Hannover 2016 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 42: Poster: Quantum Optics and Photonics III
Q 42.56: Poster
Mittwoch, 2. März 2016, 16:30–19:00, Empore Lichthof
Narrowband, room-temperature single photon emitters based on silicon- vacancy centers in diamond nanocrystals produced by a wet-milling process — •Sarah Lindner1, Alexander Bommer1, Andreas Muzha2, Anke Krueger2, Laia Gines3, Oliver Williams3, and Christoph Becher1 — 1Fachrichtung 7.2 (Experimentalphysik), Universität des Saarlandes, Campus E2.6, 66123 Saarbrücken — 2Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074 Würzburg — 3School of Engineering, Cardiff University, Newport Road, Cardiff CF24 3AA
Single-photon sources with well-defined spectral properties are of special interest to quantum technologies. Silicon vacancy (SiV) color centers in diamond nanocrystals are especially promising single photon sources due to their narrow emission bandwidth and high emission rate at room temperature [1]. To even further enhance these properties, SiV centers can be coupled to optical systems, which require nanodiamonds of sizes < 100 nm and low strain, to preserve the advantageous optical properties of the SiV center. Here we report on SiV centers in nanodiamonds which are produced by milling down a polycrystalline diamond film [2] containing SiV centers exploiting a wet-milling process [3]. Different center wavelengths of the zero-phonon-lines and varying linewidths among SiV centers in distinct nanodiamonds are observed. As some of the nanodiamonds contain single SiV centers they are favorable candidates for the integration into photonic systems.
[1] E. Neu et al., NJP 13, 25012 (2011), [2] O. A. Williams et. al., PSS A 203, 3375 (2006), [3] S. Heyer et. al., ACS Nano 8, 5757 (2014)