[1] R. A. Myers, N. Mukherjee, S. R. J. Brueck. Large second-order nonlinearity in poled fused silica. Opt. Lett., 1991, 16(22):1732～1734

[2] T. Fujiwara, M. Takahashi, A. J. Ikushima. Second-harmonic generation in germanosilicate glass poled with ArF laser irradiation. Appl. Phys. Lett., 1997, 71(8):1032～1034

[3] P. G. Kazansky, P. S. J. Russel. Thermally poled glass: frozen-in electric field or oriented dipoles Opt. Comm., 1994, 110(5,6):611～614

[4] T. G. Alley, S. R. J. Brueck, R. A. Myers. Space charge dynamics in thermally poled fused silica. J. Non-Cryst. Solids, 1998, 242(2/3):165～181

[5] V. Mizrahi, Y. Hibino, G. Stegeman. Polarization study of photoinduced second-harmonic generation in glass optical fibers. Opt. Comm., 1990, 78(3/4):283～288

[6] Y. R. Shen. The Principles of Nonlinear Optics. New York: Wiley, 1984. Chap.11, 196～199

[7] R. W. Boyd. Nonlinear Optics. New York: Academic Press Inc., 1992. Chap.4, 178～189

[8] Liu Xueming, Zhang Mingde, Sun Xiaohan. Model for thermal/electric-field poling of fused silica. Acta Physica Sinica (物理学报), 2000, 49(3):538～543 (in Chinese)

[9] A. H. Edwards, W. B. Fowler. Theory of the peroxy-radical defect in α-SiO2. Phys. Rev. B, 1982, 26(10):6649～6660