[1] A.P.L,,1981,Vol.38, No.9, P. 671.
[2] IEEE J,p,E.,1983, Vol.QE-19, No.4, P.500.
[3] Appl.Opt,,1981,Vol.20, No.20, P.3484.
[4] 第六届全国激光学术报告会会集:激光,1982年5月,第47页.
[5] Pays, Today.,1982, Vol.35, No.12, P.12.
[6] Laser and Optoelektronik, 1982, Vol.14, No.3,P.68