Abstract
A technique for growing bulk zinc selenide polycrystals, doped with iron ions, by chemical vapor deposition (CVD), has been developed. It has been shown that iron is embedded in the crystal lattice of deposited zinc selenide in the optically active state of Fe2+. To improve the optical quality, the grown material was subjected to postgrowth hot isostatic pressing (HIP) treatment. It was experimentally demonstrated that the synthesised bulk crystals can be used as the active media of Fe2+:ZnSe lasers and as the passive Q-switches for three-micron lasers. The letter goes on to discuss the prospect of extending the proposed method to the synthesis of zinc sulphide doped with iron ions.
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