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

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

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- Terahertz graphene-based tunable capacitance metamaterials with ultra-high amplitude modulation depth
- Light: Science & Applications Vol. 14, Issue 11, Pages: 3343-3344(2025)
- 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
  CLC：
- Published Online：02 October 2025，
  
  Published：30 November 2025
- Accepted：
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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：

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.

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Keywords

references

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