[1] [1] Segev M, Valley G C, Crosignani B, et al. Steady-state spatial screening solitons in photorefractive materials with external applied field[J]. Applied Physics Letters, 1994, 73(24): 3211-3214.

[2] [2] Yan Lifen, Wang Hongcheng, Zhang Bingzhi, et al. Self-deflection of dark and gray photovoltaic solitons[J]. Acta Physica Sinica, 2007, 56(8): 4627-4634.

[3] [3] Li Rongji, She Weilong, Wang Xiaosheng, et al. One-dimensional dark solitons in photovoltaic media with a positive perturbation refractive index[J]. Acta Physica Sinica, 2001, 50(11): 2166-2171.

[4] [4] Lu Keqing, Zhang Yanpeng, Tang Tiantong, et al. Self-deflection of steady-state spatial solitons in biased photorefractive-photovoltaic crystals[J]. Acta Optica Sinica, 2002, 22(2): 134-138.

[5] [5] Li Wenhui, Hu Manli, Ma Zhibo, et al. Temporal evolution and controllable factors for self-deflection of screening photovoltaic solitons in LiNbO3 crystal[J]. Acta Optica Sinica, 2012, 61(2): 020201.

[6] [6] Tian Ning, Lu Keqing, Zhang Xianfeng, et al. Influence of guiding parameters and propagation constants on photorefractive surface waves[J]. Chinese J Lasers, 2012, 39(1): 0117002.

[7] [7] Zhang T H, Ren X K, Wang B H, et al. Surface waves with photorefractive nonlinearity[J]. Physical Review A, 2007, 76(1): 013827.

[8] [8] Yang Bin, Qin Yali, Liu Xian, et al. Research on dipole solitons in optically-induced lattices[J]. Acta Optica Sinica, 2016, 36(7): 0719001.

[9] [9] Efremidis N K, Hudock J, Christodoulides D N, et al. Two-dimensional optical lattice solitons[J]. Physical Review Letters, 2003, 91(21): 213906.

[10] [10] Neshev D, Ostrovskaya E, Kivshar Y, et al. Spatial solitons in optically induced gratings[J]. Optics Letters, 2003, 28(9): 710-712.

[11] [11] Yang J, Chen Z. Defect solitons in photoniclattices[J]. Physical Review E, 2006, 73(2): 026609.

[12] [12] Zhu X, Wang H, Zheng L X. Defect solitons in Kagome optical lattices[J]. Optics Express, 2010, 18(20): 20786-20792.

[13] [13] Chen W H, Zhu X, Wu T W, et al. Defect solitons in two-dimensional optical lattices[J]. Optics Express, 2010, 18(11): 10956-10961.

[14] [14] Segev M, Shih M, Valley G C. Photorefractive screening solitons of high and low intensity[J]. Journal of Optical Society of America B, 1996, 13(4): 706-718.

[15] [15] DelRe E, Crosignani B, Tambruuini M, et al. One-dimensional steady-state photorefractive spatial solitons in centrosymmetric paraeletric potassium lithium tantalate niobate[J]. Optics Letters, 1998, 23(6): 421-423.

[16] [16] DelRe E, Tambruuini M, Segev M, et al. Two-dimensional photorefractive spatial solitons in centrosymmetric paraeletric potassium-lithium-tantalate-niobate[J]. Applied Physics Letters, 1998, 73(1): 16-18.

[17] [17] Li Bin, Sun Xiudong, Hou Chunfeng, et al. Incoherently coupled bright-dark screening-photovoltaic soliton pairs in biased photovoltaic photorefractive crystals[J]. Acta Physica Sinica, 2001, 50(9): 1709-1712.

[18] [18] Chen W, Lu K, Hui J, et al. Localized surface waves at the interface between linear dielectric and biased centrosymmetric photorefractive crystals[J]. Optics Express, 2013, 21(13): 15595-15602.

[19] [19] Ciattoni A, Marini A, Rizza C, et al. Collision and fusion of counterpropagating micrometer-sized optical beams in periodically biased photorefractive crystals[J]. Optics Letters, 2009, 34(7): 911-913.

[20] [20] Ji Xuanmang, Yao Jihuan, Jiang Qichang, et al. Temporal behavior of the low-amplitude dark and gray spatial solitons in centrosymmetric photorefractive media[J]. Acta Optica Sinica, 2011, 31(10): 1019001.

[21] [21] Hao L, Hou C, Wang X, et al. Coherently coupled bright-bright screening soliton pairs in biased centrosymmetric photorefractive crystals[J]. Optik-International Journal for Light and Electron Optics, 2016, 127(15): 5928-5934.

[22] [22] Zhan K, Hou C. Gap solitons supported by optical lattices in biased centrosymmetric photorefractive crystals[J]. Optics Communications, 2012, 285(17): 3649-3653.

[23] [23] Zhan K, Hou C, Hao T, et al. Spatial solitons in centrosymmetric photorefractive crystals due to the two-photo photorefractive effect[J]. Journal of Optics, 2010, 12(1): 015203.

[24] [24] Boguslawski M, Rose P, Denz C. Nondiffracting Kagome lattices[J]. Applied Physics Letters, 2011, 98(6): 061111.

[25] [25] Liu S, Lu K, Zhang Y, et al. Defect solitons in optically induced Kagome photonic lattices in photovoltaic-photorefractive crystals[J]. Optics Communications, 2014, 312: 258-262.

[26] [26] Law K,Saxena A, Kevrekidis P G, et al. Localized structures in Kagome lattices[J]. Physical Review A, 2009, 79(5): 053818.

[27] [27] Fleischer J W, Segev M, Efremidis N K, et al. Observation of two-dimensional discrete solitons in optically induced nonlinear photonic lattices[J]. Nature, 2003, 422(6928): 147-150.

[28] [28] Yang J, Makasyuk I, Bezryadina A, et al. Dipole and quadrupole solitons in optically induced two-dimensional photonic lattices: Theory and experiment[J]. Stud Appl Math, 2004, 113(4): 389-412.

[29] [29] Yang J,Lakoba T I. Universally-convergent squared-operator iteration methods for solitary waves in general nonlinear wave equations[J]. Studies in Applied Mathematics, 2007, 118(2): 153-197.

[30] [30] Yang J. Iteration methods for stability spectra of solitarywaves[J]. Journal of Computational Physics, 2008, 227(14): 6862-6876.