[3] Begishev I A,Kalashnikov M,Karpov V,et al.Limitation of second-harmonic generation of femtosecond Ti:sapphire laser pulses[J].J.Opt.Soc.Am.B,2004,21(2):318-322

[4] Krylov V,Kalintsev A,Rebane A,et al.Second,third and fourth harmonic generation of amplified femtosecond Ti:sapphire laser pulses[J].SPIE,1996,2701:24-30

[5] Banks P S,Feit M D,Perry M D.High-intensity third-harmonic generation[J].J.Opt.Soc.Am.B,2000,19(1):102-118

[6] Zhang T,Yamakawa k Numerical analysis of type I third-harmonic generation through third-order and cascaded second-order nonlinear optical processes[J].Jpn.J.Appl.Phys,2000,39:91-95