[1] K. Xie, Y. Rao, and Z. Ran, Acta Opt. Sin. (in Chinese) 28, 569 (2008).
[2] J. Geng, C. Spiegelberg, and S. Jiang, IEEE Photon. Technol. Lett. 17, 1827 (2005).
[3] B. Kelly, R. Phelan, D. Jones, C. Herbert, J. O’Carroll, M. Rensing, J. Wendelboe, C. B. Watts, A. Kaszubowska-Anandarajah, P. Perry, C. Guignard, L. P. Barry, and J. O’Gorman, Electron. Lett. 43, 2311 (2007).
[4] X. Zhang, W. Chen, Y. Liu, X. Wang, L. Xie, N. Zhu, and B. Feng, Chinese J. Lasers (in Chinese) 34, 50 (2007).
[5] A. E. Siegman, Lasers (University Science Books, Mill Valley, 1986) Chap.11.
[6] Z. Hu and H. Shen, Chinese J. Lasers B 9, 20 (2000).
[7] J. Geng, S. Staines, Z. Wang, J. Zong, M. Blake, and S. Jiang, IEEE Photon. Technol. Lett. 18, 1813 (2006).
[8] P. Yeh, Optical Waves in Layered Media (Wiley, New York, 1988) Chaps.4 and 7.
[9] J. Buus, Electron. Lett. 21, 179 (1985).
[10] C. H. Henry, IEEE J. Quantum Electron. 18, 259 (1982).