[1] [1] Eimerl D, Velsko S, Davis L et al.. Progress in nonlinear optical materials for high power lasers. Progress in Crystal Growth and Characterization of Materials, 1990, 20(1,2):59～113

[2] [2] Bakker J J, Planken P C M, Kuipers L et al.. Phase modulation in second-order nonlinear-optical processes. Phys. Rev. (A), 1990, 42:(7):4085～4101

[4] [4] Armstrong J A, Bloembergen N, Ducuing J et al.. Interaction between light waves in a nonlinear dieletric. Phys. Rev., 1962, 127(5):1918～1931

[5] [5] Smith A, Bowers M S. Phase distortions in sum- and difference-frequency mixing in crystals. J. Opt. Soc. Am. (B), 1995, 12(1):49～57