[1] [1] C. K. N. Patel; Phys. Rev., 1964, 136, No. 5A, 1187～1193.

[2] [2] I. Wieder, G. B. McCurdy; Phys. Rev. Lett., 1966, 16, No.13, 565～567.

[3] [3] G. B. McOurdy, I. Wieder; IEEE J. Quant. Electr., 1966,QE-2, 385～387.

[4] [4] G. B. Jacobs, H. C. Bowers; J. Appl. Phys., 1967, 38, No. 6,2692～2693.

[5] [5] J. C. Siddoway; J. Appl. Phys., 1968, 39, 4854～4855.

[6] [6] Charles Freed et al.; IEEE J. Quant. Electr., 1980, QE-16, No. 11, 1195.

[7] [7] Charles Freed; IEEE J. Quant. Electr., 1982, QE-18, No. 8, 1220～1228.

[8] [8] M. Silver et at.; J. Appl. Phys., 1970, 41, 4566～4568.

[9] [9] W. H. Green, W. T. Whituey; J. Appl. Phys., 1970, 41, No. 1, 437.

[10] [10] J. C. Stephensen et al.; J. Chem. Phys., 1968, 48, 4790.

[11] [11] R. D. Sharma; Phys. Rev., J969, 177, 102.

[12] [12] B. K. Plyer et al.; J. Res. Nat. Bur. Stand., (us), 1955, 55, 183.