Abstract
We study the scattering of waves at an interface whose properties vary in time, characterized by Lorentzian dispersion and an abrupt change in its parameters. Our work uncovers an unconventional mechanism in which novel frequency components are generated at the eigenmodes of the system. This phenomenon enables coupling between propagating and evanescent waves, allowing surface-wave modes to be directly excited from the far field without relying on spatially structured media. In addition, space-time interfaces can support unexpected optical spin effects induced by phase conjugation.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 16th International Conference on Metamaterials, Photonic Crystals and Plasmonics (META 2026) |
| Editors | O. Hess, S. Zouhdi |
| Publisher | META Conference |
| Pages | 306-307 |
| Number of pages | 2 |
| Publication status | Published - 14 Jul 2026 |
| Event | 16th International Conference on Metamaterials, Photonic Crystals and Plasmonics 2026 - Dublin, Ireland Duration: 14 Jul 2026 → 17 Jul 2026 |
Conference
| Conference | 16th International Conference on Metamaterials, Photonic Crystals and Plasmonics 2026 |
|---|---|
| Abbreviated title | META 2026 |
| Country/Territory | Ireland |
| City | Dublin |
| Period | 14/07/26 → 17/07/26 |
Keywords
- linear frequency generation
- metamaterials
- space-time interfaces
- time-varying
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Materials Science (miscellaneous)
- Materials Chemistry
- Electrical and Electronic Engineering
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