Hannover 2016 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 47: Quantum Information: Quantum Computing and Communication I
Q 47.2: Vortrag
Donnerstag, 3. März 2016, 11:15–11:30, e214
Investigating spectral properties of Silicon-Vacancy centers in Nanodiamonds — •Andrea Kurz1, Lachlan J. Rogers1, Daniel Rudnicki2, Uwe Jantzen1, Ou Wang1, Valery Davydov3, Viatcheslav Agafonov4, Alexander Kubanek1, and Fedor Jelezko1 — 1Institut fuer Quantenoptik, Universitaet Ulm, Deutschland — 2Institute of Physics, Jagiellonian University, Krakow, Poland — 3Institute for High Pressure Physics, Russian Academy of Science, Moscow, Russia — 4Greman, Universit F. Rabelais, Tours, France
Over the last decade color centers in diamond have proven to be good candidates for quantum optics applications. One of these color centers, the silicon-vacancy (SiV) center has shown exceptional spectral properties, with more than 70% of the emitted photons contributing to its strong zero phonon line (ZPL). The strong, sharp and distinct ZPL transitions together with the weak sideband makes the SiV center a promising candidate for single photon generation.
These exceptional properties for centers in bulk are not necessarily preserved in Nanodiamonds (NDs). Even though the SiV fluoresces in NDs as small as 1.7nm, it is not yet known how the center is influenced by strain and the environment that starts to play a more important role at these sizes.
We investigate the properties of NDs grown by High Pressure and High temperature and correlate their size with their spectral behavior at cryogenic temperatures. We see the narrowest spectral lines measured so far in NDs with a width of 344 MHz.