用惠更斯作图法研究左手材料的负折射现象  

The Study on the Phenomenon of Negative Refraction of the Left-handed Materials Using the Huygens Mapping Method

作　　者：王凯龙[1] 马文强[1] 郝刚领[1] 王伟国[1] 

机构地区：[1]延安大学物理与电子信息学院,延安716000

出　　处：《科学技术与工程》2011年第4期693-697,共5页Science Technology and Engineering

基　　金：陕西省科技厅项目(SJ08-ZJ05)资助

摘　　要：针对理解电磁波在左手材料中的传播特性,在详细分析了该介质中电磁波波矢量k的方向、大小和坡印廷矢量s之间关系的基础之上,根据电磁场理论探讨了电磁波在右手、左手材料分界面上的反射和折射(各介质都是各向同性的)现象。并运用惠更斯作图法解释了电磁波由右手材料穿越左手材料时的负折射现象。指出发生负折射现象的根本原因是由于电磁波在左手材料中传播时其波矢量与坡印廷矢量的方向相反。For the understanding of electromagnetic wave propagation in left-handed materials,the electromagnetic wave vector k dielectric is analyzed in the direction,size,and Poynting vector basis of the relationship between s,according to electromagnetic field theory electromagnetic wave at the right hand left-handed materials on the interface of the reflection and refraction（the media are isotropic）.Using Huygens mapping method is explained the phenomenon of negative refraction when electromagnetic waves through the left-handed materials.Point out that the root cause of the negative refraction phenomenon is due to electromagnetic wave propagation in left-handed materials,when the wave vector and Poynting vector in the opposite direction.

关 键 词：左手材料 波矢量 坡印廷矢量 惠更斯作图法 负折射 

分 类 号：O439[机械工程—光学工程]