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Updated: Jun 2, 2026

Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis
Published on: May 10, 2021
Single defect centers in diamond nanocrystals as quantum probes for plasmonic nanostructures
Andreas W Schell1, Günter Kewes, Tobias Hanke
1Humboldt-Universität zu Berlin, Institute of Physics, Newtonstrasse 15, D-12489 Berlin, Germany. andreas.schell@physik.hu-berlin.de
Abstract:
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.
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