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Regensburg 2010 – scientific programme

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DS: Fachverband Dünne Schichten

DS 41: [O] Plasmonics and Nanooptics VI (Joint Session DS/O/HL)

DS 41.11: Talk

Thursday, March 25, 2010, 17:30–17:45, H32

Efficient Coupling of Single NV Centres to Surface Plasmon Polaritons — •Bernhard Grotz1, Merle Becker1, Sebastian Macke2, Julia Tisler1, Gopalakrishnan Balasubramanian1, Fedor Jelezko1, and Jörg Wrachtrup113. Physikalisches Institut, Universität Stuttgart, Germany — 2Max-Planck-Institut für Metallforschung, Stuttgart, Germany

When light interacts with metal surfaces it excites electrons which can form propagating charge-density waves called surface plasmon polaritons. These collective electronic excitations have many applications due to their ability to produce strong electric fields localized to subwavelength distance scales. It was shown that nanodiamonds containing single nitrogen-vacancy (NV)centres can be attached efficiently to silver nanowires where they are used to excite single surface plasmon polaritons [1]. We discuss recent approaches to address this problem and in particular how to increase the coupling strength between NV and nanowires.

[1] R. Kolesov, B. Grotz, G. Balasubramanian, R. J. Stöhr, A. A. L. Nicolet, P. R. Hemmer, F. Jelezko & J. Wrachtrup, Wave-particle duality of single surface plasmon polaritons, Nature Physics 5, 470-474 (2009)

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