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Influence of the pumping wavelength on laser properties of Fe2+ ions in ZnSe crystal

Maxim E. Doroshenko, Helena Jelínková, Michal Jelínek, David Vyhlídal, Jan Šulc, N. O. Kovalenko, and I. S. Terzin

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Abstract

ZnSe:Fe2+ active laser crystal properties at different excitation wavelengths (2.94 and 4.1 μm) were investigated, and noticeable variations of the fluorescence spectra shape and their maxima positions, as well as changes in decay times, were observed. A stepwise shift of the laser oscillation wavelength from 4.7 μm at 2.94 μm pumping to 4.95 μm at 4.1 μm pumping was achieved at room temperature.

© 2019 Optical Society of America

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