Journal
CHEMICAL PHYSICS LETTERS
Volume 716, Issue -, Pages 252-256Publisher
ELSEVIER
DOI: 10.1016/j.cplett.2018.11.059
Keywords
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Funding
- Foundation of Hubei Province innovation group project [2017CFA006]
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A new octupolar compound 2,4,6-tris{4[4-(dibutylamino)phenylethynyllphenyl]-1,3,5-triazine was synthesized and characterized. The first hyperpolarizability beta of it has been investigated by Hyper-Rayleigh scattering (HRS) measurements. A facile data processing method was proposed to eliminate the influence of the relatively weak three-photo-absorption induced fluorescence (3PF) irradiated by laser beam at lambda = 1500 nm. The values of beta(1500) and beta(0)(1500) are close to those obtained at lambda = 1600 nm laser beam at which no multi-photon-absorption induced fluorescence is detected, validating this method. This method is useful for the investigation of the first hyperpolarizability beta with weak absorption induced fluorescence.
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