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首页> 外文期刊>Journal of nonlinear optical physics & materials >Enhancement of effective second-order nonlinearity in poled polymers by introducing the chromophores with low ground state dipole moment
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Enhancement of effective second-order nonlinearity in poled polymers by introducing the chromophores with low ground state dipole moment

机译：通过用低地位偶极矩引入发色团的发色团来增强抛光聚合物中的有效二阶非线性

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The strategy of introducing the chromophores with low ground state dipole moment had been discussed to overcome the effect of the electrostatic interaction between the chromophores in the poled polymer films on its nonlinearity. As a result, the effective nonlinear optical coefficient d(33) of the poled films, containing the chromophores with mu(g) in the range of 3.5-5.5 D, will enhance at least 15%, even over 30%, compared to that of 7.5 D if the first hyperpolarizabilities (beta) of chromophores are in the same magnitudes. And, under the above assumption, the same level of the d(33) could even be achieved by utilizing the chromophores with mu(g) as low as 2.2 D. [References: 21]
机译：已经讨论了引入具有低地位偶极偶像的发色团的策略以克服在其非线性中抛光聚合物膜中发色团之间的静电相互作用的效果。 结果，与3.5-5.5d的范围为3.5-5.5d，含有μ（g）的发色团的有效非线性光学系数d（33）将增强至少15％，甚至超过30％ 如果发色团的第一个超积极（Beta）具有相同的大小，则为7.5d。 并且，在上述假设下，甚至可以利用mu（g）低至2.2d的发色团来实现相同水平的d（33）。[参考文献：21]

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