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标题：IR Li₂Ga₂GeS₆ nanocrystallized GeS₂-Ga₂S₃-Li₂S electroconductive chalcogenide glass with good nonlinearity
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作者：Qiming Liu ; Peng Zhang
期刊名称：Scientific Reports
电子版ISSN：2045-2322
出版年度：2014
卷号：4
DOI：10.1038/srep05719
出版社：Springer Nature
摘要：GeS₂-Ga₂S₃-Li₂S electroconductive glasses were prepared by the conventional melt-quenching method through carefully controlling the heating rate. Comparing with the reference of glass-forming region, our investigated GeS₂-Ga₂S₃-Li₂S system was extended to the cation ratio of 0–20% Li with around 40% Ga. GeS₂-Ga₂S₃-Li₂S glass-ceramics containing IR Li₂Ga₂GeS₆ nonlinear nanocrystals were obtained by the more carefully controlled heating rate. Its optical nonlinearity was investigated by the Maker fringe measurements, the maximum second harmonic intensity was observed to be 0.35 of the reference Z-cut quartz. IR Li₂Ga₂GeS₆ nonlinear crystals were directly obtained at the composition of 40GeS₂-30GaS_1.5-30LiS_0.5.