基于光子晶体的远红外与激光兼容伪装材料  

Far infrared and laser band compatible camouflage material based on photonic crystals

作　　者：高永芳[1,2] 时家明[1,2] 赵大鹏[1,2] 

机构地区：[1]脉冲功率激光技术国家重点实验室,安徽合肥230037 [2]电子工程学院安徽省红外与低温等离子体重点实验室,安徽合肥230037

出　　处：《红外与激光工程》2011年第4期647-650,共4页Infrared and Laser Engineering

基　　金：新世纪优秀人才支持计划(NCET-06-0935);安徽省红外与低温等离子体重点实验室基金(2007A005005E)

摘　　要：现代探测系统由单一工作模式向复合工作模式转变,对伪装材料的光谱特性提出了某些特殊要求。光子晶体是一种新型的人工结构功能材料,基于光子禁带的高反射特性,可以实现红外伪装;基于一维掺杂光子晶体,可以实现远红外与激光兼容伪装。设计了一种基于光子晶体的远红外与激光兼容伪装材料,利用薄膜光学理论的特征矩阵法计算了反射光谱,发现可以在反射光谱中的高反射率波段内形成局部窄带低反射区。结果表明:利用一维掺杂光子晶体可以实现远红外与激光兼容伪装。As the working mode of modern detecting system is changing from single mode to compound one,the spectral characteristics of camouflage materials are required to meet some special requirements.As a new kind of artificial structure function material,photonic crystals can realize infrared camouflage because of its high-efficiency reflection characteristic of photonic band gap;based on one dimensional doped photonic crystal,it can realize far infrared and laser band compatible camouflage.A kind of far infrared and laser band compatible camouflage material was designed,then the reflectance spectrum was calculated by characteristic matrix method based on thin-film optical theory.It was found that a local narrow band low-reflectivity region could be formed within a high-reflectivity band in reflection spectrum.The result shows that one dimensional doped photonic crystal can achieve far infrared and laser band compatible camouflage.

关 键 词：光子晶体 伪装 特征矩阵 

分 类 号：O434[机械工程—光学工程]