1 Department of Physics, Technical University of Denmark2 Quantum Physics and Information Techology, Department of Physics, Technical University of Denmark3 Department of Photonics Engineering, Technical University of Denmark
We report on the observation of coupling a single nitrogen vacancy (NV) center in a nanodiamond crystal to a propagating plasmonic mode of silver nanowires. The nanocrystal is placed either near the apex of a single silver nanowire or in the gap between two end-to-end aligned silver nanowires. We observe an enhancement of the NV-centers' decay rate in both cases as a result of the coupling to the plasmons. The devices are nano-assembled with a scanning probe technique. Through simulations, we show that end-to-end aligned silver nanowires can be used as a controllable splitter for emission from a dipole emitter.
Applied Physics Letters, 2013, Vol 102, Issue 10
Decay (organic); Nanodiamonds; Plasmons; Electric resistance measurement