Abstract
We report optically pumped lasing action at the attractive wavelength of 650 nm in the common organic dye 1-amino-2-methylanthraquinone (Disperse Orange 11). The dye was incorporated into poly(methyl methacrylate) rods, and amplified spontaneous emission was studied under second-harmonic Nd:YAG laser excitation in a transverse pumping configuration. Gain and conversion efficiency were found to be comparable with those for other laser dyes. Dye photodegradation was found to be superior and reversible.
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