Spoof surface plasmons resonance effect and tunable electric response of improved metamaterial in the terahertz regime

Wang Yue†^a),^b), Zhang Li-Ying^b), Mei Jin-Shuo^a), Zhang Wen-Chao^a), Tong Yi-Jing^c)

(a) Transmission spectra as a function of frequency for the ELC sample, E is parallel to the split gap (dark solid line) and perpendicular to the split gap (red dashed line). (b) The distributions of electric field and surface current for f ₀, f _∥, and f _p resonances, respectively.