Cavity quantum electrodynamics with surface plasmons
Abstract
We describe a technique that enables strong, coherent coupling between individual optical emitters and electromagnetic excitations in conducting nanowires. The excitations in the wire are optical plasmons that are localized to sub-wavelength dimensions, and under realistic conditions optical emission can be almost entirely directed into the propagating plasmon modes via a mechanism analogous to cavity quantum electrodynamics. We describe an application of this technique involving efficient generation of single photons on demand, in which the plasmon on the nanowire is efficiently out-coupled to a dielectric waveguide. Finally, realistic sources of imperfections are analyzed.Keywords
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