基金The National Natural Science Foundation of China(No.61205088)the National Natural Science Foundation of Chongqing City(No.2011BB2009)+2 种基金the Doctorial Start-up Fund of Southwest University(No.SWU110030)the Open Research Fund of State Key Laboratory of Transient Optics and Photonics,Chinese Academy of Sciences(No.201003)the Fundamental Research Funds for the Central Universities(No.XDJK2012B015,2014C015)
