红外与毫米波学报2019，Vol.38Issue(1)：91-96,6.DOI:10.11972/j.issn.1001-9014.2019.01.015
Bernal-Stacked双层石墨烯1.06μm谐振增强型光电探测器设计方法
Design method of Bernal-Stacked bilayer graphene 1.06 μm resonance-enhanced photodetector
摘要
Abstract
Graphene has a lowabsorption rate of light. By combining with an optical resonant cavity to restrict the light field, the absorption rate of the graphene detector element can be effectively improved.Based on the theory of electromagnetic field transmission, the optical field distribution in the bilayer graphene optical resonator is deduced, a mathematical model for the transmission matrix of the resonant enhanced photodetector is established, and a resonant enhanced photodetector for the Bernal-Stacked bilayer graphene is established. The structural parameters are numerically calculated and the detector performance is analyzed. The results showthat, the optical absorption rate of bilayer graphene reaches up to 96. 78％ for a 1. 06 μm wavelength resonant enhanced photodetector, which greatly improves the detection ability of weak optical signals.关键词
探测器/双层石墨烯/谐振增强/电磁场传输理论Key words
photodetector/bilayer graphene/resonance enhancement/electromagnetic field transmission theory分类
数理科学引用本文复制引用
牛海莎,祝连庆,刘凯铭..Bernal-Stacked双层石墨烯1.06μm谐振增强型光电探测器设计方法[J].红外与毫米波学报,2019,38(1):91-96,6.基金项目
教育部"长江学者与创新团队发展计划"项目资助(IRT_16R07) （IRT_16R07）
