摘要
利用传输矩阵研究结构为(AB)n D(BA)n和(AB)n DF(BA)n的一维光子晶体透射特性,其中D和F层均为旋磁材料,通过改变其外加磁场,分析其对透射率的影响.结果表明:随着外加磁场强度的变化,可产生和消灭缺陷模,且缺陷模的位置、数目以及缺陷模的光谱宽度均发生变化.表明通过改变外加磁场强度可实现光子晶体透射的可调节性.
By using transmission matrix,we studied transmission characteristics of one-dimensional photonic crystals with(AB)n D(BA)n and(AB)n DF(BA)n structure,in which the layers D and F were rotating magnetic material.We analyzed the influence of it on transmission rate by changing its external magnetic field.The results show that with the change of external magnetic field intensity,the defect mode can be produced and eliminated,and the position,number and spectral width of the defect modes are all changed.Therefore,the tunability of transmission of photonic crystal can be realized by changing the external magnetic field intensity.
作者
王光怀
张晓茹
潘庆
闫璐
刘晓静
杨涪铨
任明丽
丁雪梅
苗畅
郭义庆
WANG Guanghuai;ZHANG Xiaoru;PAN Qing;YAN Lu;LIU Xiaojing;YANG Fuquan;REN Mingli;DING Xuemei;MIAO Chang;GUO Yiqing(College of Physics,Jilin Normal University,Siping 136000,Jilin Province,China;Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China)
出处
《吉林大学学报（理学版）》
CAS
北大核心
2019年第6期1497-1503,共7页
Journal of Jilin University:Science Edition
基金
国家自然科学基金(批准号:61275047)
吉林师范大学科技创新项目(批准号:研创新201627
研创新201937)和吉林师范大学博士科研启动项目(批准号:2017005)
关键词
一维光子晶体
缺陷模
磁性材料
相对磁导率
one-dimensional photonic crystal
defect mode
magnetic material
relative permeability
