Hyper-Rayleigh scattering and frequency dependence of the first molecular hyperpolarizability of a strong charge-transfer chromophore

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Original languageEnglish
Pages (from-to)6237-6244
Journal / PublicationJournal of Chemical Physics
Volume119
Issue number12
Publication statusPublished - 22 Sept 2003
Externally publishedYes

Abstract

The frequency dependence of the first molecular hyperpolarizability β of a thiophene based charge-transfer chromophore was measured. A number of excitation wavelengths emitted from an optical parametric amplifier pumped by a 1 KHz 130 fs Ti/sapphire laser were used. It was observed that the excitation wavelength covers the resonance and nonresonance region of the charge transfer chromophore.

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