Dresden 2014 – scientific programme
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MI: Fachverband Mikrosonden
MI 4: Scanning Probe Microscopy
MI 4.3: Talk
Tuesday, April 1, 2014, 11:45–12:00, MER 02
Quantum-Emitter Fluorescence Lifetime Imaging Using a Single NV Center — •Andreas W. Schell1, Philip Engel1, Julia F. M. Werra2, Christian Wolff3, Kurt Busch2,3, and Oliver Besnon1 — 1Humboldt-Universität zu Berlin, Institut für Physik, AG Nanooptik, D-12489 Berlin, Germany — 2Humboldt-Universität zu Berlin, Institut für Physik, AG Theoretische Optik & Photonik, D-12 D-12489 Berlin, Germany — 3Max-Born-Institut, D-12 D-12489 Berlin, Germany
Knowledge about the local density of optical states (LDOS) is a key requirement for understanding and engineering the coupling of emitters to photonic and plasmonic structures. One way to gain this knowledge is to use atomic force microscope nanomanipulation techniques to control the coupling of a single nitrogen vacancy (NV) center in nanodiamond to the structures of interest and use its varying decay rate as a measure for the LDOS [1].
Here, we will show a more sophisticated approach which uses an NV centers as a scanning probe. With a nanodiamond containing a single NV center glued to the tip of an atomic force microscope the LDOS is mapped out in a very controlled way in all three dimensions, giving insight into the local behavior of the coupling [2]. By comparison with three-dimensional ab-initio simulation this enables for quantitative understanding of local electromagnetic effects on the nanoscale.
[1] A. W. Schell et. al., Optics Express 19, 8, 7914 (2011).
[2] A. W. Schell et. al., submitted (2013).