[1] [1] Backus S, Durfee Ⅲ C G, Murnae M M et al.. High power ultrafast lasers. Review of Scientific Instruments, 1998, 69(3):1207～1223

[3] [3] Ross I N, Matousek P, Towrie M et al.. The prospects for ultrashort pulse duration and ultrahigh intensity using optical parametric chirped pulse amplifiers. Opt. Commun., 1997, 144(1):125～133

[4] [4] Akira S, Takayoshi K. Noncollinearly phase-matched femotosecond optical parametric amplification with a 2000 cm-1 bandwidth. Appl. Phys. Lett., 1998, 72(2):147～149

[5] [5] Cerullo G, Nisoli M, Stagira S et al.. Sub-8-fs pulses from an ultrabroadband optical parametric amplifier in the visible. Opt. Lett., 1998, 23(11):1283～1285

[6] [6] Sutherland R L. Handbook of Nonlinear Optics.New York: Marcel Dekker, 1996. 121～147

[7] [7] Cerullo G, Nisoli M, Silvestri S D. Generation of 11 fs pulses tunable across the visible by optical parametric amplification. Appl. Phys. Lett., 1997, 71(25):3616～3618