作者机构:[1]Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China, [2]School of Materials Science and Engineering, China University of Mining and Technology, Xuzhou 221116, China
相关基金:Project supported by the Youth Science Research Foundation of China University of Mining and Technology (Grant No. 2009A058) and the Natural Science Foundation of Shanghai Committee of Science and Technology (Grant No. 10ZR1433500).