Lateral Displacements of an Electromagnetic Beam Transmitted and Reflected from a Gyrotropic Slab
It is known that for a gyrotropic medium in the Voigt configuration, waves can be decoupled into TE and TM modes. A detailed study on the lateral displacements of an electromagnetic beam reflected and transmitted from a gyrotropic slab in Voigt configuration is presented, for both TM and TE waves. Using the stationary phase approach, analytic expressions for lateral displacements of the reflected and transmitted waves from a symmetric gyrotropic slab are obtained, and we also give examples for both cases. It is found that the lateral displacements for TM and TE waves have different characteristics. Only the TM mode is affected by the gyrotropy. Due to the external magnetic field, the lateral displacement of a TM wave transmitted from a gyrotropic slab is not the same as the reflected one, even when the configuration is symmetric and the media are lossless. We also discuss the phenomena when the incident angle is near the Brewster angle.
Hui Huang Yu Fan Bae-Ian Wu Jin Au Kong
School of Electrical Engineering,Beijing Jiaotong University,Beijing 100044,China;Research Laborator School of Electrical Engineering,Beijing Jiaotong University,Beijing 100044,China Research Laboratory of Electronics,Massachusetts Institute of Technology Cambridge,MA 02139,USA
国际会议
Progress in Electromagnetics Research Symposium 2009(2009年电磁学研究新进展学术研讨会)(PIERS 2009)
北京
英文
226-234
2009-03-23（万方平台首次上网日期，不代表论文的发表时间）