[1] [1] S. Shang, C. Liao, K. Yi, D. Zhang, Z. Fan, and J. Shao, High Power Laser and Particle Beams (in Chinese) 17, 511 (2005).

[2] [2] G. Liao, D. Ba, L. Wen, S. Liu, and S. Yan, Vacuum (in Chinese) 44, 32 (2007).

[3] [3] Synthetic Sapphire, TYDEX, J. S. Co. http://www.tydex.rμ.

[4] [4] S. Novak, R. Hrach, J. Pavlik, and V. Hrachova, SPIE 2780, 76 (1996).

[5] [5] J. C. Manifacier, J. Casiot, and J. P. Fillard, J. Phys. E 9, 1002 (1991).

[6] [6] T. Liang, Physical Optics (in Chinese) (2nd edition) (China Machine Press, Beijing, 1987).

[7] [7] R. Gotzelmann, H. Hagedorn, A. Zoller, A. Kobiak, and W. Klug, Proc. SPIE 5963, 5963L (2005).

[8] [8] Y. Wang, Q. Li, and Z. Fan, High Power Laser and Particle Beams (in Chinese) 15, 841 (2003).

[9] [9] A. Pillonnet, R. Brenier, C. Garapon, and J. Mugnier, Proc. SPIE 5249, 657 (2004).