Honda Yoshihiro, Igarashi Eri, Shoji Yuya, Amemiya Tomohiro
Opt Express. 2023 Sep 25;31(20):32017-32043. doi: 10.1364/OE.496200.
Optical waveguide theory is essential to the development of various optical devices. Although there are reports on the theory of optical waveguides with magneto-optical (MO) and magnetoelectric (ME) effects, a comprehensive theoretical analysis of waveguides considering these two effects has not yet been published. In this study, the conventional waveguide theory is extended by considering constitutive relations that account for both MO and ME effects. Using the extended waveguide theory, the propagation properties are also analyzed in a medium where metamaterials and magnetic materials are arranged such that MO and ME effects can be controlled independently. It has been confirmed that the interaction between MO and ME effects occurs depending on the arrangement of certain metamaterials and the direction of magnetization. This suggests a nonreciprocal polarization control that rotates the polarization in only one direction when propagating in plane wave propagation and enhances the nonreciprocal nature of the propagating waves in waveguide propagation.
光波导理论对于各种光学器件的发展至关重要。尽管已有关于具有磁光（MO）和磁电（ME）效应的光波导理论的报道，但尚未发表对同时考虑这两种效应的光波导进行的全面理论分析。在本研究中，通过考虑同时包含MO和ME效应的本构关系，对传统波导理论进行了扩展。利用扩展后的波导理论，还对超材料和磁性材料按能独立控制MO和ME效应的方式排列的介质中的传播特性进行了分析。已经证实，MO和ME效应之间的相互作用取决于某些超材料的排列和磁化方向。这表明存在一种非互易偏振控制，即在平面波传播中传播时仅在一个方向上旋转偏振，并增强了波导传播中传播波的非互易特性。
