The effects of an axial static magnetic field on surface and bulk plasmons of a cylindrical electric-gyrotropic (or $\varepsilon$-anisotropic) wire are investigated. Solving a modified Laplace’s equation in conjunction with the appropriate boundary conditions, the dispersion relations, power flows, energy densities, and group velocities are obtained for both types of modes, and some numerical solutions are presented. The effects of external magnetic field on plasmonic properties of the system are analyzed and show significant influence on the behavior of the modes.

中文翻译：

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圆柱电回旋线中的表面和体等离子体激元

轴向静磁场上的圆柱形电gyrotropic的表面和本体等离子体的影响（或$ \ varepsilon $ -anisotropic）线进行了研究。结合适当的边界条件求解修正的拉普拉斯方程，获得了两种模式的色散关系，功率流，能量密度和群速度，并给出了一些数值解。分析了外部磁场对系统等离子特性的影响，并显示出对模式行为的重大影响。