入射角度对远红外与激光兼容伪装光子晶体薄膜特性的影响研究  

Effect of the Incident Angle to the Compatible Camouflage of Photonic Crystals Film of Far Infrared and Laser Band

作　　者：王超[1] 时家明[1] 赵大鹏[1] 汪家春[1] 陈宗胜[1] 林志丹[1] 王正虬 肖桂林 

机构地区：[1]电子工程学院脉冲功率激光技术国家重点实验室 [2]73680部队 [3]73156部队

出　　处：《人工晶体学报》2013年第4期635-638,共4页Journal of Synthetic Crystals

基　　金：红外与低温等离子体安徽省重点实验室主任基金项目(2010A001002D)

摘　　要：利用薄膜光学理论中的特征矩阵法计算了所设计的光子晶体薄膜的反射光谱,利用镀膜法制备了光子晶体薄膜。同时进行了样品光谱曲线的测试,并对其在远红外波段的发射率进行了测试。测试结果表明,制备的光子晶体在10.6μm激光波长处的反射率较低,并且在除缺陷处的远红外波段的反射率较高,因此,可以实现远红外与10.6μm激光兼容。但当入射角度的增加时,激光波长处的反射率有所上升,并向短波方向偏移;在除激光波长处的远红外波段的反射率也降低较多。因此,入射角度的增加对光子晶体兼容效果的影响逐渐增大。The reflection spectra of the PCs designed are calculated by characteristic matrix method of thin-film optical theory. The PCs are prepared by plating film method. Meanwhile, both the spectrum and the emissivity in far infrared band of the sample are tested. The testing results show that the preparation of PCs is lower reflectivity at 10.6 μm laser band and higher reflectivity in addition to the defect layer at the far infrared band. Therefore it can achieve far infrared and 10.6μm laser band compatibility. When the incident angle increases, the reflectivity of the laser at a rise to the direction of the short-wave offset; in addition to the laser at the far infrared reflectivity is much lower. Therefore, the effect of the increase of the angle of incidence on the PCs is compatible with gradually increasing.

关 键 词：光子晶体 基底 兼容伪装 入射角度 

分 类 号：O434[机械工程—光学工程]