Excited-State Spectroscopy Using Single Spin Manipulation in Diamond

G. D. Fuchs, V. V. Dobrovitski,  R. Hanson, A. Batra, C. D. Weis, T. Schenkel, and D. D. Awschalom, “Excited-State Spectroscopy Using Single Spin Manipulation in Diamond,” Phys. Rev. Lett. 101, 117601 (2008).