Ultra-Broadband Metasurface Absorber Enabled by a Central-Bar-Coupled Split-Disk Dimer
Carlotta Panciera, Giuseppe Brunetti, Caterina Ciminelli, Muhammad A. Butt · 2026
Read Ultra-Broadband Metasurface Absorber Enabled by a Central-Bar-Coupled Split-Disk Dimer by Carlotta Panciera, Giuseppe Brunetti, Caterina Ciminelli, Muhammad A. Butt (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13511334.txt.
Description
Carlotta Panciera and co-authors design a light-absorbing surface that doubles as a sharp chemical sensor, in work from 2026. The surface pairs silicon nitride shapes with a gold layer in a split-disk pattern. Tight light trapping yields very narrow response dips in the near infrared.
Simulations covered light from 1,000 to 1,400 nanometers in wavelength. The best dips were under one nanometer wide, with quality scores above two thousand. Shifting the liquid above the surface moved the dips strongly, showing high sensing power. Tilted light split some dips and spawned new sharp branches. Polarization changed the pattern as well. The design targets lab sensors that read tiny fluid changes.
Catalog record
| CREATOR | Carlotta Panciera, Giuseppe Brunetti, Caterina Ciminelli, Muhammad A. Butt |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 54 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |