562 citations · 1.4k across the 15 of their papers we have counts for
4 papers · 1 filter
Exploring phase sensitivity and limit of detection near the critical coupling of metasurfaces and its phase singularity
L. Berguiga, T. Girerd, X. Letartre +4
It is commonly accepted that phase singularities in refractive index sensors can provide highly sensitive detection. To address this issue, we studied the phase sensitivity and the…
A formalism for giant Goos-Hänchen shift in metasurface sensors with phase singularity
Lotfi Berguiga, Sébastien Cueff, Lydie Ferrier +4
The Goos-Hänchen (GH) shift becomes giant in resonant photonic structures, making it promising for refractive index sensors with ultimate sensitivities. We provide here a complete…
Shaping Bulk Fermi Arcs in the Momentum Space of Photonic Crystal Slabs
Luigi Frau, Simone Zanotti, Lydie Ferrier +2
Exceptional points (EPs) are special spectral degeneracies of non-Hermitian operators: at the EP, the complex eigenvalues coalesce, i.e., they become degenerate in both their real…
Tailoring Flatband Dispersion in Bilayer Moiré Photonic Crystals
Chirine Saadi, Sébastien Cueff, Lydie Ferrier +6
In this study, we experimentally investigate the photonic dispersion in one-dimensional moiré structures formed by stacking two photonic crystal slabs with slightly different perio…