High-pressure synthesis, growth and characterization of large-size BaGa4Se7 crystals

•Polycrystalline sample of BGSe was synthesized by high pressure method firstly.•High quality BGSe single crystal with dimensions of Φ40 mm × 180 mm was grown.•The absorption coefficient of a 2.5 mm thick device is 0.017 cm−1@4 μm.•The laser damage threshold was measured to be 7.075 J/cm2 using a 1....

Ausführliche Beschreibung