Berlin 2015 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 105: Quantum Information Systems: Si Vacancies and NV Centers (jointly with HL)

TT 105.8: Vortrag

Donnerstag, 19. März 2015, 16:45–17:00, ER 164

Linear polarization properties of the NV⁻ center photoluminesence in diamond — •Dion Braukmann¹, Jörg Debus¹, Vladimir L. Korenev², Vitalii Yu. Ivanov³, Dmitri R. Yakovlev¹, and Manfred Bayer¹ — ¹Experimentelle Physik 2, Technische Universität Dortmund, 44227 Dortmund, Germany — ²Ioffe Physical-Technical Institute, Russian Academy of Science, 194021 St. Petersburg, Russia — ³Institute of Physics, Polish Academy of Sciences, 02668 Warsaw, Poland

The negatively charged nitrogen-vacancy (NV⁻) center in diamond has been studied in recent years on account of possible applications in quantum information processing, spin-electronics and, e.g., biophotonics. Particular focus has been drawn onto its optical properties. We report on polarization-dependent optical studies of NV⁻ centers in diamond subjected to high magnetic fields of up to 10 T. We observe asymmetric Zeeman splitting of the zero-phonon line photoluminescence, a strong optical alignment as well as Faraday rotation at room temperature. The linear polarization properties of the NV⁻ photoluminescence are studied as function of the diamond crystal orientation in the stationary and time-resolved regimes.