[2] [2] B. B. Snavely; Electro-Optical System Design, 1973，5, No. 4, 30.

[3] [3] E. G. Smith; Second Gonference on the Laser, Annals of the New York Academy of Sclences, 1970, 168, Art. A3, 685.

[4] [4] P. P. Sorokin, J. E. Lankarad; IBMJ, Res. Develop, 1966, No. 10, 162.

[5] [5] O. V. Shank et al.; Appl. Phys. Lett., 1970，16，405.

[6] [6] J. A. Myer et al.; Appl. Phys. Lett.,1970, 16, 3.

[7] [7] B. A. Snavely; Proc. IEEE, 1969, 57, 1344.

[8] [8] O. M. Ferrar; Appl. Phys. Lett., 1973, 23, 548.

[9] [9] O. G. Peterson et al.，Appl. Phys. Lett., 1970, 17, 254; F. P. Schafer et al. J Phys. Lett., 1967. 24A, 280.

[10] [10] A. Dienes et al.; IEEE J., Quantum-Electron., OE-8, 1972, No. 3, 388.

[11] [11] B. Steye, P. P. Schafer; Opt. Comm., 1974, 10, 219.

[12] [12] P. W. Smith et al.; Appl. Phys. Lett.,1974, 25, 144.

[13] [13] P. Вunlamarchi, R. Pratesi; Appl. Phys. Lett., 1973, 22, No. 1, 334.

[14] [14] J. M. Yarboroagh; Appl. Phys. Lett., 1974, 24, 629.

[15] [15] F. P. Schafer; “dye Laser”，(1973, New York.)

[16] [16] D. Basting, F. P. Schafer; Appl. Phys., 1974, 3, No. 1, 81~88.

[17] [17] J. Bunkenburg; Rev. Sci. Instr., 1972, 43, No. 11, 1611.

[18] [18] J. A. Myeretal; Appl. Phys. Lett.，1970, 16, 3~5.

[19] [19] C. C. Wang, G. W. Eacette; Appl. Phys. Lett., 1965, 6, 169;

[20] [20] J. А. Gioramaine, R. C. Miller; Phys. Rеv. Lett., 1965, 14, 973.

[21] [21] D. C. Hanna et al., Appl. Phys., Lett., 1974, 25, 142.

[22] [22] E. O. Ammann et al.; Appl. Phys. Lett., 1970, 16, 309.

[23] [23] R. G. Smitb et al.; Appl. Phys. Lett., 1968, 12, 308.

[24] [24] R. L. Byer et al.; Apyl. Phys. Lett., 1968, 13, 109.

[25] [25] A. J. Alcock et al., Appl. Phys. Lett； 1973, 23, No. 10, 562.

[26] [26] H. Г. Басов и др.; ЖЭТФ, 1973, 64, 108.

[27] [27] C. K. N. Patel, Е. D. Shaw; Phys. Rеv., 1971, ВЗ, 1279.

[28] [28] J. М. Yarborough et al.，Appl. Phys. Lett., 1969, 15, 102.

[29] [29] J. M. Besson et. al.; Appl. Phys. Lett., 1965, 1, 206.

[30] [30] R. W. Wallace; Appl. Phys. Lett., 1970, 17, 497.

[31] [31] L. F. Mollenauer D. H. Olsow; Appl. Phys. Lett., 1974, 24, 386.

[32] [32] S. M. Jarrett; Electro-Optical Systems Design, 1973, 5； No. 10, 24~27.

[33] [33] H. Г. Басов, E. П. Маркин и др.; Природа, 1973, No.5, 18~26.

[34] [34] C. B. Moore; Laser Focus,1974, 10, No. 4, 65.