| 左手材料的奇异特性 |
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| 引用本文： | 田秀劳.左手材料的奇异特性[J].西安邮电学院学报,2006,11(3):131-136. |
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| 作者姓名： | 田秀劳 |
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| 作者单位： | 西安邮电学院,应用数理系,陕西,西安,710061 |
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| 摘 要： | 左手材料是指一种介电常数ε和磁导率μ同时为负值的材料。近几年在实验上取得了突破性的进展,尤其是在2003年,被美国的科学杂志评为当年十大科技进展之一。本文介绍了左手材料的概念、原理和它具有的负群速度、负折射率、理想成像、逆Doppler频移、反常Cerenkov辐射等种种奇异的物理性质。并回顾了这一领域近年来的发展状况。
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| 关 键 词： | 左手材料 负群速度 负折射率 开口金属谐振环 光子晶体 |
| 文章编号： | 1007-3264（2006）03-0000-00 |
| 收稿时间： | 2005-11-12 |
| 修稿时间： | 2005年11月12 |
Strange properties of left-handed materials |
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| TIAN Xiu-lao.Strange properties of left-handed materials[J].Journal of Xi'an Institute of Posts and Telecommunications,2006,11(3):131-136. |
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| Authors: | TIAN Xiu-lao |
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| Abstract: | Left-handed materials,of which the dielectric constant ε and the magnetic permeability μ are simultaneously negative.Key experimental advances have been obtained recently and winning a place among the 10 breakthroughs by Science in 2003.Left-handed materials have many strange properties,such as negative refractive index,negative group velocity,perfect imaging,inverse Doppler effect and abnormal Cerenkov radiation.This paper introduces the concept and basic principles of left-handed materials and reviews the developments in recent years. |
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| Keywords: | left - handed materials negative group velocity negative index of refraction split - ring resonator photonic crystal |
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