1Univ. of Latvia (Latvia) 2Lab. des Propriétés Optiques des Matériaux et Applications, CNRS, Univ. d'Angers (France) 3Institute of Physical Energetics (Latvia)
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Many organic compounds in solid state have nonlinear optical properties due to the orientation of the molecules in a
polymer matrix. In this work, all-optical poling and second harmonic generation in a composition consisting of 1 mass%
of N,N-dimethylaminobenzylidene 1,3-indandione (DMABI) compound in poly(methyl methacrylate) (PMMA) matrix
were studied. Thin films were prepared by solvent casting. The 1.064-μm fundamental and 532-nm second harmonic
wavelengths of a Nd:YAG laser were used. It is shown that DMABI molecules can be oriented by the method of all-
optical poling, and that the process is related to the photoinduced switching between two equally stable states of the
molecule.
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Aivars Vembris, Aleksandra Apostoluk, Martins Rutkis, Andrey Tokmakov, Inta Muzikante, Sylvie Dabos-Seignon, Jean-Michel Nunzi, "All-optical poling of DMABI molecules in a polymer matrix," Proc. SPIE 5946, Optical Materials and Applications, 59460P (12 June 2006); https://doi.org/10.1117/12.639195