Author Affiliations

Wang-Yau Cheng,^* Lisheng Chen, Tai Hyun Yoon,^† John L. Hall, and Jun Ye

JILA, National Institute of Standards and Technology and University of Colorado Department of Physics, University of Colorado, Boulder, Colorado 80903-0440

^*Department of Physics, National Dong Hwa University, Taiwan.

^†Korea Research Institute of Standards and Science, Daejon, Korea.