Efficient Coupling of a Single Diamond Color Center to Propagating Plasmonic Gap Modes

The work of Shailesh on coupling a single NV-center to a plasmonic gap was published in Nano Letters.

Efficient Coupling of a Single Diamond Color Center to Propagating Plasmonic Gap Modes
Shailesh Kumar, Alexander Huck, and Ulrik L. Andersen
Department of Physics, Technical University of Denmark, Building 309, 2800 Kongens Lyngby, Denmark
DOI: 10.1021/nl304682r
Publication Date (Web): February 15, 2013

Nano Lett., 2013, 13 (3), pp 1221–1225

In this work, a single nitrogen-vacancy (NV) center hosted by a nano-diamond was successfully located inside the gap between two parallel placed silver nano-wires. The strongly confined gap-plasmon mode of this nano-wire structure enhanced the NV-center's spontaneous emission rate by a factor of 8.3 and yielded efficient excitation of the plasmonics mode propagating along the nano-wires. With further optimization such a system based on metallic nano-structures might provide a route to coherent interaction between quantum emitters and single optical modes on a chip scale. 


Shailesh's Nano Letters

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