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Effects of processing on all‐optical poling characteristics of guest‐host azo‐dye polymer thin films
Author(s) -
Tan Jing,
Li AiDong,
Fan XiZhi,
Liu WenChao,
Xu ZuXun,
Lin Yang,
Wang HuiTian,
Wu Di,
Ming Naiben
Publication year - 2007
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200622035
Subject(s) - poling , chromophore , polycarbonate , materials science , polymer , methyl methacrylate , nonlinear optical , spin coating , substrate (aquarium) , second harmonic generation , chemical engineering , thin film , coating , polymer chemistry , optoelectronics , photochemistry , optics , composite material , chemistry , nonlinear system , nanotechnology , ferroelectricity , polymerization , dielectric , laser , oceanography , engineering , quantum mechanics , physics , geology
Several kinds of azo‐dye polymer films of the guest‐host system were prepared by the spin‐coating method. Four disperse red (DR) dyes of DR1, DR19, DR54 and DR73 were chosen as second order nonlinear optical active chromophores with polymer matrixes such as poly (methyl methacrylate) PMMA or polycarbonate (PC). The processing conditions such as heat‐treatment, substrate, and film storage condition on all‐optical poling characteristics of azopolymers have been investigated. It is found that the second harmonic generation intensity is very sensitive to the chromophores and processing parameters. Some explanations have been proposed. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)