Photonic Aharonov-Bohm effect based on dynamic modulation |
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Authors: | Fang Kejie Yu Zongfu Fan Shanhui |
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Affiliation: | Department of Physics, Stanford University, Stanford, California 94305, USA. |
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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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