计算物理 ›› 1993, Vol. 10 ›› Issue (3): 266-272.

• 论文 • 上一篇    下一篇

一维周期耗散媒质中的电磁波模及其数值分析

李承祖   

  1. 国防科学技术大学二系, 长沙 410073
  • 收稿日期:1990-12-15 修回日期:1993-03-25 出版日期:1993-09-25 发布日期:1993-09-25
  • 基金资助:
    国家自然科学基金

ELECTROMAGNETIC WAVE MODE IN ONE DIMENSION PERIODIC LOSSY MEDIA AND ITS NUMERICAL ANALYSIS

Li Chengzu   

  1. National University of Defence Technology, Changsha 410073
  • Received:1990-12-15 Revised:1993-03-25 Online:1993-09-25 Published:1993-09-25

摘要: 文中推导了一维周期耗散媒质中电磁波模式特征值方程,证明其解分类为一系列的"导带"和"禁带";用实数Re(Kz2)代替复特征值Kz标识模式,可清晰地显示出带结构,便于模式的分类和比较。文中用数值方法给出了几组参数下横电波、横磁波模最低两个带的图示,并与周期势场中的电子能带作了对比。

关键词: 一维周期耗散媒质, 电磁波模, 特征值方程, 特征值, 带结构

Abstract: Electromagnetic wave eigenmode equation in one dimension periodic lossy medium is derived. It has been found that the solutions of the equation can be classified as a series of conduction and forbidden bands. Substituion of the real Re(K2) for complex K to symbolise modes shows the band structure clearly and facilitates classifing and comparing of the modes. The figures of the lowest two bands of TE wave and TM wave for a group of parameters are given by using numerical method. They are compared with electron energy band in periodic potential field.

Key words: one dimension periodic lossy media, electromagnetic wave mode, eigenvalue equation, eigenvalue, band structure