作者机构:[1]State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and FineMechanics, Chinese Academy of Sciences, Shanghai 201800, China, [2]School of physics, Hunan University of Science and Technology, Xiangtan 310027, China, [3]High Energy Accelerator Research Organization (KEK), Ibaraki 305-0801, Japan
相关基金:supported by National Natural Science Foundation of China (Nos. 10974214, 60921004), the National Basic Research Program of China (No. 2006CB806000), the Chinese Academy of Sciences, and the Shanghai Commission of Science and Technology of China (Nos. 06DZ22015, 0652nm005)