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首页> 外文期刊>Solid State Communications >Third-order optical nonlinearity of (Ba0.7Sr0.3)TiO3 ferroelectric thin films fabricated by soft solution processing
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Third-order optical nonlinearity of (Ba0.7Sr0.3)TiO3 ferroelectric thin films fabricated by soft solution processing

机译：软溶液法制备（Ba0.7Sr0.3）TiO3铁电薄膜的三阶光学非线性

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摘要

(Ba0.7Sr0.3)TiO3 (BST) ferroelectric thin films with perovskite crystal structure were fabricated by soft solution processing on a quartz substrate. The third-order nonlinear optical proper-ties were investigated by using Z-scan technique. Positive nonlinear refractive index and nonlinear absorption coefficient were determined to be 4 X 10(-7) esu and 1.2X 10(-6) m/w, respectively. The real part and imaginary part of third-order optical nonlinear susceptibility were calculated and the values were 6.43 X 10(-8) and 5.14 X 10(-8) esu, respectively. All of these results show ferroelectric BST thin film is promising for applications in nonlinear optical devices. (c) 2005 Elsevier Ltd. All rights reserved.
机译：钙钛矿晶体结构的（Ba0.7Sr0.3）TiO3（BST）铁电薄膜是通过在石英衬底上进行软溶处理而制成的。采用Z扫描技术研究了三阶非线性光学性质。正非线性折射率和非线性吸收系数分别确定为4 X 10（-7）esu和1.2X 10（-6）m / w。计算了三阶光学非线性磁化率的实部和虚部，其值分别为6.43 X 10（-8）和5.14 X 10（-8）esu。所有这些结果表明，铁电BST薄膜有望用于非线性光学器件。 （c）2005 Elsevier Ltd.保留所有权利。

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