TY  - JOUR
A1  - Chu, X. -L.
A1  - Brenner, Thomas J. K.
A1  - Chen, X. -W.
A1  - Ghosh, Y.
A1  - Hollingsworth, J. A.
A1  - Sandoghdar, Vahid
A1  - Goetzinger, S.
T1  - Experimental realization of an optical antenna designed for collecting 99% of photons from a quantum emitter
T2  - Optica
N2  - A light source that emits single photons at well-defined times and into a well-defined mode would be a decisive asset for quantum information processing, quantum metrology, and sub-shot-noise detection of absorption. One of the central challenges in the realization of such a deterministic device based on a single quantum emitter concerns the collection of the photons, which are radiated into a 4 pi solid angle. Here, we present the fabrication and characterization of an optical antenna designed to convert the dipolar radiation of an arbitrarily oriented quantum emitter to a directional beam with more than 99% efficiency. Our approach is extremely versatile and can be used for more efficient detection of nanoscopic emitters ranging from semiconductor quantum dots to dye molecules, color centers, or rare-earth ions in various environments. Having addressed the issue of collection efficiency, we also discuss the photophysical limitations of the existing quantum emitters for the realization of a deterministic single-photon source. (C) 2014 Optical Society of America
Y1  - 2014
UR  - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/37472
SN  - 2334-2536
VL  - 1
IS  - 4
SP  - 203
EP  - 208
PB  - Optical Society of America
CY  - Washington
ER  -