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Humboldt-Universität zu Berlin - Mathematisch-Naturwissen­schaft­liche Fakultät - Nanooptik

Humboldt-Universität zu Berlin | Mathematisch-Naturwissen­schaft­liche Fakultät | Institut für Physik | Nanooptik | Publications | Single defect centers in diamond nanocrystals as quantum probes for plasmonic nanostructures

Andreas W Schell, Günter Kewes, Tobias Hanke, Alfred Leitenstorfer, Rudolf Bratschitsch, Oliver Benson, and Thomas Aichele (2011)

Single defect centers in diamond nanocrystals as quantum probes for plasmonic nanostructures

Opt. Express, 19(8):7914-7920.

We present two applications of a single nitrogen vacancy center in a nanodiamond as quantum probe for plasmonic nanostructures. Coupling to the nanostructures is achieved in a highly controlled manner by picking up a pre-characterized nanocrystal with an atomic force microscope and placing it at the desired position. Local launching of single excitations into a nanowire with a spatial control of few nanometers is demonstrated. Further, a two dimensional map of the electromagnetic environment of a plasmonic bowtie antenna was derived, resembling an ultimate limit of fluorescence lifetime nanoscopy.