Fano Resonance-Associated Plasmonic Circular Dichroism in a Multiple-Dipole Interaction Born–Kuhn Model
Wanlu Bian, Guodong Zhu, Fengcai Ma, Tongtong Zhu, Yurui Fang, Flavio Esposito · 2024
Read Fano Resonance-Associated Plasmonic Circular Dichroism in a Multiple-Dipole Interaction Born–Kuhn Model by Wanlu Bian, Guodong Zhu, Fengcai Ma, Tongtong Zhu, Yurui Fang, Flavio Esposito (2024) 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-11644035.txt.
Description
Wanlu Bian and co-authors model how coupled light modes in tiny metal disks create strong chiral signals, in a 2024 paper. Such signals matter for sensors because they react sharply to the medium around the structure. The design pairs two elliptical disks in a stacked, rotated layout.
By tuning the gap and shape, the authors couple a simple dipole mode with a higher order mode. That coupling produces a Fano resonance, a sharp asymmetric feature in the spectrum, along with a strong difference in how left and right circular light are absorbed. The layout with the largest asymmetry factor gave the strongest signal. The signal also shifted sensitively with the refractive index nearby, above all in visible and near infrared light. The authors propose it for high sensitivity sensing.
Catalog record
| CREATOR | Wanlu Bian, Guodong Zhu, Fengcai Ma, Tongtong Zhu, Yurui Fang, Flavio Esposito |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 18 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |