A photoresponsive laser dye containing photochromic dithienylethene units
Abstract
A novel molecule, containing two photochromic dithienylethene moieties linked to a fluorescent bis(phenylethynyl)- anthracene residue has been prepared, and shows a reversible change in its fluorescence quantum yield from 0.001 to 0.83, and a corresponding increase in laser emission intensity, on exposure to UV light.