Enhanced graphene-light interaction assisted by magnetic plasmons in metallic nanogroove arrays

Bandwidth tunability of graphene absorption enhancement by hybridization of delocalized surface plasmon polaritons and localized magnetic plasmons

“…The surface conductivity σ and the permittivity ε g of graphene are calculated by the following two analytical expressions [51][52][53][54][55]: In the expressions, i is imaginary unit, k B is Boltzmann constant, e is electron charge, π is circular constant, ω is angular frequency, ħ is reduced Planck constant, and ε 0 is vacuum permittivity. The slit arrays can be firstly fabricated by the advanced focused-ion-beam etching technique, and then the prepared graphene monolayer is transferred on the silver substrate [56,57]. In numerical calculations, a Gauss pulse acts as incident light.…”

Transmission‐Type Optical Modulator Based on Graphene Plasmonic Resonator Integrated with Off‐Resonant Au Structure

“…[ 1–5 ] Graphene as a promising candidate has been intensively researched due to its unusual electro‐optical properties. [ 6–17 ] To date, various methods have been adopted to design the modulator with high efficiency, including large chemical doping, [ 18–20 ] coupling with an additional resonator, [ 21–24 ] and integrating with Salisbury screens (consisting of a single reflective mirror). [ 25–30 ] However, those methods also have some limitations.…”