Strain effects on optical properties of linearly polarized resonant modes in the presence of monolayer graphene

TL;DR

This paper investigates how small strains in graphene can modulate polarized resonant modes and surface plasmon resonances in photonic structures, enhancing optical sensing capabilities.

Contribution

It introduces a numerical analysis of strain effects on optical resonances in graphene-based photonic devices using transfer matrix and evanescent wave methods.

Findings

Small strain fields can linearly modulate resonant modes.

Strain influences surface plasmon resonance frequencies.

Optical properties are tunable via mechanical deformation.

Abstract

Recently, huge attention has been drawn to improve optical sensing devices based on photonic resonators in the presence of graphene. In this paper, based on the transfer matrix approach and TE polarization for the incident electromagnetic waves, we numerically evaluate the transmission and reflection spectra for one-dimensional photonic resonators and surface plasmon resonances with strained graphene, respectively. We proved that a relatively small strain field in graphene can modulate linearly polarized resonant modes within the photonic bandgap of the defective crystal. Moreover, we study the strain effects on the surface plasmon resonances created by the evanescent wave technique at the interference between a monolayer graphene and prism.