[1] Chang Zenghu,Rundquist A,Wang Haiwen et al..Generation of coherent soft X rays at 2.7 nm using high harmonics.Phys.Rev.Lett.,1997,79;16:2967～2970

[2] Pulsifer P,Apruzese J P,Davis J et al..Residual energy and its effect on gain in a Lyman-α laser.Phys.Rev.;A,1994,49;5:3958～3965

[3] Chichkov B N,Egbert A,Eichmann H et al..Soft-X-ray lasing to the ground states in low-charged oxygen ions.Phys.Rev.;A,1991,52;2:1629～1639

[4] Lemoff B E,Barty C P J,Harris S E.Femtosecond-pulse-driven,electron-excited XUV lasers in eight-times-ionized noble gases.Opt.Lett.,1994,19;8:569～571

[5] Burnett N H,Corkum P B.Cold-plasma production for recombination extreme-ultraviolet lasers by optical-field-induced ionization.J.Opt.Soc.Am.;B,1989,6;6:1195～1199

[6] Corkum P B,Burnett N H,Bunel F.Above-threshold ionization in the long-wavelength limit.Phys.Rev.Lett.,1989,62;11:1259～1262

[7] Penestrante B M,Bardsley J N.Residual energy in plasmas produced by intense subpicosecond lasers.Phys.Rev.;A,1991,43;6:3100～3113

[8] He Bin,Chang Te-qiang,Chen Shi-gang et al..Residual energy in optical-field ionized plasmas with particle simulation.J.Phys.;D: Appl.Phys.,1997,30;3:400～406

[9] Келдыш Л В. Ионизациявполесилънойэлектрома гнитнойволны. ЖурналЭксперименталънойиТеоре цическойФизики, 1964, 47: 1945～1957

[10] Augst S,Strickland D,Meyerhofer D D et al..Tunning ionization of noble gases in a high-intensity laser field.Phys.Rev.;A,1989,63;20:2212～2215

[11] Ammosov M V,Delone N B,Krainov V P.Tunnel ionization of complex atoms and of atomic ions in an alternating electromagnetic field.Sov.Phys.-JETP,1986,64;6:1191～1194

[12] Chin S L,Liang Y,Decker J E et al..Tunneling ionization of diatomic molecules by an intense CO2 laser.J.Phys.;B,1992,25;10:L249～L255

[13] Perry M D,Landen O L,Szoke A et al..Multiphoton ionization of the noble gases by an intense 1014 W/cm2 dye laser.Phys.Rev.;A,1987,37;3:747～760

[14] 徐至展,Vigroux L,Saviot F et al..输出2 TW/45 fs 的掺钛宝石超短脉冲强激光系统.中国科学; A, 1997, 27; 7: 640～645