4 papers
Material-Specific Mapping of Plasmonic Modal Dispersion via Discrete Momentum-Space Probes
Youssef El Badri, Hicham Mangach, Yan Pennec +4
Accurate measurement of surface plasmon polariton (SPP) dispersion remains challenging, as conventional angle-resolved techniques are limited by surface quality, diffraction artifa…
Space-Time Elastic Metamaterials for Zero-Frequency and Zero-Wavenumber Bandgaps
Brahim Lemkalli, Alaa Ali, Qingxiang Ji +5
We create wave-matter space-time metamaterials using optical trapping forces to manipulate mass-spring chains and create zero-frequency and zero-wavenumber band gaps: the bosonic n…
W-shaped Broadband Attenuation of Longitudinal Waves through Composite Elastic Metamaterial
B. Lemkalli, K. K. Dudek, M. Kadic +4
We investigate a composite elastic meta-slab with exceptional transmission properties, particularly the presence of a W-shaped bandgap. A comprehensive study, utilizing experimenta…
Robust Quasi-Bound States in the continuum: Accidental and Symmetry-Protected Variants in Dielectric Metasurfaces
Hicham Mangach, Abdelhaq Belkacem, Younes Achaoui +3
Recently, man-made dielectric materials composed of finite-sized dielectric constituents have emerged as a promising platform for quasi-bound states in the continuum (QBICs). These…