Dresden 2009 – scientific programme

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O: Fachverband Oberflächenphysik

O 27: Poster Session I (Methods: Scanning probe techniques; Methods: Atomic and electronic structure; Methods: Molecular simulations and statistical mechanics; Oxides and Insulators: Clean surfaces; Oxides and Insulators: Adsorption; Oxides and Insulators: Epitaxy and growth; Semiconductor substrates: Clean surfaces; Semiconductor substrates: Epitaxy and growth; Semiconductor substrates: Adsorption; Nano- optics of metallic and semiconducting nanostructures; Electronic structure; Methods: Electronic structure theory; Methods: other (experimental); Methods: other (theory); Solutions on surfaces; Epitaxial Graphene; Surface oder interface magnetism; Phase transitions; Time-resolved spectroscopies)

O 27.68: Poster

Tuesday, March 24, 2009, 18:30–21:00, P2

Coupling of Single NV-Centres to Surface Plasmons — •Merle Becker, Bernhard Grotz, Gopalakrishnan Balasubramanian, Roman Kolesov, Fedor Jelezko, and Jörg Wrachtrup — 3. Physikalisches Institut, Universität Stuttgart,70550 Stuttgart, Germany

Subwavelength light localization is the crucial condition to achieve strong coupling between single emitters and nanosystems. Controlling the coupling and therewith controlling light quanta is of great interest in the field of quantum science. Coupling of single emitters to surface plasmons was already shown previously, however when thinking about devices, it is of big importance to gain knowledge about coupling strengths that can be achieved experimentally. As model system, we show the coupling of single NV centres to Ag nanowires at different diameters in comparison to theoretical models. NV centres were chosen as single emitters due to absolute photostability at room temperature and growing importance in quantum optics and MRI [1].

[1] G. Balasubramanian et al. Nature 455, 648 - 651 (2008)