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Optical and lasing characteristics of single-crystal CdSe:Cr2+ active elements grown by the Bridgman method

N. O. Kovalenko, A. K. Kapustnik, A. S. Gerasimenko, O. N. Eremeĭkin, A. S. Egorov, and D. S. Sofronov

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Abstract

The Bridgman method has been used to grow CdSe ingots doped with Cr2+ ions at a rate of 1.5 mm/h. A method of co-doping the given material with a Ag acceptor impurity is proposed in order to increase the resistivity and reduce the optical losses in the CdSe:Cr2+ crystals caused by absorption at free charge carriers. Lasing in the mid-IR region (2.65–2.8 μm) is obtained in the as-grown CdSe:Cr2+ samples.

© 2017 Optical Society of America

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