Stilbazolium salt and optically non-linear devices incorporating same
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United States of America Patent
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Mar 16, 1993
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Jun 10, 1991
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Jun 10, 1991
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Abstract
4'-Dimethylamino-4-methylstilbazolium methanesulfonate is prepared by the reaction of methyl methanesulfonate with 4-picoline followed by condensation with p-dimethylaminobenzaldehyde. Its hydrated form has second harmonic generation optical properties, but this is not true of the anhydrous form. Thus, the hydrated form is useful in the production of optical waveguides, spatial light modulators and the like.
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