[1] [1] Guo Ru, Ling Zhenfang, Chen Xiaofu et al.. Saturable nonlinearity in photovoltaic-photorefractive crystals under open-circuit condition [J]. Chin. Phys. Lett., 2000, 17(11): 804～805

[2] [2] Yan Jinren, Pan Liuxian, Zhou Guanghui. Soliton perturbations for a combined KdV-MKdV equation [J]. Chin. Phys. Lett., 2000, 17(9):625～627

[3] [3] 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

[4] [4] M. Segev, G. C. Valley, M.C. Bashaw et al.. Photovoltaic spatial solitons [J]. J. Opt. Soc. Am. B, 1997, 14(7):1772～1781

[5] [5] Lu Keqing, Tang Tiantong, Zhang Yanpeng. One-dimensional steady-state spatial solitons in photovoltaic photorefractive materials with an external applied field [J]. Phys. Rev. A, 2000, 61(5):053822-1～053822-5

[6] [6] Lu Keqing, Zhang Yanpeng, Tang Tiantong et al.. Incoherently coupled steady-state soliton pairs in biased photorefractive-photovoltaic materials [J]. Phys. Rev. E, 2001, 64(5):056603-1～056603-9

[7] [7] M. I. Carvalho, S. R. Singh, D. N. Christodoulides et al.. Dark and bright vector spatiam solitons in biased photorefractive media [J]. Phys. Rev. E, 1996, 53(1):R53～R56

[8] [8] Lu Keqing, Qian Shixiong, Zhao Wei et al.. Steady-state bright-dark vector spatial solitons in biased photorefractive-photovoltaic crystals [J]. Opt. Commun., 2002, 209(4～6):437～444

[9] [9] She Weilong, Zheng Xiguang, Ni Xiaohui et al.. A vector theory on spatial solitons in Kerr media [J]. Chin. Phys. Lett., 2001, 18(10):1346～1349

[11] [11] Keqing Lu, Xiangping Zhu, Wei Zhao et al.. Low-amplitude vector screening solitons [J]. Chin. Opt. Lett., 2004, 2(8):483～485