中文摘要：

Liu Chao, born in 1984. He received his B. S. degree from Zhejiang University in 2005. From then on, he has been taking graduate courses for his Ph. D degree at the Department of Optical Engineering of Zhejiang University. His research interests include optical instruments and micro/nanotechnology. To whom correspondence should be addressed. E-mail： zhangdx@zju.edu. cn