Tunable Ultra-Wideband VO2–Graphene Hybrid Metasurface Terahertz Absorption Devices Based on Dual Regulation
University of Electronic Science and Technology of China · Suizhou Central Hospital · +5 more institutions
Abstract
In this study, a dynamically tunable terahertz device based on a VO2–graphene hybrid metasurface is proposed, which realizes the dual functions of ultra-wideband absorption and efficient transmission through VO2 phase transformation. At 345 K (metallic state), the device attains an absorption efficiency exceeding 90% (average 97.06%) in the range of 2.25–6.07 THz (bandwidth 3.82 THz), showing excellent absorption performance. At 318 K (insulated state), the device achieves 67.66–69.51% transmittance in the 0.1–2.14 THz and 7.51–10 THz bands while maintaining a broadband absorption of 3.6–5.08 THz (an average of 81.99%). Compared with traditional devices, the design breaks through the performance limitations by…
Citation impact
- FWCI
- 15.75
- Percentile
- 100%
- References
- 77
Authors
7- KCKele Chen
University of Electronic Science and Technology of China, Suizhou Central Hospital
- ZWZhengning WangCorresponding
University of Electronic Science and Technology of China
- MGMeizhang Guan
Suizhou Central Hospital
- SCShubo Cheng
Yangtze University
- HMHongyu Ma
Southwest University of Science and Technology, Joint Laboratory for Extreme Conditions Matter Properties
Topics & keywords
- Terahertz radiation
- Absorption (acoustics)
- Graphene
- Transmittance
- Fabrication
- Broadband