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Symmetry studies in the nonlinear optical properties of molecular systems

机译:分子系统非线性光学性质的对称性研究

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Symmetries of the nonlinear optical properties (rotation, reflection, inversion) of a two-level molecular system coupled to the thermal reservoir and interacting with classical electromagnetic fields, are studied. The thermal reservoir induces a time-dependent shift of the two-level resonance frequency. A perturbative methodology based in cumulant expansions to obtain the nonlinear macroscopic polarization, is employed. These symmetry properties show the dependence of the measured of the nonlinear optical properties with the variations in the frequencies of the incident fields.
机译:研究了与储热层耦合并与经典电磁场相互作用的两级分子系统的非线性光学性质(旋转,反射,倒置)的对称性。储热器引起两级共振频率的时间依赖性位移。采用了基于累积量展开的扰动方法来获得非线性宏观极化。这些对称特性表明非线性光学特性的测量值随入射场频率的变化而变化。

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