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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Non-linear optical properties of chalcogenide glasses in the system As-S-Se
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Non-linear optical properties of chalcogenide glasses in the system As-S-Se

机译：As-S-Se体系中硫族化物玻璃的非线性光学性质

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摘要

We report results of a systematic study examining the relationship of bond type and concentration to the linear and non-linear optical properties of As-S-Se glasses. The effects of iso-structural substitution of Se for S and the resulting impact on structure and the non-linear refractive index, n_2, are discussed.Non-linear optical properties of As-S-Se chalcogenide glasses were measured by the Z-scan technique at 1.6 #mu#m, and measured n_2 up to 400 times the n_2 for silica were observed. Such large n_2 for glasses with small As/(S+Se) molar ratios is correlated with the presence of covalent, homopolar Se-Se bonds in the glass structure as identified by Raman spectroscopy, and can not be attributed to any red shift in the absorption edge or to a resonant effect. The suitability of these glasses for planar waveguides based on such nonlinear properties is thus confirmed, and recent fabrication results are described.
机译：我们报告了一项系统研究的结果，该研究研究了键类型和浓度与As-S-Se玻璃的线性和非线性光学性质之间的关系。讨论了硒的同构取代S的影响及其对结构和非线性折射率n_2的影响。通过Z扫描测量了As-S-Se硫族化物玻璃的非线性光学性质在1.6＃μm下使用n.O.C.技术，观察到n_2高达二氧化硅的n_2的400倍。对于具有低As /（S + Se）摩尔比的玻璃来说，如此大的n_2与拉曼光谱法确定的玻璃结构中共价，同极性的Se-Se键的存在有关，并且不能归因于玻璃中的任何红移。吸收边缘或产生共振效应。因此，证实了基于这种非线性特性的这些玻璃对于平面波导的适用性，并且描述了最近的制造结果。

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