近红外单/多频石墨烯谐振腔吸波器研究  

The Absorber Based on Graphene Cavity Single/Multi Frequency in Near-infrared Range

作　　者：宁仁霞[1,2] 刘少斌[2] 章海锋[2] 孔祥鲲[2] 

机构地区：[1]黄山学院信息工程学院,安徽黄山245041 [2]南京航空航天大学电子信息工程学院雷达成像与微波光子技术教育部重点实验室,江苏南京210016

出　　处：《红外》2014年第8期15-20,共6页Infrared

基　　金：国家自然科学基金项目(61307052);航空科学基金项目(20121852030);江苏省自然科学基金项目(BK2011727);黄山学院科研项目(2010xkj006);安徽省自然科学项目(KJ2013B267)

摘　　要：采用传输矩阵法研究了石墨烯谐振腔在一维周期结构中的吸波特性.在700～950 nm波段,通过改变不同介质的尺寸、入射角大小以及电磁波模式等参数,分析了吸收频点及吸收峰值的变化情况.研究结果表明,在改变缺陷层的尺寸时,可产生单频点或双频点吸收峰;入射角及电磁波模式的变化对吸收峰的峰值影响较大.以上分析结果可以为近红外石墨烯吸波器的设计提供理论依据.The absorption characteristics of a grapheme cavity in a one-dimensional periodic structure are studied by using a transfer matrix method. The variation of the absorption frequency and absorption peaks in the waveband from 700 nm to 950 nm is analyzed by changing the size of different media, the incident angle and the electromagnetic wave mode. The result shows that single frequency or two frequency peaks may be produced when the thickness of the defect layer is changed. The variation of the incident angle and electromagnetic wave mode has a greater influence on the values of absorption peaks. The result may provide theoretical basis for the design of near infrared grapheme absorbers.

关 键 词：石墨烯 吸收特性 传输矩阵 近红外 

分 类 号：O441[理学—电磁学]