Work

Electromagnetic study of a split-ring resonator metamaterial with cold-electron bolometers

Year: 2025

Type: article

Abstract: We present an electromagnetic study of a metamaterial receiver based on split-ring resonators with integrated cold-electron bolometers. We suggest a modified antenna design that allows one to significantly increase the absorbed power and the bandwidth. The trade-off between the bandwidth expansion due to miniaturization and the reduction in absorption efficiency determined by the Airy spot size of the coupling lens is investigated. To solve this issue, a simultaneous miniaturization of the size of the entire structure with an increase in the number of array elements is proposed. The design with a 37-element array demonstrates an increase in power absorption by a factor of 1.4 compared to the original 19-element single-ring array, as well as an increase in operating bandwidth from 160 to 820 GHz.

Source: Beilstein Journal of Nanotechnology

DOI: 10.3762/bjnano.16.152

Authors: Ekaterina A Matrozova, Alexander V Chiginev, Leonid S Revin, Andrey L Pankratov

Institutions: Nizhny Novgorod State Technical University, Institute for Physics of Microstructures

Language: English

Topic: Metamaterials and Metasurfaces Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: diamond

Funder: Russian Science Foundation

Awards: G3031864585, G7993499013