Title

Two-Photon Absorption In Quadrupolar Bis(Acceptor)-Terminated Chromophores With Electron-Rich Bis(Heterocycle)Vinylene Bridges

Abstract

Two-photon absorption spectra for a range of bis(acceptor)-substituted bis(dibutoxythienyl)ethene and bis(N-hexylpyrrolyl)ethene chromophores have been recorded using Z-scan and white-light-continuum pump-probe techniques. All the chromophores studied show strong near-infrared two-photon absorption with cross sections in the range of 2400-5900 GM (1 GM = 1 × 10-50 cm 4 s/photon) at photon wavelengths between 1.0 and 1.3 μm; cross sections as high as 10000 GM can be accessed close to the one-photon absorption edge. Quantum-chemical calculations reproduce the experimentally observed variations of the two-photon properties with the chemical structure. © 2007 American Chemical Society.

Publication Date

2-6-2007

Publication Title

Chemistry of Materials

Volume

19

Issue

3

Number of Pages

432-442

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1021/cm061681l

Socpus ID

33847217301 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/33847217301

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