Regensburg 2010 – wissenschaftliches Programm
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O: Fachverband Oberflächenphysik
O 72: Plasmonics and Nanooptics VI
O 72.11: Vortrag
Donnerstag, 25. März 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 Wrachtrup1 — 13. 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)