金属与回旋磁介质界面处电磁表面态的解析解

IF 1.8 4区 物理与天体物理 Q3 OPTICS Journal of The Optical Society of America B-optical Physics Pub Date : 2023-10-10 DOI:10.1364/josab.499881
Yi-Dong Zheng, Jianfeng Chen, Zitao Ji, hao Lin, Zhiyuan Li
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引用次数: 0

摘要

在考虑三个正交磁化方向的情况下,系统地研究了半无限金属与旋磁介质界面处的表面态。通过求解由麦克斯韦方程组和所有四个边界条件导出的全矢量偏振完全倏逝波方程,我们得到了表面态的严格解析解。求解了三种构型下的色散方程和场方程。同时,解还揭示了表面等离子激元(SPPs)在回旋磁效应下的有趣特性。在极性结构(磁化强度垂直于界面)中,陀螺磁效应独特地导致SPP中类似烛光的场模式。在横向结构(磁化强度平行于界面并垂直于传播)中,发现了单向磁性表面状态。在纵向结构(磁化与传播平行)中,SPP也表现出类似烛光的场模式,但表现出与极性结构不同的极化。我们的研究结果揭示了SPPs在旋转磁效应下的特殊行为,并将加深对界面磁光效应的理解。
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Analytical solutions for electromagnetic surface states at the interface between metal and gyromagnetic media
We systematically study the surface states at the interface between semi-infinite metal and gyromagnetic media, considering three orthogonal magnetization directions. By solving a full vectorial polarization-complete evanescent wave equation derived from Maxwell’s equations and all four boundary conditions, we obtain rigorous analytical solutions for the surface states. All analytical dispersion equations and field equations under the three configurations are solved. Simultaneously, the solutions also reveal the intriguing features of surface plasmon polaritons (SPPs) under the gyromagnetic effect. In the polar configuration (where the magnetization is perpendicular to the interface), the gyromagnetic effect uniquely results in candlelight-like field patterns in SPP. In the transversal configuration (where the magnetization is parallel to the interface and perpendicular to propagation), the unidirectional magnetic surface state is found. In the longitudinal configuration (where the magnetization is parallel to propagation), the SPP also exhibits candlelight-like field patterns but manifests a different polarization from the polar configuration. Our results reveal peculiar behaviors of SPPs under the gyromagnetic effect and would deepen the understanding of the magneto-optical effect on interfaces.
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来源期刊
CiteScore
4.00
自引率
5.30%
发文量
374
审稿时长
2.1 months
期刊介绍: The Journal of the Optical Society of America B (JOSA B) is a general optics research journal that complements JOSA A. It emphasizes scientific research on the fundamentals of the interaction of light with matter such as quantum optics, nonlinear optics, and laser physics. Topics include: Advanced Instrumentation and Measurements Fiber Optics and Fiber Lasers Lasers and Other Light Sources from THz to XUV Light-Induced Phenomena Nonlinear and High Field Optics Optical Materials Optics Modes and Structured Light Optomechanics Metamaterials Nanomaterials Photonics and Semiconductor Optics Physical Optics Plasmonics Quantum Optics and Entanglement Quantum Key Distribution Spectroscopy and Atomic or Molecular Optics Superresolution and Advanced Imaging Surface Optics Ultrafast Optical Phenomena Wave Guiding and Optical Confinement JOSA B considers original research articles, feature issue contributions, invited reviews and tutorials, and comments on published articles.
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