Multi-functional vanadium dioxide integrated metamaterial for terahertz wave manipulation

We proposed a vanadium dioxide (VO 2 )-integrated multi-functional metamaterial structure that consists of three metallic grating layers and two VO 2 films separated by SiO 2 dielectric spacers. The proposed structure can be flexibly switched among three states by adjusting temperature, incident dir...

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Bibliographic Details
Published inChinese physics B Vol. 29; no. 9; p. 94205
Main Authors Zhao, Jian-Xing, Song, Jian-Lin, Zhou, Yao, Zhao, Rui-Long, Liu, Yi-Chao, Zhou, Jian-Hong
Format Journal Article
LanguageEnglish
Published 01.09.2020
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Summary:We proposed a vanadium dioxide (VO 2 )-integrated multi-functional metamaterial structure that consists of three metallic grating layers and two VO 2 films separated by SiO 2 dielectric spacers. The proposed structure can be flexibly switched among three states by adjusting temperature, incident direction, and polarization. In state 1, the incident wave is strongly transmitted and perfectly converted to its orthogonal polarization state. In state 2, the incident wave is perfectly absorbed. In state 3, incident wave is totally reflected back. The working frequency of the multi-functional metamaterial can be arbitrarily tuned within a broad pass band. We believe that our findings are beneficial in designing temperature-controlled metadevices.
ISSN:1674-1056
DOI:10.1088/1674-1056/abab6f