Ultra-narrow dual-band perfect absorber based on double-slotted silicon nanodisk arrays

C Yang, M Luo, X Ju, J Hu - Journal of Physics D: Applied …, 2024 - iopscience.iop.org
Due to its unique advantage of optical properties, nanophotonic metamaterials have gained
extensive applications in perfect absorbers. However, achieving both dual-band and ultra …

[HTML][HTML] Perfect absorption of violet light enabled by rotated Mie resonators

R Xu, D Chen, J Takahara - Journal of Applied Physics, 2024 - pubs.aip.org
The absorption of a free-standing ultra-thin film supporting a single resonant mode is, in
principle, limited to 50%. Based on the degenerate critical coupling (DCC) of dipole modes …

Sensing and frequency selecting with toroidal resonance in metasurface

M Peng, T Xiang, T Lei, H Xu - Applied Physics Express, 2024 - iopscience.iop.org
A double M-shaped metasurface is proposed and produced to realize a high Q-factor
resonance at 13 GHz. The numerical and experimental results show that the high Q …