Mainz 2017 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 20: Nano-Optics II
Q 20.1: Vortrag
Dienstag, 7. März 2017, 11:00–11:15, P 11
Color centers in pyramidal single crystal diamond scanning probes — •Richard Nelz1, Philipp Fuchs1, Oliver Opaluch1, Selda Sonusen1, Natalia Savenko2, Vitali Podgursky3, and Elke Neu1 — 1Universität des Saarlandes, Fakultät NT - Fachrichtung Physik, Campus E2.6, 66123 Saarbrücken — 2Artech Carbon OÜ, Jõe 5, 10151 Tallinn, Estonia — 3Tallinn University of Technology, Department of Materials Engineering, Ehitajate tee 5, 19086, Tallinn, Estonia
Nitrogen vacancy (NV) color centers in diamond are highly suitable as nanoscale quantum sensors e.g. for optical near fields and magnetic fields; the latter due to their coherent, optically addressable electronic spin [1]. To harness the NV centers’ full potential for nanoscale imaging, scannable nanostructures (scanning probes) are required that simultaneously enable efficient extraction of color center fluorescence. However, fabricating such structures in top-down approaches requires extensive efforts in nanofabrication. In contrast, bottom-up approaches can form nanostructures during diamond growth. We here investigate in-situ created color centers in such commercially available single-crystal pyramidal diamond scanning probes and their usability as magnetic field sensors [2]. We summarize our results on fluorescence spectroscopy, spin characterization and numerical investigation of the photonic properties.
[1] L. Rondin et al., Rep. Prog. Phys. 77 056503 (2014)
[2] R. Nelz et al., Appl. Phys. Lett. 109 193105 (2016)