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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
Blue shift tunable negative index metamaterials based on topological insulator for near-infrared spectrum
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论文类型：期刊论文
发表时间：2014-06-01
发表刊物：MATERIALS EXPRESS
收录刊物：SCIE
卷号：4
期号：3
页面范围：196-204
ISSN号：2158-5849
关键字：Metamaterials; Left-Handed Materials; Surface Plasmons; Tunable; Topological Insulator
摘要：A blue-shift tunable nnetamaterial (MM) exhibiting a double-negative refractive index based on topological insulator (Bismuth Selenide, Bi2Se3) has been demonstrated in the near-infrared (N-IR) 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 370 nm (from 2140 nm to 1770 nm) after switching the Bi2Se3 between its trigonal and orthorhombic states.