Author Affiliations

J. K. Wahlstrand,^1,2,* S. T. Cundiff,² and J. E. Sipe^2,*,†

¹Department of Physics, University of Maryland, College Park, Maryland 20742, USA

²JILA, University of Colorado and National Institute of Standards and Technology, Boulder, Colorado 80309-0440, USA

^*Permanent address: Department of Physics, University of Toronto, Toronto, Ontario M5S1A7, Canada

^† wahlstrj@umd.edu