| Issue |
EPJ Web Conf.
Volume 335, 2025
EOS Annual Meeting (EOSAM 2025)
|
|
|---|---|---|
| Article Number | 09001 | |
| Number of page(s) | 2 | |
| Section | Topical Meeting - Quantum Polaritonics | |
| DOI | https://doi.org/10.1051/epjconf/202533509001 | |
| Published online | 22 September 2025 | |
https://doi.org/10.1051/epjconf/202533509001
Invited - Nonlinear plasmonics in 2D nanoribbons and heterostructures
1 POLIMA Center for Polariton-driven Light−Matter Interactions, University of Southern Denmark, DK-5230 Odense M, Denmark.
2 Danish Institute for Advanced Study, University of Southern Denmark, DK-5230 Odense M, Denmark.
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 22 September 2025
Abstract
We explore the nonlinear optical properties of graphene and phosphorene nanoribbons using ab initio modeling and self-consistent perturbation theory. These two-dimensional materials exhibit significant potential for frequency conversion, optical modulation, and ultrafast signal processing due to their inherent nonlinear responses and tunable plasmonic characteristics. Our investigations reveal that graphene nanoribbons (GNRs) photoexcited by intense ultrashort optical pulses exhibit strong transient nonlinear optical responses driven by thermally activated plasmons, demonstrating a robust, non-invasive method for achieving tunable nonlinear effects without the need for excessive charge carrier doping. In a parallel study, we investigate enhanced nonlinear interactions in nanoribbon heterostructures, where the synergetic combination of tunable plasmons and anharmonic electron dispersion in graphene and phosphorene offers unique opportunities for device engineering.
© The Authors, published by EDP Sciences, 2025
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