兼容型低目标特征涂层  

Compatible Low Target Feature Coatings

作　　者：黄巍[1] 高海潮[1] 戴松涛[1] 

机构地区：[1]清华大学物理系

出　　处：《光谱学与光谱分析》2008年第9期1987-1989,共3页Spectroscopy and Spectral Analysis

基　　金：教育部科学研究重大项目(306020)资助

摘　　要：掺锡氧化铟(ITO)薄膜同时具备在近红外波段的低反射和红外波段的高反射特性,其介电常数可由Drude自由电子模型描述。SiO薄膜在特定的红外波长处有很强的吸收。将二者结合,可实现特定的光谱选择性。本文对SiO/ITO膜系的光谱选择性进行了研究,讨论了膜系结构对反射光谱的影响。通过用特征矩阵计算反射光谱,发现适当调整膜系的组合方式及选择膜层参量,用SiO/ITO膜系可以做成兼容型红外低目标特征涂层。Indium tin oxide （ITO） film has low reflectance in near infrared band while high reflectance in infrared band, and its dielectric constant can be described by Drude free-electron model. SiO film has very strong absorption at certain infrared wavelength. By combining them, certain spectral selectivity can be realized. In the present paper, the authors investigated SiO/ITO films in terms of spectrum selectivity, and discussed the influence of film structure on reflection spectrum. By means of the computation of reflection spectrum with characteristic matrix, the authors found that SiO/ITO film can be used as a compatible infrared low target feature coating by properly adjusting film arrangement and selecting suitable film parameters.

关 键 词：红外 低目标特征 兼容型涂层 

分 类 号：TB34[一般工业技术—材料科学与工程]