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Indexed by:会议论文

Date of Publication:2014-06-18

Included Journals:EI、CPCI-S、Scopus

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.