Tunable ultra-high-efficiency light absorption of monolayer graphene using critical coupling with guided resonance
Optics
2017-11-15 v1
Abstract
We numerically demonstrate a novel monolayer graphene-based perfect absorption multi-layer photonic structure by the mechanism of critical coupling with guided resonance, in which the absorption of graphene can significantly close to 99% at telecommunication wavelengths. The highly efficient absorption and spectral selectivity can be obtained with designing structural parameters in the near infrared ranges. Compared to previous works, we achieve the complete absorption of single-atomic-layer graphene in the perfect absorber for the first time, which not only opens up new methods of enhancing the light-graphene interaction, but also makes for practical applications in high-performance optoelectronic devices, such as modulators and sensors.
Keywords
Cite
@article{arxiv.1709.02187,
title = {Tunable ultra-high-efficiency light absorption of monolayer graphene using critical coupling with guided resonance},
author = {Xiaoyun Jiang and Tao Wang and Shuyuan Xiao and Xicheng Yan and Le Cheng},
journal= {arXiv preprint arXiv:1709.02187},
year = {2017}
}