Continuous Change of Second-order Nonlinear Optical Activity in a Cyano-bridged Coordination Polymer
Continuous Change of Second-order Nonlinear Optical Activity in a Cyano-bridged Coordination Polymer
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DOI：
10.1021/jp8021216
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发表时间：
2008-08
影响因子：
3.7
通讯作者：
S. Ohkoshi;Shintaro Saito;Tomoyuki Matsuda;Tomohiro Nuida;H. Tokoro
中科院分区：
文献类型：
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作者：
S. Ohkoshi;Shintaro Saito;Tomoyuki Matsuda;Tomohiro Nuida;H. Tokoro
在这项工作中，我们通过调节一系列六氰基铁酸铷锰盐RbIxMnII[FeIII(CN)6](x+2)/3·zH2O的压电特性来连续控制二阶非线性光学活性。当x = 0.7以上时，观察到二次谐波产生（SHG），并且SH光强度（ISH）随着x的增加而逐渐增加。采用Rietveld分析和最大熵法对该系列的晶体结构进行了分析。晶体结构数据表明，Rb离子在间隙位点1（PRb1）和位点2（PRb2）中存在概率之间的差异PRb1 - PRb2随着x的增加而逐渐增大。由于 PRb1 和 PRb2 之间的差异产生 4 旋转反演，因此认为 PRb1 – PRb2 值与压电性或 SH 磁化率 (χSH) 的大小有关。通过对 χSH 张量元素的分析，观察到的 ISH 的 x 依赖性可以通过 PRb1 – PRb2 值来解释。这种二阶非线性光作用可调谐系统...
In this work, we continuously control the second-order nonlinear optical activity by tuning the piezoelectric property in a series of rubidium manganese hexacyanoferrates, RbIxMnII[FeIII(CN)6](x+2)/3·zH2O. Above x = 0.7, second harmonic generation (SHG) is observed, and the SH light intensity (ISH) gradually increases with increasing x. The crystal structures of this series are analyzed using Rietveld analysis and the maximum entropy method. The crystal structural data shows that the difference between the existing probability of the Rb ion in interstitial site-1 (PRb1) and site-2 (PRb2), PRb1 − PRb2, gradually increases with increasing x. Because the difference between PRb1 and PRb2 produces a 4 rotoinversion, the PRb1 − PRb2 value is considered to be related to the magnitude of piezoelectricity or SH susceptibility (χSH). From the analysis of the χSH tensors elements, the observed x dependence of ISH can be explained by the PRb1 − PRb2 value. Such a tunable system of second-order nonlinear optical acti...