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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2404.00079 |
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| _version_ | 1866929521183162368 |
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| author | Li, Zhiyu Ma, Xikui Deck-Léger, Zoé-Lise Bahrami, Amir Caloz, Christophe |
| author_facet | Li, Zhiyu Ma, Xikui Deck-Léger, Zoé-Lise Bahrami, Amir Caloz, Christophe |
| contents | Space-time modulation systems have garnered significant attention due to their resemblance to moving-matter systems and promising applications. Unlike conventional moving-matter systems, modulation systems do not involve net motion of matter, and are therefore easier to implement and not restricted to subluminal velocities. However, canonical wave-medium interaction aspects, such as scattering and energy-momentum relations, have remained largely unexplored. In this paper, we address the aforementioned issues for three dynamic systems: moving-matter blocs, moving-perturbation interfaces and moving-perturbation periodic structures, and provide corresponding general formulations along with comparisons. Our investigation reveals the significant roles played by the "catch-up" effect between waves and interfaces. Even more interestingly, it reveals different energy and momentum exchanges between moving media and homogenized moving-perturbation structures as a result of conventional and reverse Fresnel-Fizeau drag effects. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_00079 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Wave-Medium Interactions in Dynamic Matter and Modulation Systems Li, Zhiyu Ma, Xikui Deck-Léger, Zoé-Lise Bahrami, Amir Caloz, Christophe Optics Space-time modulation systems have garnered significant attention due to their resemblance to moving-matter systems and promising applications. Unlike conventional moving-matter systems, modulation systems do not involve net motion of matter, and are therefore easier to implement and not restricted to subluminal velocities. However, canonical wave-medium interaction aspects, such as scattering and energy-momentum relations, have remained largely unexplored. In this paper, we address the aforementioned issues for three dynamic systems: moving-matter blocs, moving-perturbation interfaces and moving-perturbation periodic structures, and provide corresponding general formulations along with comparisons. Our investigation reveals the significant roles played by the "catch-up" effect between waves and interfaces. Even more interestingly, it reveals different energy and momentum exchanges between moving media and homogenized moving-perturbation structures as a result of conventional and reverse Fresnel-Fizeau drag effects. |
| title | Wave-Medium Interactions in Dynamic Matter and Modulation Systems |
| topic | Optics |
| url | https://arxiv.org/abs/2404.00079 |