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Proceedings Paper

Optical manipulation of single spins in diamond
Author(s): Charles Santori; Philippe Tamarat; Philipp Neumann; Jörg Wrachtrup; David Fattal; Raymond G. Beausoleil; James Rabeau; Paolo Olivero; Andrew D. Greentree; Steven Prawer; Fedor Jelezko; Philip Hemmer
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Paper Abstract

Nitrogen-vacancy centers in diamond typically have spin-conserving optical transitions, a feature which allows for optical detection of the long-lived electronic spin states through fluorescence detection. However, by applying stress to a sample it is possible to obtain spin-nonconserving transitions in which a single excited state couples to multiple ground states. Here we describe two-frequency optical spectroscopy on single nitrogen-vacancy centers in a high-purity diamond sample at low temperature. When stress is applied to the sample it is possible to observe coherent population trapping with a single center. By adjusting the stress it is possible to obtain a situation in which all of the transitions from the three ground sublevels to a common excited state are strongly allowed. These results show that all-optical spin manipulation is possible for this system, and we propose that that by coupling single centers to optical microcavities, a scalable quantum network could be realized for photonic quantum information processing.

Paper Details

Date Published: 6 March 2007
PDF: 10 pages
Proc. SPIE 6482, Advanced Optical and Quantum Memories and Computing IV, 648207 (6 March 2007); doi: 10.1117/12.716391
Show Author Affiliations
Charles Santori, Hewlett-Packard Labs. (United States)
Philippe Tamarat, Univ. Stuttgart (Germany)
Philipp Neumann, Univ. Stuttgart (Germany)
Jörg Wrachtrup, Univ. Stuttgart (Germany)
David Fattal, Hewlett-Packard Labs. (United States)
Raymond G. Beausoleil, Hewlett-Packard Labs. (United States)
James Rabeau, Univ. of Melbourne (Australia)
Paolo Olivero, Univ. of Melbourne (Australia)
Andrew D. Greentree, Univ. of Melbourne (Australia)
Steven Prawer, Univ. of Melbourne (Australia)
Fedor Jelezko, Univ. Stuttgart (Germany)
Philip Hemmer, Texas A&M Univ. (United States)


Published in SPIE Proceedings Vol. 6482:
Advanced Optical and Quantum Memories and Computing IV
Zameer U. Hasan; Alan E. Craig; Selim M. Shahriar; Hans J. Coufal, Editor(s)

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