周期图案多层膜系统磁光的广义散射矩阵方法
Generalized scattering-matrix approach for magneto-optics in periodically patterned multilayer systems
摘要：
我们在这里提出了一个概括的散射矩阵方法的描述电磁波在纳米结构磁光系统的传播。我们的形式主义使我们能够描述所有的关键磁光效应在任何配置周期性图案化的多层结构。该方法还可以应用于描述包括具有任何类型的光学各向异性的材料的周期性多层系统。我们说明了最近的一个实验中，横向磁光克尔效应的测量与周期性阵列的亚波长圆孔的铁膜的分析方法。我们表明，与实验一致，在这个系统中的表面等离子体激元的激发导致横向磁光克尔效应的共振增强。
英文摘要：
We present here a generalization of the scattering-matrix approach for the description of the propagation of electromagnetic waves in nanostructured magneto-optical systems. Our formalism allows us to describe all the key magneto-optical effects in any configuration in periodically patterned multilayer structures. The method can also be applied to describe periodic multilayer systems comprising materials with any type of optical anisotropy. We illustrate the method with the analysis of a recent experiment in which the transverse magneto-optical Kerr effect was measured in a Fe film with a periodic array of subwavelength circular holes. We show, in agreement with the experiments, that the excitation of surface plasmon polaritons in this system leads to a resonant enhancement of the transverse magneto-optical Kerr effect.
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