Hannover 2016 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 42: Poster: Quantum Optics and Photonics III

Q 42.58: Poster

Mittwoch, 2. März 2016, 16:30–19:00, Empore Lichthof

Color centers in diamond as nanoscale quantum sensors — •Richard Nelz, Amandeep Kaur, Ettore Bernardi, Selda Sonusen, and Elke Neu — Universität des Saarlandes, FR 7.2 Experimentalphysik, Campus E2.6, 66123 Saarbrücken

Single nitrogen vacancy (NV) color centers in diamond are highly suitable as nanoscale quantum sensors for e.g. optical near fields and magnetic fields; the later due to their coherent, optically addressable electronic spin-states [1]. As a result of the high refractive index of diamond it is intrinsically challenging to efficiently extract the fluorescence of the NV center. Optical read-out of the NV sensor requires efficiently collecting the center’s fluorescence which we achive using dedicated diamond nanostructures: We integrate NV centers into nanopillars that function as tips for scanning probe microscopy and waveguides for light. We present optimized approaches towards the fabrication of all diamond scanning probe devices and their applications.

[1] Rondin et al., Rep. Prog. Phys. 77 056503 (2014)