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physics.optics2026
Robust Fano-like Antiresonances in Large-Area Au-coated Ag-Nanoisland Ensembles
Valeria Nocerino, Francesca Di Carlo, Bruno Miranda +3
We report robust Fano-like spectral profiles in substrate-supported Au-coated Ag nanoislands fabricated by solid-state dewetting followed by Au overgrowth. Combining electrostatic…
physics.optics2026
Bode-Fano Limits to Broadband Absorption by Small Particles
Emanuele Corsaro, Andrea Alù, Carlo Forestiere
Nanostructures can be designed to absorb light efficiently at resonance despite their subwavelength footprint, but causality and passivity fundamentally limit the bandwidth over wh…