Parametric metasurfaces for electromagnetic wave amplification

被引：1

作者：

Kovalev, Fedor V. ^{[1
]}

Shadrivov, Ilya V. ^{[1
]}

机构：

[1] Australian Natl Univ, ARC Ctr Excellence Transformat Meta Opt Syst TMOS, Res Sch Phys, Canberra, ACT 2601, Australia

来源：

OPTICAL MATERIALS EXPRESS | 2024年 / 14卷 / 02期

基金：

澳大利亚研究理事会;

关键词：

NONLINEAR FARADAY PROCESSES; ROTATION; SEMICONDUCTORS; CRYSTAL;

D O I：

10.1364/OME.515132

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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. (c) 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

页码：494 / 504

页数：11

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