Affiliation: | (1) College of Physics, Jilin University, ChangChun 130023, P.R. China, CN;(2) Key Lab. of Coherent Light, Atomic and Molecular Spectroscopy, Educational Ministry of China, P.R. China, CN;(3) CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, P.R. China, CN |