[1] [1] M. Albota, D. Beljonne, J.-L. Bredas et al.. Design of organic molecules with large two-photon absorption cross sections [J]. Science, 1998, 281(5383):1653～1656

[2] [2] G. S. He, R. Signorini, P. N. Prasad. Two-photon-pumped frequency-upconverted blue lasing in Coumarin dye solution [J]. Appl. Opt., 1998, 37(24):5720～5726

[3] [3] J. Oberle, L. Bramerie, G. Jonusauskas et al.. Optical-limiting properties of a push-pull diphenyl-butadiene [J]. Opt. Comm., 1999, 169:325～332

[4] [4] D. A. Parthenopoulos, P. M. Rentzepis. Three-dimensional optical storage memory [J]. Science, 1989, 245(4920):843～845

[5] [5] W. Denk, J. H. Strickler, W. W. Webb. Two-photon laser scanning fluorescence microscopy [J]. Science, 1990, 248(4951):73～76

[6] [6] Jayant D. Bhawalkar, Guang S. He, Chi-Kyun Park et al.. Efficient two-photon pumped green upconverted cavity lasing in a new dye [J]. Opt. Comm., 1996, 124:33～37

[7] [7] Mariacristina Rumi, Jeffrey E. Ehrilich, Ahmed A. Heikal et al.. Structure-property relationships for two-photon absorbing chromophores: bis-donor diphenylpolyene and bis(styryl)benzene derivatives [J]. J. Am. Chem. Soc., 2000, 122:9500～9510