Electrically tunable graphene-based multi-band terahertz metamaterial filters

Pei Jung Wu, Wei Cheng Tsai, Chan Shan Yang*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

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 languageEnglish
Pages (from-to)469-478
Number of pages10
JournalOptics Express
Volume31
Issue number1
DOIs
Publication statusPublished - 2023 Jan 2

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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