中南民族大学学报（自然科学版）2024，Vol.43Issue(3)：378-383,6.DOI:10.20056/j.cnki.ZNMDZK.20240312
石墨烯混合等离子体波导光子轨道角动量产生及转换器设计
Design of graphene hybrid plasmonic waveguide device for the generation and conversion of photonic orbital angular momentum
摘要
Abstract
A reconfigurable photonic orbital angular momentum generator and converter based on graphene hybrid plasma waveguide was designed to meet the increasing demand for communication capacity in modern society.The performance of the device was simulated by the time-domain finite-difference method.The simulation results showed that when the Fermi level of graphene was 0 eV,the device realized the photonic orbital angular momentum conversion of topological charge from +1 to-1 or-1 to +1 with a conversion efficiency of up to 93.6%.When the Fermi level of graphene was 0.9 eV,the device could convert the linearly polarized light to vortex light carrying orbital angular momentum.In this case,the device can also be used to identify vortex light with topological charge±1.关键词
光子轨道角动量/石墨烯/混合等离子体波导/双折射效应/模式耦合Key words
photonic orbital angular momentum/graphene/hybrid plasmonic waveguide/birefringence effect/mode coupling分类
信息技术与安全科学引用本文复制引用
肖之伟,陈竞翔,江莹,曹振洲,杨春勇..石墨烯混合等离子体波导光子轨道角动量产生及转换器设计[J].中南民族大学学报（自然科学版）,2024,43(3):378-383,6.基金项目
国家自然科学基金资助项目(62171487) （62171487）
中央高校基本科研业务费专项资金资助项目(YZF20001) （YZF20001）
