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BGSe crystal BaGa4Se7 crystal

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High-quality crystals of BGSe (BaGa4Se7), a newly developed IR nonlinear optical (NLO) material, were obtained via the Bridgman–Stockbarger technique. This crystal exhibits high transmittance over the wide range of 0.47–18 μm, except for an absorption peak at around 15 μm.