Release Time:2019-03-11  Hits:

Indexed by: Conference Paper

Date of Publication: 2014-06-18

Included Journals: Scopus、CPCI-S、EI

Page Number: 1255-1258

Abstract: 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.