Affiliation: | Xiaolei Wang Pei Wang Chunchong Chen Junxue Chen Yonghua Lu Hai Ming and Qiwen Zhan 1 Department of Physics,Anhui Key Laboratory of Optoelectronic Science and Technology,University of Science and Technology of China,Hefei 230026,China 2 Electro-Optics Graduate Program,University of Dayton,300 College Park,Dayton,OH 45469,USA |