Three-photon absorption in a push-pull type chromophore containing tricyanofuran acceptor

Three-photon absorption (3PA) of a push pull chromophore, 2-(3-cyano-(3-(4-(dimethylamino)styryl)-5, 5-dimethylcyclohex2-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 nm were 36.8 x 10(-79) cm(6) s(2) in the solution of DMF and 12.3 x 10(-79) CM6 S-2 in the solution of CH2Cl2, 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. (C) 2012 Ying Qian. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.