Electromagnetic Absorption by Metamaterial Grating System

摘要：

Total absorption of electromagnetic waves is demonstrated in a system composed of zero-order metamaterial grating and rearward metamaterial wall. The grating and the wall are separated by an air gap. Two mechanisms are shown to account for this absorption. The first one is due to the existence of standing waves in both the grooves of the grating and the air gap. These standing waves trap the electromagnetic waves and induce an oscillating surface charge density on the grating surface. The second one is due to surface plasmons at the interface between the air gap and metamaterial wall, the width of the air gap is a key parameter for the total absorption.

作者: Xiaobing Cai Gengkai Hu

作者单位: School of Science,Beijing Institute of Technology,Beijing 100081,China

会议类型: 国际会议

会议名称: Progress in Electromagnetics Research Symposium 2008(2008年电磁学研究新进展学术研讨会)(PIERS 2008)

会议地点: 杭州

会议语种:英文

页码: 1-5

在线出版日期: 2008-03-24（万方平台首次上网日期，不代表论文的发表时间）