Non linear optics in zirconium phosphate layered phases

Abstract The stilbazolium chromophore 4-[4-(dimethylamino)-α-styryl]-1-methylpyridinium (DAMS) ion can be exchanged with the α and γ forms of 7, irconium phosphate to give single phase materials of interlayer distance 16.5 and 16.4 A respectively. The latter has a second harmonic generation efficiency, measured at 1.9 μm, equal to that of urea, whilst the former is inactive. Both compounds have been characterised by fluorescence emission and visible spectroscopies.

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