摘要
基于等离子体共振机理,提出了一种包含金属/石墨烯/Al2O3/石墨烯堆栈结构的等离子体脊型波导.基于光电效应的微观机理分析,通过设计波导结构和等离子体结构,优化调制器的性能.结果显示,电光调制器的插入损耗很低,工作在近红外波段,调制速率为730 GHz,能量损耗为0.7 fJ/bit,3-dB带宽为3.66 THz.
Based on the theory of plasmon resonance,we present a photon plasma ridge waveguide consisting of a metal/graphene/Al2O3/graphene stacking structure.The modulation performance is optimized through the design of the waveguide and plasma structures by analyzing the microscopic mechanism of photoelectric reaction.A lowinsertion-loss near-infrared electro-optic modulator with a modulation rate of 730 GHz,energy consumption of 0.7 fJ/bit,and 3-dB bandwidth of 3.66 THz is achieved.
作者
李佳斌
王晓华
王文杰
LI Jia-Bin;WANG-Xiao-Hua;WANG Wen-Jie(School of Electronics and Information,Xi’an Polytechnic University,Xi’an 710048,China)
出处
《红外与毫米波学报》
SCIE
EI
CAS
CSCD
北大核心
2021年第2期143-149,共7页
Journal of Infrared and Millimeter Waves
基金
Supported by Research Project of Xi’an Polytechnic University(107020492)
National Natural Science Foundation of China(51905405)。
关键词
石墨烯电光调制器
等离子体结构
特性优化
机理分析
graphene-based electro-optic modulator
plasma structure
characteristic optimization
mechanism analysis
