晶格常数对左手材料的能量透射率及负折射率的影响

计算物理 ›› 2014, Vol. 31 ›› Issue (1): 85-90.

晶格常数对左手材料的能量透射率及负折射率的影响

钟敏^1,2, 叶永红¹

1. 物理科学与技术学院, 南京师范大学, 江苏南京 210023;
2. 贺州学院, 贺州广西 542899

收稿日期:2013-04-08 修回日期:2013-09-01 出版日期:2014-01-25 发布日期:2014-01-25
通讯作者: 叶永红,E-mail:yeyonghong@njnu.edu.cn
作者简介:钟敏(1982-),男,硕士,研究生,讲师,从事左手材料及超材料研究
基金资助:
国家自然科学基金(60778041);江苏省2013年普通高校研究生科研创新计划项目(CXLX13_39);桂教科研[2011]14号(201106LX649);贺州学院项目(2012ZRKY04)资助

Influence of Lattice Constant on Transmission,Negative Refractive Index and FOM of Left-Handed Materials

ZHONG Min^1,2, YE Yonghong¹

1. Nanjing normal University, Nanjing, Jiangsa 210023, China;
2. Hezhou University, Hezhou, Guangxi 542899, China

Received:2013-04-08 Revised:2013-09-01 Online:2014-01-25 Published:2014-01-25

摘要/Abstract

摘要： 研究晶格常数对左手材料的能量透射率、负折射率以及品质因素(FOM)的影响.结果表明,随着晶格常数的减小,左手材料的低阶透射峰出现异常增大,其物理机制为阻抗匹配;左手材料的负折射的中心频率随着晶格常数的减小而蓝移,与理论结果基本一致;晶格常数对左手材料的FOM有重要的影响,当晶格常数减小到一定值时,可以实现完美阻抗匹配,从而得到较高的FOM.

关键词: 左手材料, 能量透射率, 负折射, 晶格常数

Abstract: Influence of lattice constant on transmission,negative refractive index (NRI) and FOM of left-handed materials was studied.It shows that lower-order transmission peak of left-handed materials increases unusually with lattice constant decreased,due to impedance matching.And center frequency of NRI of left-handed materials is blue-shifted with decreased lattice constant,which is consistent with theoretical results.As lattice constant decreased to a certain value,perfect impedance matching is achieved which leads to higher FOM.

Key words: left-handed materials, transmission, negative refractive index, lattice constant

中图分类号:

钟敏, 叶永红. 晶格常数对左手材料的能量透射率及负折射率的影响[J]. 计算物理, 2014, 31(1): 85-90.

ZHONG Min, YE Yonghong. Influence of Lattice Constant on Transmission,Negative Refractive Index and FOM of Left-Handed Materials[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2014, 31(1): 85-90.