

  • Interdisciplinary Theoretical and Mathematical Sciences Program (iTHEMS), RIKEN, Wako, Saitama 351-0198, Japan, Center for Nonlinear Phenomena and Complex Systems, Université Libre de Bruxelles, CP 231, Campus Plaine, B-1050 Brussels, Belgium, and INO-CNR BEC Center and Dipartimento di Fisica, Università di Trento, I-38123 Povo, Italy

Hannah M. Price

  • School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom and INO-CNR BEC Center and Dipartimento di Fisica, Università di Trento, I-38123 Povo, Italy

Alberto Amo

  • Université de Lille, CNRS, UMR 8523—PhLAM—Laboratoire de Physique des Lasers Atomes et Molécules, F-59000 Lille, France

Nathan Goldman

  • Center for Nonlinear Phenomena and Complex Systems, Université Libre de Bruxelles, CP 231, Campus Plaine, B-1050 Brussels, Belgium

Mohammad Hafezi

  • Joint Quantum Institute, Institute for Research in Electronics and Applied Physics, Department of Electrical and Computer Engineering, Department of Physics, University of Maryland, College Park, Maryland 20742, USA

Ling Lu

  • Institute of Physics, Chinese Academy of Sciences/Beijing National Laboratory for Condensed Matter Physics, Beijing 100190, China and Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China

Mikael C. Rechtsman

  • Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA

David Schuster

  • The James Franck Institute and Department of Physics, University of Chicago, Chicago, Illinois 60637, USA

Jonathan Simon

  • The James Franck Institute and Department of Physics, University of Chicago, Chicago, Illinois 60637, USA

Oded Zilberberg

  • Institute for Theoretical Physics, ETH Zurich, 8093 Zurich, Switzerland

Iacopo Carusotto

  • INO-CNR BEC Center and Dipartimento di Fisica, Università di Trento, I-38123 Povo, Italy

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Issue

Vol. 91, Iss. 1 — January - March 2019

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