013104 (2013).
[60] Z. Gu, C. Kuang*, X. Hao, Y. Xue, Z. Zheng, and X. Liu, Methods for generating a dark spot using phase and polarization modulation light, Optik - International Journal for Light and Electron Optics 124, 650654(2013).
[59] K. Li, C.Kuang*, X. Liu，Small angular displacement measurement based on an autocollimator and a common-path compensation principle, Rev. Sci. Instrum. 84, 015108 (2013).
[58] Y. Wang, C. Kuang*, Z. Gu, X. Liu, Image subtraction method for improving late