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
收藏
页码：494 / 504
页数：11
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