TITLE

A planar dielectric antenna for directional single-photon emission and near-unity collection efficiency

AUTHOR(S)
Lee, K. G.; Chen, X. W.; Eghlidi, H.; Kukura, P.; Lettow, R.; Renn, A.; Sandoghdar, V.; Götzinger, S.
PUB. DATE
March 2011
SOURCE
Nature Photonics;Mar2011, Vol. 5 Issue 3, p166
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Single emitters have been considered as sources of single photons in various contexts, including cryptography, quantum computation, spectroscopy and metrology. The success of these applications will crucially rely on the efficient directional emission of photons into well-defined modes. To accomplish high efficiency, researchers have investigated microcavities at cryogenic temperatures, photonic nanowires and near-field coupling to metallic nano-antennas. However, despite impressive progress, the existing realizations substantially fall short of unity collection efficiency. Here, we report on a theoretical and experimental study of a dielectric planar antenna, which uses a layered structure to tailor the angular emission of a single oriented molecule. We demonstrate a collection efficiency of 96% using a microscope objective at room temperature and obtain record detection rates of ∼50 MHz. Our scheme is wavelength-insensitive and can be readily extended to other solid-state emitters such as colour centres and semiconductor quantum dots.
ACCESSION #
58701236

 

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