个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职:光电工程与仪器科学学院院长、党委副书记
其他任职:辽宁省先进光电子技术重点实验室副主任,大连市新型功能材料与光电子器件重点实验室主任,中国超材料学会理事,中国机械工程学会极端制造分委员会委员,国际先进材料学会会士,Microsystems&Nanoengineering、chemosensors等期刊副编辑
性别:男
毕业院校:布里斯托尔大学
学位:博士
所在单位:光电工程与仪器科学学院
学科:光学工程. 电磁场与微波技术. 光学. 测试计量技术及仪器. 精密仪器及机械
办公地点:研教楼706
联系方式:0411-84706156
电子邮箱:caotun1806@dlut.edu.cn
Topological insulator metamaterials with tunable negative refractive index in the optical region
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论文类型:会议论文
发表时间:2014-06-18
收录刊物:EI、CPCI-S、Scopus
页面范围:1255-1258
摘要:A blue-shift tunable metamaterial(MM) exhibiting a double-negative refractive index based on topological insulator (Bismuth Selenide, Bi2Se3) has been demonstrated in the near-infrared(NIR) spectral region. The potential of Bi2Se3 as a dielectric interlayer of the multilayer MM is explored. The optical response of elliptical nanohole arrays penetrating through Au/Bi2Se3/Au films is numerically investigated using the finite difference time domain (FDTD) method. The blue-shift tuning range of the MM is as high as 370nm (from 2140nm to 1770nm) after switching the Bi2Se3 between its trigonal and orthorhombic states.