Graphene-based ultra-wideband absorber for terahertz applications using hexagonal split ring resonators

P Upender, A Kumar - Physica Scripta, 2022 - iopscience.iop.org
In this paper, a hexagonal split ring ultra-wideband absorber is proposed at THz frequency.
The proposed structure consists of four graphene based hexagonal split rings, a dielectric …

Design of a multiband graphene-based absorber for terahertz applications using different geometric shapes

P Upender, A Kumar - Journal of the Optical Society of America B, 2021 - opg.optica.org
By integrating multiple graphene-based geometric shapes, a unique absorber is proposed
in this research, which achieves absorption peaks at 10 resonant frequencies, with an …

Optoelectronic application of graphene nanoribbon for mid-infrared bandpass filtering

A Tavousi, MA Mansouri-Birjandi, M Janfaza - Applied Optics, 2018 - opg.optica.org
In this study, an ultra-compact optoelectronic bandpass filter is proposed. A single piece of
graphene nanoribbon (GNR) is placed between two input–output GNRs to form a Fabry …

Tunable modulators based on single and double graphene-based resonator systems in the mid-infrared spectrum

T Nurmohammadi, K Abbasian, MZ Mashayekhi - Optik, 2022 - Elsevier
Tunable modulators based on single and double graphene-based resonator systems are
studied numerically in the mid-infrared spectrum. Employing 3D-FDTD (3D Finite-Difference …

A novel 3D encapsulation structure based on subwavelength structure and inserted pyrex glass for RF MEMS infrared detectors

J Zhao, M Ge, C Song, L Sun, H Sun - Electronics, 2019 - mdpi.com
A novel wafer-level three-dimensional (3D) encapsulation structure was designed for radio-
frequency microelectromechanical system (RF MEMS) infrared detectors and investigated …

Mode conversion of the edge modes in the graphene double-ribbon bend

L Zhang, B Xue, Y Wang - Materials, 2019 - mdpi.com
In this paper, a new kind of graphene double-ribbon bend structure, which can support two
edge graphene surface plasmons (EGSPs) modes, is proposed. In this double-ribbon bend …