[1] [1] W. Schmid, F. P. Schafer; Phys. Lett., 1968, 26 A, 558.

[2] [2] D. J. Bradley; in "Ultrashort Light Pulses, Picosecond Techniques and Applications”, ed. S. L. Shapiro, Springer-Verlag, Berlin, 1977.

[3] [3] D. J. Kuizenga, A. E. Siegman; IEEE J. Quant. Electr., 1970, QE 6, 694; IEEE J. Quant. Electr., 1970, QE 6, 709.

[4] [4] I. Y. Tomov et al.; Rev. Sci. lustrum., 1979, 50, 9.

[5] [5] D. J. Kuizenga; Opt. Commun., 1977, 22, 156.

[6] [6] R. Fedosejevs et al.; IEEE J. Quant. Electr., 1980, QE-16, 985.

[7] [7] Β. H. Bipin et al.; Phys. Rev. Lett., 1977, 30, 611.

[8] [8] R. Fedosejevs et al.; Phys. Rev. Lett., 1977, 39, 932.

[9] [9] Yung—lu Teng et al.; Laboratory Eeport, PLF 43, Max-Planck-Institut fiir Quantenoptik, March 1981.

[10] [10] Yung-lu Teng et al.; Laboratory Report,PLF,41, Max-Planck-Institut fur Quantenoptik, Octor-ber 1980.

[11] [11] B. Fedosejevs, Yung-lu Teng, B. Sigel; J. Appl. Phys.,1981, 52, No. 6, 4186～4188.