Second-order nonlinear optical effects in stacked assemblies of ultrathin polymer films with amphiphilic ruthenium complex
Second-order nonlinear optical effects in stacked assemblies of ultrathin polymer films with amphiphilic ruthenium complex
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两亲性钌配合物超薄膜聚合物堆叠组件中的二阶非线性光学效应
DOI：
10.1021/j100065a006
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发表时间：
1994
期刊：
影响因子：
--
通讯作者：
T. Matsuo
中科院分区：
文献类型：
--
作者：
S. Yamada;M. Kawazu;T. Matsuo
通过在空气-水界面引入两亲性的Ru络合物，制备了具有不对称表面性质的聚氯乙烯超薄薄膜。构建了薄膜的堆叠组件，以检查特定条件下的二阶非线性光学效应：(1)堆叠薄膜的数量，(2)不对称表面的取向，以及(3)堆叠薄膜之间是否存在间隙。当具有相同表面取向的薄膜被间隙隔开时，二次谐波光(SHL)强度随堆积薄膜的数量呈二次曲线增加。在没有间隙的情况下，SHL强度随着薄膜数量的增加而增加的幅度较小。对叠层膜的每一组分的非线性光学性质提出了明显的修改意见
Ultrathin poly(vinyl chloride) films with asymmetric surface properties were prepared by incorporating an amphiphilic ruthenium complex at the air-water interface. Stacked assemblies of the films were constructed to examine second-order nonlinear optical effects under specified conditions: (1) number of stacked films, (2) orientation of the asymmetric surface, and (3) presence (or absence) of gaps between the stacked films. The second harmonic light (SHL) intensity quadratically increased with the number of stacked films, when the films with the same surface orientation were separated by gaps. In the absence of gaps, the SHL intensity increased less sharply with the number of films. Appreciable modification of nonlinear optical properties was suggested on each component of the laminated films