[1] | R.Main, Lasers&Applications, 1985, Vol 5, No.3,P.101. |
[2] | C.Willett, "Introduction to Gas Lasers: Population InversionMechanisms". |
[3] | H.Marantz, R.I. Rudko and C.r.Tang, IEEE J.Q.E, 1969, QE-5,No.1, P.38. |
[4] | R.Solanki, G.J.Collins et al.,Appl.Phys.Lett.,1979, No.35, P.317. |
[5] | Y.Pacheva et al.Opt, Commun.,1978, Vol.27, No.1, P.121. |
[6] | M.Jannossy, K.Rozsa, P.Apal and L,Csillag, Opt.Commun, 1984,Vol.49, No.4,P.278. |