Influence of Cu nanoparticles on absorption and luminescent properties of Oxazine 1 in ethanol

Abstract

Researches have shown that by adding Cu NPs C = 5 * 10-6 mol/l in a solution of dye the optical density at the absorption maximum is increased in 1.14 times. Fluorescence intensity at the maximum becomes 1.1 times bigger. Position of maxima of the bands and their half-widths are not changed. Threshold of the stimulated emission reduced and equals 5/8 of its initial value. The duration of the laser pulse is reduced by 0.3 ns.