Abstract
The title compound DMAHAS has been synthesized and characterized by 1 H-NMR spectra, IR spectra, and elemental analyses. Linear absorption, single-photon induced fluorescence and two-photon induced fluorescence are experimentally studied. This new dye has a moderate two-photon absorption cross-section of σ 2 = 0.91 2 10 m 46 cm 4 - s/photon at 532 nm by using an open aperture Z -scan technique. When pumped with 800 nm laser irradiation, DMAHAS shows a strong two-photon induced blue fluorescence of 432 nm.
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