Author Affiliations

B. Sun,¹ D.B. Almeida,¹ R. Singh,^1,2 G.M. Diederich,³ M.E. Siemens,³ L.A. Padilha,⁴ W.K. Bae,⁵ J.M. Pietryga,⁶ V.I. Klimov,⁶ and S. T. Cundiff^1,2

¹JILA, National Institute of Standards and Technology, and the University of Colorado, Boulder, CO 80309-0440, USA

²Department of Physics, University of Colorado, Boulder, CO 80309-0390, USA

³Department of Physics and Astronomy, University of Denver, Colorado 80208, USA

⁴Instituto de Fisica “Gleb Wataghin”, Universidade Estadual de Campinas, C. P. 6165, 13083-970 Campinas, Sao Paulo, Brazil

⁵Photo-Electronic Hybrid Research Center, Korea Institute of Science and Technology, Seoul 136-791, Korea

⁶Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA