Parametric metasurfaces for electromagnetic wave amplification
Fuente:
arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866914661850415104 |
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| author | Kovalev, Fedor V. Shadrivov, Ilya V. |
| author_facet | Kovalev, Fedor V. Shadrivov, Ilya V. |
| contents | We study parametric amplification of electromagnetic waves using metasurfaces. We design a variable capacitor-loaded metasurface that can amplify incident electromagnetic waves. We analyze various regimes of operation of the system and find that we can achieve a significant gain (over 10 dB) in just one layer of such a structure, and this gain can be controlled by parametric modulation. We study the instability threshold for this system and show that a simple theoretical model agrees well with the results of full numerical simulations. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_11208 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Parametric metasurfaces for electromagnetic wave amplification Kovalev, Fedor V. Shadrivov, Ilya V. Applied Physics Optics We study parametric amplification of electromagnetic waves using metasurfaces. We design a variable capacitor-loaded metasurface that can amplify incident electromagnetic waves. We analyze various regimes of operation of the system and find that we can achieve a significant gain (over 10 dB) in just one layer of such a structure, and this gain can be controlled by parametric modulation. We study the instability threshold for this system and show that a simple theoretical model agrees well with the results of full numerical simulations. |
| title | Parametric metasurfaces for electromagnetic wave amplification |
| topic | Applied Physics Optics |
| url | https://arxiv.org/abs/2308.11208 |