Abstract

We give a theoretical treatment of single-atom detection in a compound optical microcavity. The cavity consists of a single-mode semiconductor waveguide with a gap to allow atoms to interact with the optical field in the cavity. Optical losses, both in the semiconductor and induced by the gap, are considered, and we give an estimate of the cavity finesse. We also compute the cooperativity parameter and show how it depends on the gap width and cavity length. Maximization of the cooperativity does not always correspond to maximization of the coupling.

©2012 Optical Society of America

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