[1] [1] Alfano R R, Shapiro S L. Phys. Rev. Lett., 1970, 24(11): 584.

[2] [2] Smith W Lee, Liu P, Bloembergen N. Phys. Rev. A, 1977, 15(6): 2396.

[3] [3] Corkum P B, Ho P P, Alfano R R, et al Opt. Lett., 1985, 10(12): 624.

[4] [4] Morioka T, Takara H, Kawanishi S, et al. Electronics Lett., 1996, 32(10): 906.

[5] [5] Cundiff S T, Ye J, Hall J L. Rev. Sci. Instrum., 2001, 72: 3749.

[6] [6] Hartl I, Li X D, Chudoba C, et al. Opt. Lett., 2001, 26(9): 608.

[9] [9] Baldeck P L, Alfano R R. Journal of Lightwave Technology, 1987, 5(12): 1712.

[10] [10] Birks T A, Wadsworth W J, Russell St P J. Opt. Lett., 2000, 25(19): 1415.

[11] [11] Limin Tong, Rafael R Gattass, Jonathan B Ashcom, et al. Nature, 2003, 426(18): 816.

[12] [12] Limin Tong, Jingyi Lou, Eric Mazur. Opt. Express, 2004, 12(6): 1025.

[13] [13] Foster M A, Gaeta A L. Opt. Express, 2004, 12(14): 3137.

[14] [14] Husakou A V, Herrmann J. Phys. Rev. Lett., 2001, 87(20): 203.

[15] [15] LU F, Lin Q, Knox W H, et al. Phys. Rev. Lett., 2004, 93(18): 183901.