Refractive index sensor based on bound states in the continuum in silicon-based metasurface

J Zhao, X Fan, W Fang, W Xiao, F Sun, C Bai… - Infrared Physics & …, 2024 - Elsevier
This article theoretically and experimentally investigates a silicon-based metasurface
composed of a silicon cuboid with two sector nanopores. The simulation results demonstrate …

[HTML][HTML] Multimodal ultra-high Q-factor C2 asymmetric all-dielectric metasurface induced by quasi-BIC states

Y Zhang, H Niu, J Wei, Y Zhu, Y Li, X Fan, W Fang, H Li… - Physics Letters A, 2024 - Elsevier
A high Q-factor resonant cavity indicates minimal energy loss at the resonance frequency. In
this paper, we propose a four-leaf clover sensor with air pillars based on the all-dielectric …

Multiple fano resonances based on all-dielectric metastructure for refractive index sensing

H Guo, W Fang, J Pang, T Wang, X Fan… - Infrared Physics & …, 2024 - Elsevier
We investigate an optical refractive index sensor based on an all-dielectric metastructure in
the near-infrared regime for achieving high sensitivity and high quality factor (Q-factor). By …

High Q-factor Fano resonances in a double D-type metasurface based on toroidal dipole bound states in the continuum

H Guo, W Fang, T Wang, X Fan, J Pang, Q Chen, X Wei… - Journal of Optics, 2024 - Springer
In this paper, a double D-type all-dielectric metasurface is proposed to achieve high Q-factor
Fano resonances. This metasurface utilizes bound states in the continuum (BIC) and serves …