Abstract
In this study, we have designed an electrically tunable multi-band terahertz (THz) metamaterial filter based on graphene and multiple-square-loop structures. The structure contains multiple metal square loops, and these loops with different sizes correspond to different THz frequencies, achieving our expected efficacy of a multiband wave filter. Furthermore, by sweeping external voltages, we could change graphene’s Fermi levels, and thus the high-sensitivity THz filter’s capability from single-band to multi-band filtering can be modulated. We expect that this study of a hybrid THz wave filter would be promising for the development of selecting channels in THz and 6 G communications.
Original language | English |
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Pages (from-to) | 469-478 |
Number of pages | 10 |
Journal | Optics Express |
Volume | 31 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2023 Jan 2 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics