Work

Parametric metasurfaces for electromagnetic wave amplification

Year: 2024

Type: article

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.

Source: Optical Materials Express

DOI: 10.1364/ome.515132

Authors: Fedor V. Kovalev, Ilya V. Shadrivov

Institutions: Australian National University, ARC Centre of Excellence for Transformative Meta-Optical Systems

Language: English

Topic: Metamaterials and Metasurfaces Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,843

Funder: Australian Research Council