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Updated: Jan 16, 2026

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
Published on: December 27, 2012
Terahertz graphene-based tunable capacitance metamaterials with ultra-high amplitude modulation depth
1State Key Laboratory of Terahertz and Millimeter Waves, Department of Electrical Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China.
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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