Author

Yun-Ping Qi

3 papers indexed here

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Open access Oct 2026

State-dependent dissipation and broadband circular-polarization selectivity in a VO2–Ag terahertz chiral metasurface

Broadband and tunable discrimination between circular polarizations is important for terahertz polarization control and handedness-selective devices. A reflective chiral metasurface comprising a hybrid VO2–Ag top pattern, a TOPAS spacer, and an Au ground plane is proposed. A Python-CST workflow with derivative-free ada...

Jia-Yong Hu, Yun-Ping Qi, Jun-Feng Zhao · Physica Scripta · 0 citations

Open access Sep 2026

Phase-transition-driven electromagnetically induced transparency-like effect and slow-light propagation in terahertz VO2 metasurfaces

This work proposes and investigates a VO2-integrated terahertz metasurface exhibiting an actively tunable electromagnetically induced transparency (EIT)-like response. By incorporating a buried VO2 phase-transition layer beneath the metallic resonators, the EIT-like response is dynamically controlled through VO2-induce...

Yin-Mei Yu, A.-P. Fang, Yun-Ping Qi · Physica Scripta · 0 citations

Open access Sep 2026

High-sensitivity plasmonic sensing of Au-Ag alternating nanograting with Kretschmann configuration

We theoretically investigate an Au-Ag alternating nanograting integrated with a Kretschmann prism-coupled configuration for high-performance plasmonic refractive-index (RI) sensing. Finite-element simulations show that TM-polarized light incident from the BK7 prism side can efficiently excite surface plasmon resonance...

Xiao-Tong Wu, Xiang-Xian Wang, Yi-Zhen Chen et al. · Europhysics letters · 0 citations