[1] G. P. Agrawal, Nonlinear Fiber Optics (Academic Press, San Diego, 2001).
[2] S. E. Harris, Phys. Today 50, (7) 36 (1997).
[3] M. Fleischhauer, A. Imamoglu, and J. P. Marangos, Rev. Mod. Phys. 77, 633 (2005), and references therein.
[4] C. Hang, Y. Li, L. Ma, and G. Huang, Phys. Rev. A 74, 012319 (2006), and references therein.
[5] L. Jin, S. Gong, Y. Niu, and S. Jin, Chin. Opt. Lett. 4, 252 (2006).
[6] C. Hang and G. Huang, Chin. Opt. Lett. 5, 47 (2007).
[7] R. Y. Chiao, Phys. Rev. A 48, R34 (1993).
[8] L. J. Wang, A. Kuzmich, and A. Dogariu, Nature 406, 277 (2000).
[9] M. G. Payne and L. Deng, Phys. Rev. A 64, 031802(R) (2001).
[10] K. J. Jiang, L. Deng, and M. G. Payne, Phys. Rev. A 74, 041803(R) (2006).
[11] K. J. Jiang, L. Deng, and M. G. Payne, Phys. Rev. A 76, 033819 (2007).
[12] L. Deng and M. G. Payne, Phys. Rev. Lett. 98, 253902 (2007).
