Second-Order Optical Nonlinearities in Perfluoroalkylsulfonyl Substituted Azo Dyes
作者:
Kazuo Hirota,
Masahiro Hosoda,
Kazuo Tai,
Bharat Joglekar,
Masaki Matsui,
Hiroshige Muramatsu,
期刊:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
(Taylor Available online 1995)
卷期:
Volume 267,
issue 1
页码: 83-88
ISSN:1058-725X
年代: 1995
DOI:10.1080/10587259508033977
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The second-order nonlinear optical coefficients d33(-2ω:ω, ω) of polymer films doped with novel azo dyes, which have a perfluoroalkylsulfonyl group as an electron acceptor and an extended π-electron conjugated system, are determined by second-harmonic generation (SHG) measurements. Thin polycarbonate (PC) film doped with 4-(4-(4-perfluorobutylsulfonylphenylazo) naphthylazo)-N-ethyl-N-hydroxyethylaniline showed a large d33value, 67 pm/V, at a wavelength of 1064 nm. The decay of the d33values was slow due to the stability of the molecular arrangement in a polymer matrix at high temperature. In addition, a side-chain nonlinear optical polymer with this novel disazo dye is synthesized and the decay of d33values is estimated.
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