Coherent optical non-reciprocity in axisymmetric resonators

Erik J. Lenferink, Guohua Wei, Nathaniel P. Stern

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)16099-16111
Number of pages13
JournalOptics Express
Issue number13
StatePublished - Jun 30 2014

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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