24 February 2017 Fe:CdMnTe active material spectroscopic properties and laser generation around 5 μm
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Abstract
Fe2+:Cd1-xMnxTe solid solution spectroscopic and lasing properties depending on temperature and Mn concentration x were investigated. A set of Fe2+:Cd1-xMnxTe crystals with different concentration of Mn (x = 0.1, 0.52, 0.68, and 0.78) was synthesized using Bridgeman technique with the Fe2+ ions doping (c ~ 1017 cm-3) during the synthesis process. The absorption spectra are broad covering the range from 2700 to 6000 nm with the maximum around 3500 nm. The fluorescence spectra are also broad ranging from 3500 nm to 7000 nm. The Fe2+:Cd1-xMnxTe laser oscillations at 77 K under short pulse (~200 ns) Fe:ZnSe cryogenically-cooled 4080 nm laser pumping and under long pulse (~150 us) Dy3+:PbGa2S4 4330 nm pumping were achieved successfully. The output energy of ~3 μJ was achieved in both cases. The oscillation spectrum maxima at 77 K were ~4950 nm for x = 0.1; ~5130 nm for x= 0.52; and ~5300 nm for x=0.78.
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Helena Jelínková, Maxim E. Doroshenko, Michal Jelínek, Jan Šulc, Michal Němec, Vjatcheslav V. Osiko, Nazar O. Kovalenko, Igor S. Terzin, "Fe:CdMnTe active material spectroscopic properties and laser generation around 5 μm", Proc. SPIE 10082, Solid State Lasers XXVI: Technology and Devices, 100820F (24 February 2017); doi: 10.1117/12.2252317; https://doi.org/10.1117/12.2252317
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