[1] [1] L. D. Barron, Molecular Light and Optical Activity (Cambridge University Press, Cambridge, 1982).

[2] [2] D. Budker, W. Gawlik, D. F. Kimball, S. M. Rochester, V. V. Yashchuk, and A. Weis, Rev. Mod. Phys. 74, 1153 (2002).

[3] [3] S. E. Harris, Phys. Today 50, 36 (1997).

[4] [4] M. Fleischhauer, A. Imamoglu, and J. P. Marangos, Rev. Mod. Phys. 77, 633 (2005).

[5] [5] Y. Wu and L. Deng, Phys. Rev. Lett. 93, 143904 (2004).

[6] [6] G. Huang, L. Deng, and M. G. Payne, Phys. Rev. E 72, 016617 (2005).

[7] [7] C. Hang, G. Huang, and L. Deng, Phys. Rev. E 73, 036607 (2006).

[8] [8] L. Deng, M. G. Payne, G. Huang, and E. W. Hagley, Phys. Rev. E 72, 055601 (2005).

[9] [9] G. Huang, K. Jiang, M. G. Payne, and L. Deng, Phys. Rev. E 73, 056606 (2006).

[10] [10] C. Hang, G. Huang, and L. Deng, Phys. Rev. E 74, 046601 (2006).

[11] [11] V. A. Sautenkov, M. D. Lukin, C. J. Bednar, I. Novikova, E. Mikhailov, M. Fleischhauer, V. L. Velichansky, G. R. Welch, and M. O. Scully, Phys. Rev. A 62, 023810 (2000).

[12] [12] A. B. Matsko, I. Novikova, M. S. Zubairy, and G. R. Welch, Phys. Rev. A 67, 043805 (2003).

[13] [13] D. Petrosyan and Y. P. Malakyan, Phys. Rev. A 70, 023822 (2004).

[14] [14] V. Roscinski, J. Czub, and W. Miklaszewski, Phys. Rev. A 70, 033405 (2004).

[15] [15] Y. P. Malakyan, S. M. Rochester, D. Budker, D. F. Kimball, and V. V. Yashchuk, Phys. Rev. A 69, 013817 (2004).

[16] [16] D. Cho, J. M. Choi, J. M. Kim, and Q. Park, Phys. Rev. A 72, 023821 (2005).

[17] [17] F. S. Pavone, G. Bianchini, F. S. Cataliotti, T. W. Hansch, and M. Inguscio, Opt. Lett. 22, 736 (1997).

[18] [18] S. Wielandy and A. L. Gaeta, Phys. Rev. Lett. 81, 3359 (1998).

[19] [19] B. Wang, S. Li, J. Ma, H. Wang K. C. Peng, and M. Xiao, Phys. Rev. A 73, 051801 (2006).

[20] [20] Y. Li, C. Hang, L. Ma, and G. Huang, Phys. Lett. A 354, 1 (2006).

[21] [21] C. Hang, Y. Li, L. Ma, and G. Huang, Phys. Rev. A 74, 012319 (2006).

[22] [22] S. Zhu, A. Xu, Y. Zhang, H. Guo, X. Chen, and D. Wu, Chin. Opt. Lett. 1, 680 (2003).