Graphene-Based Absorber: Tunable, Highly Sensitive, Six-Frequency DOI Creative Commons
Xinmei Wang, Xiaoyong He, Hua Yang

и другие.

Molecules, Год журнала: 2025, Номер 30(8), С. 1688 - 1688

Опубликована: Апрель 10, 2025

Due to the equipartition exciton property of graphene metamaterials, researchers have applied them design absorbers and developed a series covering different wavebands (including narrowband broadband). In this paper, an absorber based on surface-isotropic excitations was designed with help metamaterials relevant simulations. The exhibited six perfect absorption peaks in mid-infrared band had extremely simple structure consisting only three layers: gold layer at bottom, dielectric made silica middle, patterned top. This possesses excellent tuning ability, by applying external bias layer, Fermi energy level can be adjusted, thus resonance frequency peak tuned. Meanwhile, effect relaxation time performance investigated. addition, refractive index found linearly related peak. It is worth mentioning that possessed polarization insensitivity due its central symmetry. Even when incident light polarizations over wide range angles, change absorbance negligible, demonstrating significant angle incidence. sensor characteristics such as tunability, insensitivity, high sensitivity. paper demonstrates feasibility six-frequency opens up more ideas for multi-frequency sensors.

Язык: Английский

Recent advances in graphene origami-enabled auxetic metamaterial structures DOI Creative Commons
Jinlong Yang, Shaoyu Zhao, Jie Yang

и другие.

Engineering Structures, Год журнала: 2025, Номер 333, С. 120203 - 120203

Опубликована: Март 31, 2025

Язык: Английский

Процитировано

2
Graphene-Based Absorber: Tunable, Highly Sensitive, Six-Frequency DOI Creative Commons
Xinmei Wang, Xiaoyong He, Hua Yang

и другие.

Molecules, Год журнала: 2025, Номер 30(8), С. 1688 - 1688

Опубликована: Апрель 10, 2025

Due to the equipartition exciton property of graphene metamaterials, researchers have applied them design absorbers and developed a series covering different wavebands (including narrowband broadband). In this paper, an absorber based on surface-isotropic excitations was designed with help metamaterials relevant simulations. The exhibited six perfect absorption peaks in mid-infrared band had extremely simple structure consisting only three layers: gold layer at bottom, dielectric made silica middle, patterned top. This possesses excellent tuning ability, by applying external bias layer, Fermi energy level can be adjusted, thus resonance frequency peak tuned. Meanwhile, effect relaxation time performance investigated. addition, refractive index found linearly related peak. It is worth mentioning that possessed polarization insensitivity due its central symmetry. Even when incident light polarizations over wide range angles, change absorbance negligible, demonstrating significant angle incidence. sensor characteristics such as tunability, insensitivity, high sensitivity. paper demonstrates feasibility six-frequency opens up more ideas for multi-frequency sensors.

Язык: Английский

Процитировано

0