Terahertz graphene-based tunable capacitance metamaterials with ultra-high amplitude modulation depth

Zi-Jun Guo; Geng-Bo Wu

doi:10.1038/s41377-025-02037-z

Your Location：

Home >

Browse articles >

Terahertz graphene-based tunable capacitance metamaterials with ultra-high amplitude modulation depth

News & Views

- Terahertz graphene-based tunable capacitance metamaterials with ultra-high amplitude modulation depth
- Terahertz graphene-based tunable capacitance metamaterials with ultra-high amplitude modulation depth
- Light: Science & Applications 2025年14卷第11期页码：3343-3344
- Affiliations：
  
  State Key Laboratory of Terahertz and Millimeter Waves, Department of Electrical Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
- Author bio：
  
  Geng-Bo Wu (bogwu2@cityu.edu.hk)
- Funds：
- DOI：10.1038/s41377-025-02037-z
  中图分类号：
- 网络出版：2025-10-02，
  
  纸质出版：2025-11-30
- Accepted：
Scan QR Code
Zi-Jun Guo, Geng-Bo Wu. Terahertz graphene-based tunable capacitance metamaterials with ultra-high amplitude modulation depth[J]. Light: Science & Applications, 2025,14(11):3343-3344.

Guo, Z-J. & Wu, G-B. Terahertz graphene-based tunable capacitance metamaterials with ultra-high amplitude modulation depth. Light: Science & Applications, 14, 3343-3344 (2025).
Zi-Jun Guo, Geng-Bo Wu. Terahertz graphene-based tunable capacitance metamaterials with ultra-high amplitude modulation depth[J]. Light: Science & Applications, 2025,14(11):3343-3344. DOI： 10.1038/s41377-025-02037-z.

Guo, Z-J. & Wu, G-B. Terahertz graphene-based tunable capacitance metamaterials with ultra-high amplitude modulation depth. Light: Science & Applications, 14, 3343-3344 (2025). DOI： 10.1038/s41377-025-02037-z.

摘要

Abstract

By combining substrate-side

phase-cancelling reflection with monolayer graphene reconfigured as nanoscale tunable lateral capacitors within metasurface unit cells

terahertz amplitude modulation exceeding 40 dB at around 2 THz with 30 MHz reconfiguration speed is demonstrated under solid-state

room-temperature conditions. The design provides a scalable and practical platform for high-speed

large-dynamic-range terahertz communications

real-time imaging

and programmable photonic circuits.

关键词

Keywords

references

Degl’Innocenti, R., Lin, H. & Navarro-Cía, M. Recent progress in terahertz metamaterial modulators. Nanophotonics 11 , 1485–1514 (2022)..

Han, Z. L. et al. MEMS reconfigurable metamaterial for terahertz switchable filter and modulator. Opt. Express 22 , 21326–21339 (2014)..

Chen, B. W. et al. Electrically addressable integrated intelligent terahertz metasurface. Sci. Adv . 8 , eadd1296 (2022)..

Shen, Z. X. et al. Liquid crystal enabled dynamic cloaking of terahertz Fano resonators. Appl. Phys. Lett . 114 , 041106 (2019)..

Wu, Y. et al. Graphene terahertz modulators by ionic liquid gating. Adv. Mater . 27 , 1874–1879 (2015)..

Zhang, Y. X. et al. Large phase modulation of THz wave via an enhanced resonant active HEMT metasurface. Nanophotonics 8 , 153–170 (2018)..

Xia, R. Q. et al. Achieving 100% amplitude modulation depth in the terahertz range with graphene-based tuneable capacitance metamaterials. Light Sci. Appl . 14 , 256 (2025)..

Degl’Innocenti, R. et al. Low-bias terahertz amplitude modulator based on split-ring resonators and graphene. ACS Nano 8 , 2548–2554 (2014)..

Novoselov, K. S. et al. Two-dimensional gas of massless Dirac fermions in graphene. Nature 438 , 197–200 (2005)..

Di Gaspare, A. et al. Tunable, grating-gated, graphene-on-polyimide terahertz modulators. Adv. Funct. Mater . 31 , 2008039 (2021)..

Chen, Z. F. et al. Graphene controlled Brewster angle device for ultra broadband terahertz modulation. Nat. Commun . 9 , 4909 (2018)..

Miao, Z. Q. et al. Widely tunable terahertz phase modulation with gate-controlled graphene metasurfaces. Phys. Rev. X 5 , 041027 (2015)..

浏览量

Downloads

CSCD

文章被引用时，请邮件提醒。

Submit

工具集

关联资源

暂无数据