[1] [1] Bruno Crosignani, Mordechai Segev, Doruk Engin et.al.. Self-trapping of optical beams in photorefractive media[J]. J. Opt. Soc. Am. B, 1993, 10(3): 446～453

[2] [2] S. R. Singh, D. N. Christodulides. Evolution of spatial optical solitons in biased photorefractive media under steady state conditions[J]. Opt. Commun., 1995, 118: 569～576

[3] [3] Ming-feng Shih, Patrick Leach, Mordechai Segev et al.. Two-dimensional steady-state photorefractive screening solitons[J]. Opt. Lett., 1996, 21(5): 324～326

[4] [4] Galen C. Duree, Jr, John L. Shultz, Gergory J. Salamo et al.. Observation of self-trapping of an optical beams due to the photorefractive effect[J]. Phys. Rev. Lett., 1993, 71(4): 533～536

[5] [5] Mordechai Segev, George C. Valley, Bruno Crosignani et al.. Steady-state spatial screening solitons in photorefractive matials with external applied field[J]. Phys. Rev. Lett., 1994, 73(24): 3211～3214

[6] [6] D. N. Christodoulides, M. I. Carvalho. Bright, dark, and gray spatial soliton states in photorefractive media[J]. J. Opt. Soc. Am. B, 1995, 12(9): 1628～1633