Open AccessInverse design of graphene-assisted metallodielectric grating and its applications in the perfect absorber and plasmonic third harmonic generation
Author(s) -
Shuai Yu,
Zhen Tian,
Xu Han,
Jian Dai,
Kun Xu
Publication year - 2020
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.410107
Subject(s) - graphene , materials science , grating , plasmon , optics , metamaterial , reflection (computer programming) , optoelectronics , photonics , photonic crystal , absorption (acoustics) , inverse , second harmonic generation , nanotechnology , physics , computer science , laser , programming language , geometry , mathematics
In this article, we propose a graphene metamaterial coupled with metallodielectric grating (GMCMG) structures to achieve plasmon induced reflection effects in the reflection spectrums. In order to enhance the light-matter interaction in the graphene, the micro-genetic algorithm is applied in the performance optimization for the GMCMG. Due to the absorption enhancement of graphene and the inverse design of photonic structures, a perfect absorber and an efficient third harmonic generator are obtained by employing optimized GMCMG structures. Compared with previous works, our design scheme provides a simple and efficient method for the optimization of photonic devices and has significant applications in optical modulators, absorbers and sensors.