[1] Gabay I, Smilanski L A et al. IEEE J. Quant. Electr. 1977Q; E-13: 364

[2] Emilio Sovero, Che Jenchen, Culick F E C. J. Appl. Phys. 1976; 47(10): 4538~4542

[3] Kushner N J. IEEE J. Qnant. Electr., 1981; QE-17(8): 1555~1565

[4] Kushner N J. J. Appl. Phys., 1980; 51 (6): 3020~3032

[5] Mandich Mary et al. J. Chem. Phys., 1982; 77 (2): 702

[6] Astadjov D N et al. Opt. Commun., 1984; 51 (2): 85

[7] Harstao Kenneth G. IEEE J. Quant. Electr., 1983: QE-19(1): 88