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Simple finite field method for calculation of static and dynamic vibrational hyperpolarizabilities: Curvature contributions

机译:静态和动态振动超极化率的简单有限域方法:曲率贡献

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In the static field limit, the vibrational hyperpolarizability consists of two contributions due to: (1) the shift in the equilibrium geometry (known as nuclear relaxation), and (2) the change in the shape of the potential energy surface (known as curvature). Simple finite field methods have previously been developed for evaluating these static field contributions and also for determining the effect of nuclear relaxation on dynamic vibrational hyperpolarizabilities in the infinite frequency approximation. In this paper the finite field approach is extended to include, within the infinite frequency approximation, the effect of curvature on the major dynamic nonlinear optical processes. (C) 1998 American Institute of Physics. [References: 40]
机译:在静态磁场极限中,振动的超极化率由两个因素组成:(1)平衡几何的变化(称为核弛豫),以及(2)势能面形状的变化(称为曲率) )。以前已经开发出了简单的有限域方法,用于评估这些静态磁场的贡献,并用于确定核弛豫对无限频率近似中动态振动超极化率的影响。本文将有限域方法扩展到在无限频率近似内包括曲率对主要动态非线性光学过程的影响。 (C)1998美国物理研究所。 [参考:40]

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