基于含金属的DBR近中红外与激光兼容隐身薄膜的设计及性能研究  

Design and Performance of Compatible Stealthy Based on Metal-DBR against Near-Mid-Infrared and Laser

作　　者：陈霞 赵亚丽 马玉峰[2] 杜超 吕德涛[2] 马腾 CHEN Xia;ZHAO Ya-li;MA Yu-feng;DU Chao;LÜDe-tao;Ma Teng(Department of Materials Science and Engineering,Jinzhong University,Jinzhong 030619,China;The 33rd Research Institute of China Electronics Technology Corporation,Taiyuan 030006,China)

机构地区：[1]晋中学院材料科学与工程系,山西晋中030619 [2]中国电子科技集团公司第三十三研究所,山西太原030006

出　　处：《量子光学学报》2023年第4期70-81,共12页Journal of Quantum Optics

基　　金：国家自然科学基金(62105131);山西省自然科学基金(202303021212508);山西省高等学校教学改革创新项目(J2021652);山西省科技创新青年人才团队(202204051001005);晋中市科技重点研发项目(Y201027)。

摘　　要：为达到近中红外与激光兼容隐身的双重目的,设计了一种由Ag和ZnS构建的含缺陷的分布式Bragg反射镜(Distributed Bragg reflector,DBR)。利用掺杂原理,在含金属的DBR中引入缺陷,使其在650~5000 nm禁带范围内1060 nm处出现缺陷模。采用COMSOL研究了周期数N_(c)、缺陷层膜厚对近中红外及缺陷模的影响规律。研究结果表明:缺陷模随缺陷层膜厚减少而蓝移。随含缺陷周期结构N_(c)增加,缺陷模宽度变窄,其缺陷模以中心波长为中心成对出现,呈现出良好反射型梳状滤波器的特征。通过控制N_(c),可对梳状滤波器的齿数和齿距进行有效控制。当N_(c)=1时,可实现650~5000 nm波段全反射,1060 nm处出现缺陷模,其反射率仅为4%。这种具备“光谱挖空”特征的含金属的DBR,能够进行近中红外波段和1060 nm处的激光兼容隐身。和异质结电介质光子晶体相比,该结构具有结构对称、结构简单、膜层层数较少的优势。In order to meet the needs of modern stealth technology and achieve the dual purpose of near-mid-infrared and laser compatible stealth,a Distributed Bragg reflector(DBR)with defects constructed by Ag and ZnS is designed.Using the COMSOL 5.6 ray optical module,it aims to seek a kind of membrane layer upon layer number is less,coating film thickness thinner compatibility in the near infrared and laser stealth coating structure.Using the doping principle,defects are introduced into metal-containing DBR,and defect modes appear at 1060 nm in the band gap range of 650∼5000 nm.The reflection performance of the DBR with defect layer and laser is calculated,and the influence of the cycle number and the thickness of the defect layer on the near mid-infrared and defect mode is studied.The influence law of period number N_(c)and defect layer film thickness on near-middle infrared reflection and defect layer was explored,and the influence law of period number on defect modulus and location was further explored.The results show that the defect modes shift to blue light with the decrease of defect film thickness.With the increase in the periodic structure N_(c)with defect,the width of the defect modes becomes narrower,and the defect modes appear in pairs with the central wavelength as the center,showing the characteristics of a good reflective comb filter.With the increase of the period number N_(c)of the structure containing defects,the defect modes are centered on the central wavelength and appear in pairs,showing the characteristics of a well-reflected comb filter.The relationship between the number of defect modes L and the number of periods N_(c)is as follows:L=2(N_(c)−1),that is,by controlling N_(c),the number of teeth and tooth spacing of the comb filter can be effectively controlled.When N_(c)=1,the total reflection in 650∼5000 nm band can be realized,and the defect mode appears at 1060 nm,and its reflectivity is only 4%.This kind of metal-containing DBR with the characteristic of"spectral hollowing"can be used fo

关 键 词：含金属的DBR 缺陷模 近中红外 激光 兼容隐身 

分 类 号：TB383.2[一般工业技术—材料科学与工程]