作者机构:[1]College of Precision Instrument and Opto-electronics Engineering, Institute of Laser and Optoelectronics, Tianjin University, Tianjin 300072, China, [2]Key Laboratory of Optoelectric Information Science and Technology, Ministry of Education, Tianjin University, Tianjin 300072, China
相关基金:Project supported by the National Natural Science Foundation of China (Grant Nos 10474071 and 60671036).