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Published on: September 5, 2019
Nonreciprocity in Photon Pair Correlations of Classically Reciprocal Systems
Austin Graf1,2, Steven D Rogers3, Jeremy Staffa1,2
1Institute of Optics, University of Rochester, Rochester, New York 14627, USA.
Abstract:
Nonreciprocal optical systems have found many applications altering the linear transmission of light as a function of its propagation direction. Here, we consider a new class of nonreciprocity which appears in photon pair correlations and not in linear transmission. We experimentally demonstrate and theoretically verify this nonreciprocity in the second-order coherence functions of photon pairs produced by spontaneous four-wave mixing in a silicon microdisk. Reversal of the pump propagation direction can result in substantial extinction of the coherence functions without altering pump transmission.
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