[1] W. Feng, L. Lin, and L. Chen, Acta Opt. Sin. (in Chinese) 27, 1044 (2007).
[2] Y. Yang, Q. Xu, and Z. Guo, Chinese J. Lasers (in Chinese) 34, 1323 (2007).
[3] J. A. Fleck, Jr., and M. D. Feit, J. Opt. Soc. Am. 73, 920 (1983).
[4] A. Ciattoni, B. Crosignani, and P. D. Porto, J. Opt. Soc. Am. A 18, 1656 (2001).
[5] A. Ciattoni, G. Cincotti, and C. Palma, Opt. Commun. 195, 55 (2001).
[6] G. Cincotti, A. Ciattoni, and C. Palma, IEEE J. Quantum Electron. 37, 1517 (2001).
[7] A. Ciattoni, G. Cincotti, and C. Palma, J. Opt. Soc. Am. A 19, 792 (2002).
[8] G. Cincotti, A. Ciattoni, and C. Palma, J. Opt. Soc. Am. A 19, 1680 (2002).
[9] B. Tang, H. Tang, K. Zhu, H. Yang, and W. Wen, J. OptoelectronicsLaser (in Chinese) 17, 365 (2006).
[10] B. Lü and S. Luo, Opt. Technol. 36, 51 (2004).
[11] D. Deng, J. Shen, Y. Tian, J. Shao, and Z. Fan, Optik 118, 547 (2007).
[12] K. Duan and B. Lü, Opt. Commun. 261, 327 (2006).