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arXiv · 2308.11208

Parametric metasurfaces for electromagnetic wave amplification

Fedor V. Kovalev·Ilya V. Shadrivov
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Abstract

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.

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Fedor V. Kovalev, Ilya V. Shadrivov. 2024-01-31. Parametric metasurfaces for electromagnetic wave amplification. https://doi.org/10.1364/ome.515132

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