Three-photon absorption in a push-pull type chromophore containing tricyanofuran acceptor |
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| Authors: | Yan Jia Ying Qiana Zhi Qiang Zhoub Wei Lua Yi Ping Cuib a |
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| Institution: | School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China ; Advanced Photonics Center, Southeast University, Nanjing 210096, China |
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| Abstract: | 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 cm6 s2 in the solution of DMF and 12.3×10-79 cm6 s2 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. |
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| Keywords: | Three-photon absorption Optical power limiting Nonlinear transmission method Push-pull chromophore TCF |
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