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Two-Photon Absorption in Quadrupolar Bis(acceptor)-Terminated Chromophores with Electron-Rich Bis(heterocycle)vinylene Bridges

Authors :
⊥ Sei-Hum Jiang
Yuanping Yi
Alex K.-Y. Jen
Amalia Leclercq
David J. Hagan
Stephen Barlow
Shijun Zheng
Jie Fu
† and Jean-Luc Brédas
Jingdong Luo
Luca Beverina
Lazaro A. Padilha
Karin Schmidt
Zhigang Shuai
Egbert Zojer
Eric W. Van Stryland
Seth R. Marder
Zheng, S
Leclercq, A
Fu, J
Beverina, L
Padilha, L
Zojer, E
Schmidt, K
Barlow, S
Luo, J
Jiang, S
Jen, A
Yi, Y
Shuai, Z
Van Stryland, E
Hagan, D
Bredas, J
Marder, S
Publication Year :
2007
Publisher :
American Chemical Society, 2007.

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.

Details

Language :
English
Database :
OpenAIRE
Accession number :
edsair.doi.dedup.....535c488cc35713d049cb4f6a85d986b4