Open AccessDesign of highly efficient metallo-dielectric patch antennas for single-photon emission
Author(s) -
Florian Bigourdan,
François Marquier,
JeanPaul Hugonin,
JeanJacques Greffet
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.002337
Subject(s) - photon , purcell effect , optics , optoelectronics , plasmon , spontaneous emission , physics , dielectric , broadband , radiative transfer , quantum efficiency , quantum dot , nanophotonics , laser
Quantum emitters such as NV-centers or quantum dots can be used as single-photon sources. To improve their performance, they can be coupled to microcavities or nano-antennas. Plasmonic antennas offer an appealing solution as they can be used with broadband emitters. When properly designed, these antennas funnel light into useful modes, increasing the emission rate and the collection of single-photons. Yet, their inherent metallic losses are responsible for very low radiative efficiencies. Here, we introduce a new design of directional, metallo-dielectric, optical antennas with a Purcell factor of 150, a total efficiency of 74% and a collection efficiency of emitted photons of 99%.