15 May 1994 Second-order optical nonlinearities of novel disazo dyes having a perfluoroalkylsulfonyl group
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Abstract
The second-order nonlinear optical coefficients d33 (-2(omega) :(omega) ,(omega) ) of polymer films doped with novel disazo dyes, that have a perfluoroalkylsulfonyl group as an electron acceptor and an extended (pi) - electron system, are determined by second-harmonic generation (SHG) measurements at wavelengths of 900 - 1550 nm. Thin polycarbonate (PC) film doped with 4-(4-(4- perfluorobutylsulfonylphenylazo) naphthylazo)-N-ethyl-N-hydroxyethylaniline showed a large d33 value, 67 pm/V, at a wavelength of 1064 nm. The decay of the d33 value was slow due to the stability of the molecular arrangement in a polymer matrix at high temperature. The large d33 values and the stability of polymer films doped with novel disazo dyes in this study are discussed in terms of electron acceptor substitution and an extended (pi) -electron system.
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Kazuo Hirota, Masahiro Hosoda, Kazuo Tai, Baratie Joglekar, Masaki Matsui, Hiroshi Muramatsu, "Second-order optical nonlinearities of novel disazo dyes having a perfluoroalkylsulfonyl group", Proc. SPIE 2143, Organic, Metallo-Organic, and Polymeric Materials for Nonlinear Optical Applications, (15 May 1994); doi: 10.1117/12.173812; https://doi.org/10.1117/12.173812
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