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Three-photon absorption(3PA) of a push-pull chromophore,2-(3-cyano-(3-(4-(dimethylamino)styryl)-5,5-dimethylcyclohex- 2-enylidene)methyl)-5,5-dimethylfuran-2-ylidene) malononitrile(CFM) including TCF group was measured by the nonlinear transmission method using a femto-second Ti:Sapphire oscillator-amplifier laser system.Its three-photon absorption cross-sections at 1300 ran were 36.8×10~(-79) cm~6 s~2 in the solution of DMF and 12.3×10~(-79) cm~6 s~2 in the solution of CH_2Cl_2,respectively.The large values were got by experiments in this paper,which is a new exploration for these kinds of materials.The molecule has the potential application foreground of 3PA areas and optical power limiting.
Three-photon absorption (3PA) of a push-pull chromophore, 2- (3- cyano- (3- (dimethylamino) styryl) -5,5-dimethylcyclohex- 2- enylidene) dimethylfuran-2-ylidene) malononitrile (CFM) including TCF group was measured by the nonlinear transmission method using a femto-second Ti: Sapphire oscillator-amplifier laser system.Its three-photon absorption cross-sections at 1300 ran were 36.8 × 10 ~ (-79) cm ~ 6 s ~ 2 in the solution of DMF and 12.3 × 10 ~ (-79) cm ~ 6 s ~ 2 in the solution of CH_2Cl_2, respectively.The large values were got by experiments in this paper, which is a new exploration for these kinds of materials. The molecule has the potential application foreground of 3PA areas and optical power limiting.