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arXiv · 1404.4863

Coherent optical non-reciprocity in axisymmetric resonators

Erik J. Lenferink·Guohua Wei·Nathaniel P. Stern
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Abstract

We describe an approach to optical non-reciprocity that exploits the local helicity of evanescent electric fields in axisymmetric resonators. By interfacing an optical cavity to helicity-sensitive transitions, such as Zeeman levels in a quantum dot, light transmission through a waveguide becomes direction-dependent when the state degeneracy is lifted. Using a linearized quantum master equation, we analyze the configurations that exhibit non-reciprocity, and we show that reasonable parameters from existing cavity QED experiments are sufficient to demonstrate a coherent non-reciprocal optical isolator operating at the level of a single photon.

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Erik J. Lenferink, Guohua Wei, Nathaniel P. Stern. 2014-04-18. Coherent optical non-reciprocity in axisymmetric resonators. https://doi.org/10.1364/oe.22.016099

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