Abstract

We report the results on infrared transmission measurements of non-doped and tellurium-doped crystals of zinc selenide grown from the melt. It was found that non-doped samples feature high transmission (50%–60%) for the wavelengths of 1–22 μm. The efficient scintillating crystals of ZnSe(Te) are almost opaque for $\lambda >7\mathrm{\mu m}$. Doping these samples with ytterbium from the gas phase does not achieve any significant transmission increase for non-doped ZnSe samples in the spectral range of 1–22 μm. However, it considerably increases (up to 50%) transmission for doped ZnSe(Te) at the wavelengths $\lambda >10\mathrm{\mu m}$. These optical peculiarities were analyzed taking into account restructurization of point defect ensembles created by Te and Yb impurities.

© 2016 Optical Society of America

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