Coherent Population Trapping of Single Spins in Diamond under Optical Excitation

Charles Santori, Philippe Tamarat, Philipp Neumann, Jörg Wrachtrup, David Fattal, Raymond G. Beausoleil, James Rabeau, Paolo Olivero, Andrew D. Greentree, Steven Prawer, Fedor Jelezko, and Philip Hemmer

Phys. Rev. Lett. 97, 247401 – Published 13 December 2006

Abstract

Coherent population trapping is demonstrated in single nitrogen-vacancy centers in diamond under optical excitation. For sufficient excitation power, the fluorescence intensity drops almost to the background level when the laser modulation frequency matches the 2.88 GHz splitting of the ground states. The results are well described theoretically by a four-level model, allowing the relative transition strengths to be determined for individual centers. The results show that all-optical control of single spins is possible in diamond.

Received 20 July 2006

DOI:https://doi.org/10.1103/PhysRevLett.97.247401

Authors & Affiliations

Charles Santori^1,*, Philippe Tamarat², Philipp Neumann², Jörg Wrachtrup², David Fattal¹, Raymond G. Beausoleil¹, James Rabeau³, Paolo Olivero³, Andrew D. Greentree^3,4, Steven Prawer^3,4, Fedor Jelezko², and Philip Hemmer⁵

¹Hewlett-Packard Laboratories, 1501 Page Mill Rd., Palo Alto, California 94304, USA
²3. Physikalisches Institut, Universität Stuttgart, 70550 Stuttgart, Germany
³School of Physics, University of Melbourne, Victoria, Australia, 3010
⁴Centre of Excellence for Quantum Computer Technology, School of Physics, University of Melbourne, Victoria, Australia, 3010
⁵Electrical & Computer Engineering Department, Texas A&M University, College Station, Texas 77843, USA

^*Electronic address: charles.santori@hp.com

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Vol. 97, Iss. 24 — 15 December 2006

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