Excited-State Spin Coherence of a Single Nitrogen-Vacancy Centre in Diamond

G. D. Fuchs, V. V. Dobrovitski, D. M. Toyli, F. J. Heremans, C. D. Weis, T. Schenkel, and D. D. Awschalom, “Excited-State Spin Coherence of a Single Nitrogen-Vacancy Centre in Diamond,” Nature Physics, 6 668 (2010).