[1] Cheng Z,Fürbach A,Sartania S et al.Opt Lett,1999,24 (4):247~249.
[2] Brabec T,Krausz F. Phys Rev Lett,1997,78 (17):3282~3285.
[3] Xu L,Spielmann Ch,Poppe A et al.Opt Lett,1996,21(24):2008~2010.
[4] Reichert J,Holzwarth R,Udem Th et al.Opt Commun,1999,172(1~6):59~68.
[5] Christov I P. Opt Lett,1999,24(20):1425~1427.
[6] Scrinzi A,Geissler M,Brabec T. Phys Rev Lett,2001,86(3):412~415.
[7] Yariv A. Quantum Electronics. New York: Wiley,1988.