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Studies of optical non-linearities of chalcogenide and heavy-metal oxide glasses

机译:硫族化物和重金属氧化物玻璃的光学非线性研究

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摘要

We present measurements of third order optical non-linearities in heavy-metal oxide and sulfide glasses, using the z-scan, time-resolved z-scan, and spectrally resolved tow-beam coupling techniques. The non-linear index of refraction is found to increase with heavy-metal and sulfide content, and the nuclear contribution to the non-linearity is found to be approximately constant at (15+-3)%. The largest non-resonant non-linear index of refraction occurs in 35La_2S_3 centre dot Ga_2S_3. It is 30 times larger than the non-linear index of refraction in fused silica.
机译:我们介绍了使用z扫描,时间分辨z扫描和光谱分辨拖曳束耦合技术测量重金属氧化物和硫化物玻璃中三阶光学非线性的方法。发现非线性折射率随重金属和硫化物含量的增加而增加,并且发现对非线性的核贡献大致恒定在(15 + -3)%。最大的非共振非线性折射率出现在35La_2S_3中心点Ga_2S_3中。它比熔融石英的非线性折射率大30倍。

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