激光隐身材料ErCrO_3制备及性能研究  

Preparation method and Laser camouflage performance of ErCrO_3

作　　者：李晓英[1] 牛春晖[1] 任宣玮 

机构地区：[1]北京信息科技大学仪器科学与光电工程学院,北京100192

出　　处：《激光杂志》2016年第3期16-19,共4页Laser Journal

基　　金：北京市自然科学基金资助项目(4154071);北京市优秀人才培养资助青年骨干个人项目(201400002012G105)

摘　　要：研究了ErCrO_3材料制备工艺并对其激光隐身特性进行了评估。通过对不同煅烧温度制备材料的XRD比较发现,当温度达到1300℃,能完全生成ErCrO_3;从漫反射光谱可以看到在1.06μm和1.55μm处有较强的吸收;当材料厚度约为0.2mm时,对1.55μm最大吸收率大于60%,并且材料反射光在空间分布近似朗伯分布;而当入射激光功率增加时,材料的空间反射率呈现非线性,在阈值功率以下几乎全部吸收,而在阈值功率以上,吸收饱和。所研制的ErCrO_3材料可以用于可见光隐身和激光隐身。Preparation method of ErCrO3 material is studied and its laser camouflage performance is estimated. Through comparing XRD diagrams of samples with different calcination temperatures, it is known that ErCrO3 can be completely produced when calcination temperature is higher than 1300℃. It can be observed on diffuse reflection spectrum that ErCrO3 material has strong absorption to light near 1.06μm and 1.55μm and absorption factor of ErCrO3 material with 0.2mm thickness near 1.55 μm is larger than 60% , and reflection light by ErCrO3 material approximate Lambertian distribution in space. With increasing of input laser, absorption of ErCrO3 material is nonlinear, and almost whole power of light is absorbed under threshold, and saturation of absorption over threshold. Prepared ErCrO3material can be used as visible light camouflage and laser camouflage.

关 键 词：ErCrO3 高温固相法 激光隐身 漫反射光谱 

分 类 号：TN244[电子电信—物理电子学]