25 February 1993 New stilbene compounds for nonlinear optics
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New organic dyes containing as well a stilbene as an azomethine unit have been synthesized. Some of the compounds show liquid crystalline behavior with interesting phase sequences. Second Harmonic Generation (SHG) Experiments on polymer films consisting of a mixture of poly(methylmetacrylate) (PMMA) with 1% dye show values for the nonlinear optical coefficient in the range of 0.17 - 0.27 pm/V.
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Thomas Weyrauch, Thomas Weyrauch, Thomas Hanemann, Thomas Hanemann, E. A. Soto Bustamante, E. A. Soto Bustamante, Wolfgang Haase, Wolfgang Haase, "New stilbene compounds for nonlinear optics", Proc. SPIE 1775, Nonlinear Optical Properties of Organic Materials V, (25 February 1993); doi: 10.1117/12.139198; https://doi.org/10.1117/12.139198

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