曹暾

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

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Tunable metamaterials using a topological insulator at near-infrared regime

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论文类型:期刊论文

发表时间:2013-11-14

发表刊物:RSC ADVANCES

收录刊物:SCIE、EI、Scopus

卷号:3

期号:42

页面范围:19474-19480

ISSN号:2046-2069

摘要:We present an effective method for actively controlling the intrinsic resonances of optical metamaterials in the near-infrared (NIR) spectral region using topological insulator (bismuth selenide, Bi2Se3) materials. The potential of Bi2Se3 as a dielectric interlayer of multilayer metamaterials (MMs) is explored. The optical response of elliptical nanohole arrays penetrating through metal/TI/metal (Au/Bi2Se3/Au) films is numerically investigated using the Finite Difference Time Domain (FDTD) method in the NIR region. The influence of increasing the immersion time of Bi2Se3 in a AgNO3 solution on the effective optical parameters of the structure is analyzed. This result suggests that a continuous wavelength shift of a structure's effective optical parameters can be obtained by modifying the immersion time.