[1] [1] H. K. Shim, C. B. Yoon, J. I. Lee et al.. Synthesis, electroconductivity and third-order nonlinear optical property of poly(2-isopropoxy-5-methoxy-1, 4-phenylenevinylene) [J]. Polymer Bulletin, 1995, 34(2): 161～167

[3] [3] M. A. Bader, H.-M. Keller, G. Marowsky. Polymer-based waveguides and optical switching [J]. Opt. Materials, 1998, 9:334～341

[4] [4] T. Kaino, H. Kanbara, T. Kurihara et al.. Nonlinear optical properties of organic materials and their application for switching devices [J]. Molecular Crystals and Liquid Crystals Science and Technology Section B: Nonlinear Optics, 1994, 7(3-4):277～282

[6] [6] D. H. Hwang, J. I. Lee, H. K. Shim. Synthesis of poly[(2-(2-(4-cyanophenyl)ethenyl)-5-methoxy-1, 4-phenylene)vinylene] and poly(1,4-phenylenevinylene) copolymers: Electrical and the second- and third-order nonlinear optical properties [J]. Macromolecules, 1994, 27(21):6000～6006

[7] [7] H. L. Li, S. Rentsch, H. Bergner. Third order nonlinear optical properties of substituted poly (p-phenylene vinylene) derivatives [J]. Institute of Physics Conference Series, 1991, 126:231～234

[8] [8] A. Samoc, M. Samoc, B. Luther-Davies et al.. Third-order nonlinear optical properties of poly(p-phenylenevinylene) derivatives substituted at vinylene position [C]. SPIE, 1998, 3473:79～90

[9] [9] J. C. Tauc. Amorphous and Liquid Semiconductor [M]. New York: Plenum Press, 1974. 159