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Photonic Aharonov-Bohm Effect Based on Dynamic Modulation

Kejie Fang, Zongfu Yu, and Shanhui Fan
Phys. Rev. Lett. 108, 153901 – Published 12 April 2012
Physics logo See Synopsis: A New Phase for Photonics
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Abstract

We show that when the refractive index of a photonic system is harmonically modulated, the phase of the modulation introduces an effective gauge potential for photons. This effective gauge potential can be used to create a photonic Aharonov-Bohm effect. We show that the photonic Aharonov-Bohm effect provides the optimal mechanism for achieving complete on-chip nonmagnetic optical isolation.

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  • Received 19 October 2011

DOI:https://doi.org/10.1103/PhysRevLett.108.153901

© 2012 American Physical Society

Synopsis

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A New Phase for Photonics

Published 12 April 2012

A waveguide’s dielectric properties could result in an effective gauge field for photons even though they have no charge.

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Authors & Affiliations

Kejie Fang

  • Department of Physics, Stanford University, Stanford, California 94305, USA

Zongfu Yu and Shanhui Fan

  • Department of Electrical Engineering, Stanford University, Stanford, California 94305, USA

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Issue

Vol. 108, Iss. 15 — 13 April 2012

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