Variable optical chirality in an atomic assisted microresonator
Abstract
A whispering gallery mode resonator with a cavity-made slot filled atomic vapor is demonstrated, in which the chiral symmetry is broken induced by asymmetric backscattering of counter-propagating optical waves in the WGM microcavity. The chirality of resonator modes is steered via tuning dispersion relation in the cavity-made slot. The system exhibiting a high displacement sensitivity 15.22 THz/nm could be applied to optomechanical sensing applications.
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