Switchable Trifunctional THz Absorber

Graphene-VO₂ Broadband Tunable

Dynamically switched among low-, mid-, and high-frequency broadband modes by tuning graphene Fermi energy and VO₂ conductivity.

Hu, Dan · Shang, Hongwei · Li, Yaqin · Feng, Mingchun · Yang, Gui · Zhu, Qiaofen · Rongping, Jiang

Micro and Nanostructures 2025

Specifications

when VO insulating

{'zh': '200', 'en': '200'} S/m

Dual-broadband absorption

{'zh': '1×10⁴', 'en': '2.02'} THz

Single-broadband absorption

{'zh': '2×10⁵', 'en': '4.56'} THz

Advantages

Angle-insensitive absorption