Work

A waveguide amplitude modulator based on a graphene plasmonic resonance

Year: 2025

Type: article

Abstract: Photonic waveguides with graphene can enable resonant coupling of the waveguide mode and the graphene plasmonic modes. We demonstrate theoretically that the plasmonic resonance in the hybrid waveguides can be significantly enhanced by employing a graphene nanoribbon with a deep subwavelength width when a lower-order graphene nanoribbon mode and a mode of a bare waveguide are efficiently coupled. A further increase is possible when a single graphene stripe is replaced by a finite array of graphene nanoribbons. This effect may provide a feasible platform for an efficient amplitude modulation which can be employed in the design of specific devices such as low-power modulators, filters, or sensors.

Source: Optical and Quantum Electronics

DOI: 10.1007/s11082-025-08442-3

Authors: Jiří Petráček, Jiří Čtyroký, Vladimír Kuzmiak

Institutions: Central European Institute of Technology, Brno University of Technology, Czech Academy of Sciences, Czech Academy of Sciences, Institute of Photonics and Electronics, Czech Technical University in Prague

Language: English

Topic: Plasmonic and Surface Plasmon Research

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,290

OpenAlex ID: W4414202125