摘要
负折射率材料由于其独特的性质引起了人们极大的兴趣。介绍了负折射产生的原理及其奇特性质,着重阐述了实现负折射材料的3种主要方法:双负介质实现负折射、左手介质实现负折射和光子晶体实现负折射。分析了各种方法在实现光频段低损耗负折射材料中的可行性及纳米技术发挥的重大作用。
People pay much interest to the negative index materials due to the special characteristics, in tins paper, the principle and unique characteristics of negative refraction are introdued. The three ways to realize negative refraction that are from double negative medium to negative refraction, from left-handed medium to negative refraction, and from photonic crystals to negative refraction are expeounded deeply. The practicability of achieving negative refraction of low losses at the optical frequecy bands and the large importance of nanotechnology are analyzed.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2007年第12期6-11,共6页
Materials Reports
基金
国家科技部973计划项目(2004CB719805)
国家科技部国际科技合作重点项目(2006DFA52910)
浙江省科技厅项目(2006R10038)
教育部留学回国人员科研基金
关键词
负折射
左手介质
光子晶体
光频段
纳米技术
negative refraction, left-handed medium, photonic crystal, optical frequency hands, nanotechnology
