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Asia Communications and Photonics Conference

Metallodielectric Hybrid Optical Antennas for Ultrabright and Directional Single Photon Emission

Xuewen Chen, Mario Agio, Vahid Sandoghdar

Published Jan 1, 2012• 0 citations
Publisher

Abstract

We exploit concepts from plasmonics and cavity quantum electrodynamics to devise new optical antennas for producing ultrabright single-photon streams. In combination with planar dielectric antenna, nearly every emitted single photon can be collected.
DOI
10.1364/acp.2012.as1b.2

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In a previous paper [Nat. Photon. 5, 166 (2011)], we reported on a planar dielectric antenna that achieved 96% efficiency in collecting the photons emitted by a single molecule. In that work, the transition dipole moment of the molecule was set perpendicular to the antenna plane. Here, we present a theoretical extension of that scheme that reaches collection efficiencies beyond 99% for emitters with arbitrarily oriented dipole moments. Our work opens important doors in a wide range of contexts including quantum optics, quantum metrology, nanoanalytics, and biophysics. In particular, we provide antenna parameters to realize ultrabright single-photon sources in high-index materials such as semiconductor quantum dots and color centers in diamond, as well as sensitive detection of single molecules in nanofluidic devices.