2 research outputs found
Enhanced Single Photon Emission from a Diamond-Silver Aperture
We have developed a scalable method for coupling single color centers in
diamond to plasmonic resonators and demonstrated Purcell enhancement of the
single photon emission rate of nitrogen-vacancy (NV) centers. Our structures
consist of single nitrogen-vacancy (NV) center-containing diamond nanoposts
embedded in a thin silver film. We have utilized the strong plasmon resonances
in the diamond-silver apertures to enhance the spontaneous emission of the
enclosed dipole. The devices were realized by a combination of ion implantation
and top-down nanofabrication techniques, which have enabled deterministic
coupling between single NV centers and the plasmonic modes for multiple devices
in parallel. The plasmon-enhanced NV centers exhibited over six-fold
improvements in spontaneous emission rate in comparison to bare nanoposts and
up to a factor of 3.6 in radiative lifetime reduction over bulk samples, with
comparable increases in photon counts. The hybrid diamond-plasmon system
presented here could provide a stable platform for the implementation of
diamond-based quantum information processing and magnetometry schemes.Comment: 16 pages, 4 figure