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Updated: May 14, 2026

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
Published on: July 21, 2018
Efficient coupling of a single diamond color center to propagating plasmonic gap modes
Shailesh Kumar1, Alexander Huck, Ulrik L Andersen
1Department of Physics, Technical University of Denmark, Building 309, 2800 Kongens Lyngby, Denmark. shailesh@fysik.dtu.dk
Abstract:
We report on coupling of a single nitrogen-vacancy (NV) center in a nanodiamond to the propagating gap mode of two parallel placed chemically grown silver nanowires. The coupled NV-center nanowire system is made by manipulating nanodiamonds and nanowires with the tip of an atomic force microscope cantilever. An efficient coupling of an NV-center to an easily accessible gap plasmon mode is demonstrated and we measure an enhancement of the spontaneous emission decay rate by a factor of 8.3.

