Stuttgart 2012 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 19: Quanteninformation: Festkörper und Photonen
Q 19.6: Vortrag
Montag, 12. März 2012, 17:45–18:00, V38.04
Single Pr3+ ion in yttrium aluminum garnet (YAG) nanocrystals — Roman Kolesov1, •Kangwei Xia1, Rolf Reuter1, Rainer Stöhr1, Jan Meijer2, Hemmer Philip3, and Joerg Wrachtrup1 — 13. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, Stuttgart, D-70569, Germany — 2Ruhr-Universität Bochum, RUBION, Bochum, D-44780, Germany — 3Department of Electrical & Computer Engineering, Texas A&M University, College Station, TX 77843-3128, USA
Rare-earth crystals are widely studied and considered as good candidates for solid state optical quantum computing [1] due to long decoherence time of electron and nuclear spins and well resolved electronic structures [2]. For realizing spin qubit based on rare earth impurities, optical detection of a single rare-earth emitter is required. However, single rare-earth ion in crystals has not been demonstrated so far. Here, we report on observation of single Pr3+ ion doped YAG nanocrystals by using visible-to-ultraviolet upconversion at room temperature [3]. Optical properties of single Pr: YAG are also presented. Future experiments on single Pr3+ ions at low temperature are discussed. Reference [1] M.P. Hedges, J.J. Longdell, Y. Li, and M.J. Sellars, Nature 465, 1052 (2010) [2] J.B. Gruber, M.E. Hills, R.M. Macfarlane, C.A. Morrison, and G.A. Turner, Chem. Phys. 134, 241 (1989) [3] G. *Ozen, O. Forte, and B. Di Bartolo, Optical Materials 27, 1664 (2005)