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Opt Lett. 2009 Aug 15;34(16):2542-4.

Fiber-coupled semiconductor waveguides as an efficient optical interface to a single quantum dipole.

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  • 1Center for Nanoscale Science and Technology, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.


We theoretically investigate the interaction of a single quantum dipole with the modes of a fiber-coupled semiconductor waveguide. Through a combination of tight modal confinement and phase-matched evanescent coupling, we predict that approximately 70% of the dipole's emission can be collected into a single-mode optical fiber. We further show that the dipole strongly modifies resonant light transmission through the system, with a change of over 1 order of magnitude for an appropriate choice of fiber-waveguide coupler geometry.

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