[1] Z. Liu, Z. Cao, and Q. Shen, Acta Opt. Sin. (in Chinese) 23, 870 (2003).
[2] J. Huang, X. Cai, and Z. Lin, Acta Opt. Sin. (in Chinese) 21, 1008 (2001).
[3] R. Wei, X. Cai, and Z. Lin, Acta Opt. Sin. (in Chinese) 21, 870 (2001).
[4] L. Tang, Z. Cai, and Z. Lin, Chin. J. Laers (in Chinese) 29, 1 (2002).
[5] L. Zhang, D. Li, and J. Guo, Chin. J. Lasers (in Chinese) 33, 176 (2006).
[6] X. Gao, C. Gao, M. Gao, J. Li, and G. Wei, High Power Laser and Particle Beams (in Chinese) 18, 189 (2006).
[7] K. Bbennett and R. L. Byer, Appl. Opt. 19, 2408 (1980).
[8] C. Ai and J. C. Wyant, Appl. Opt. 32, 4904 (1993).
[9] W. L. Schaich, G. E. Ewing, and R. L. Karlinsey, Appl. Opt. 45, 7012 (2006).
[10] J. Y. Fana, H.-X. Lib, and F.-Q. Wu, Opt. Commun. 223, 11 (2003).