| Issue |
EPJ Web Conf.
Volume 335, 2025
EOS Annual Meeting (EOSAM 2025)
|
|
|---|---|---|
| Article Number | 06004 | |
| Number of page(s) | 2 | |
| Section | Topical Meeting - Nonlinear and Quantum Optics | |
| DOI | https://doi.org/10.1051/epjconf/202533506004 | |
| Published online | 22 September 2025 | |
https://doi.org/10.1051/epjconf/202533506004
Frequency up-conversion of infrared radiation in AlGaAs-on-insulator nonlocal metasurface
1 MPQ, Université Paris Cité & CNRS, Paris 75013, France
2 C2N, Université Paris-Saclay & CNRS, Palaiseau, 91120, France.
3 IUF, France
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 22 September 2025
Abstract
The ability to detect near infrared light has important applications in telecoms, medical diagnostics and remote sensing. Traditional free-space up-conversion systems based on bulk crystals are not suitable for integration purposes, due to their large footprint. Here, we employ a nonlocal dielectric metasurface as an ultra-thin up-converter, by exploiting quasi-bound states in the continuum to increase the conversion efficiency of the nonlinear process.
© The Authors, published by EDP Sciences, 2025
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