Abstract
Solid-state dye samples based on polymethyl methacrylate (PMMA) doped with different concentrations of the dye PM650 were prepared. With SHG of Q-switched Nd:YAG laser (532 nm, ∼15 ns) pumping the samples longitudinally, the fluorescence, lasing spectra and slope efficiencies of the samples were obtained. The highest slope efficiency 27.49% and laser output energy 22.0 mJ was achieved in the sample with a dye concentration of 2.0 × 10−4 mol/L. To our knowledge, the results are the best under the same condition so far. The maxima of output lasing spectrum is about 653.5 nm. Our results have shown that using solid-state samples doped with PM650 can extend the dye laser wavelength to the red.
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Wang, G.M., Zhang, Z.H. Solid-state dye lasers based on polymethyl methacrylate doped with pyrromethene 650. Laser Phys. 20, 1865–1867 (2010). https://doi.org/10.1134/S1054660X10190163
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DOI: https://doi.org/10.1134/S1054660X10190163