Yi-Dong Zheng, Jianfeng Chen, Zitao Ji, hao Lin, Zhiyuan Li
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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.
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.