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Measurements of the Hardness and Young’s Modulus of the Nonlinear Optical Crystals BaGa4S7 and BaGa4Se7 (JTu4A.8)

Presenter: Valentin Petrov, Max Born Institute

We report hardness and Young’s modulus measurements for two recently developed and very promising non-chalcopyrite mid-IR crystals, BaGa4S7 and BaGa4Se7. The hardness is 556.2 kg/mm2 for the sulfide and 336 kg/mm2 for the selenide compound.

Authors:Ginka Exner, Plovdiv University Paisii Hilendarski / Aleksandar Grigorov, Plovdiv University Paisii Hilendarski / Valeriy Badikov, Kuban State University / Valentin Petrov, Max Born Institute

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