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arXiv · 1807.03682

Surface plasmon launching by polariton superradiance

Yu-Xiang Zhang·Yuan Zhang·Klaus Mølmer
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Abstract

The condition of phase matching prohibits the transfer of excitation from free-space photons to surface plasmon polaritons (SPP). We propose and analyze a scheme that excites an ensemble of emitters in a collective state, which is phase matched with the SPP by the optical pulses used for its preparation. By a collective enhancement the ensemble, hence, emits an SPP in a well defined direction. We demonstrate the scheme by analyzing the launching of near-infrared graphene SPP. Our theory incorporates the dispersive and dissipative properties of the plasmon modes to evaluate the non-Markovian emission by the ensembles and will also be applicable for other types of surface polaritons.

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Yu-Xiang Zhang, Yuan Zhang, Klaus Mølmer. 2018-07-10. Surface plasmon launching by polariton superradiance. https://doi.org/10.1021/acsphotonics.9b00193

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