Thermo-Optical Modulator Based on VO2 and Graphene Plasmonics
Year: 2025
Type: article
Abstract: This paper details the design and theoretical analysis of a novel thermo-optical modulator that leverages the unique phase transition characteristics of vanadium dioxide (VO2) and the plasmonic properties of graphene. Employing a combination of transmission and reflection mode structures, the study explores four configurations designed to optimize modulation depth and minimize insertion loss. The analysis conducted using COMSOL Multiphysics with the finite element method (FEM) highlights the significant influence of geometrical parameters on the modulator's performance. The specific attention to the interaction between VO2's phase transition at critical temperatures and graphene's conductivity adjustment provides insights into the dynamic control of optical signals in the mid-infrared spectrum.
Source: IEEE photonics journal
Authors: Sareh Vatani, Vahid Faramarzi, Jeongwon Park
Institutions: University of Nevada, Reno, Gachon University
Language: English
Subfield: Polymers and Plastics
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,075
Awards: G3258249150, NSF Convergence Accelerator Track L: Smartphone Time-Resolved Luminescence Imaging and Detection (STRIDE) for Point-of-Care Diagnostics, NSF Convergence Accelerator Real-World Chemical Sensing Applications: A Novel Disease Detection System Based on Advanced Quantum-Dot Sensor Technology
OpenAlex ID: W4411446501