表面微结构对平面黑体反射比的影响研究  

Research on influence of surface microstructure on plane blackbody reflectance

作　　者：马宇轩 冯国进[1] 刘子龙[1] 张巧香[1] 郑春弟[1] 吴厚平[1] 甘海勇 梁凤臣 李雨霄 MA Yuxuan;FENG Guojin;LIU Zilong;ZHANG Qiaoxiang;ZHENG Chundi;WU Houping;GAN Haiyong;LIANG Fengchen;LI Yuxiao(Institute of Optics and Laser Metrology,National Institute of Metrology,Beijing 100029,China)

机构地区：[1]中国计量科学研究院光学与激光计量科学研究所,北京100029

出　　处：《应用光学》2020年第5期1014-1019,共6页Journal of Applied Optics

基　　金：国家重点研究开发计划(2016YFF200300)。

摘　　要：为了研究不同微结构对于平面黑体反射比的影响,设计了40种表面微结构由不同锥齿类别(方锥和圆锥)、高度、疏密程度的排列组合构成的平面黑体样品。样品表面采用同种工艺,喷涂同类型表面吸收涂层,以降低表面反射。利用光谱仪测量样品在可见和近红外波段的反射比,测量结果表明,微结构可使反射比从平面状态的1.4%降低至近0.4%的水平。在保持其他条件一致时,锥齿高度越高且锥齿越密集,平面黑体反射比越低;锥齿类型不同对反射比影响则不显著;与Tracepro得到的仿真值进行比较,锥齿高度越高,齿面越密集,相对误差越大,相对误差处于10%~65%范围内。In order to study the influence of different microstructures on the plane blackbody reflectance,40 kinds of plane blackbody samples with surface microstructures composed of different cone gear types(square cone and circular cone),height and density were designed.The same process was adopted on the samples surface,and the same type of surface absorption coating was sprayed to reduce the surface reflection.The reflectance of the samples in the visible and near-infrared bands was measured by the spectrometer.The measurement results show that the microstructure can reduce the reflectance from 1.4%in the plane state to nearly 0.4%.When other conditions are consistent,the higher the height of the cone gear and the denser the cone gear,the lower the reflectance of the plane blackbody;different cone gear types have no significant effect on the reflectance;compared with the simulation value obtained by the Tracepro,the higher the height of the cone gear,the denser the cone gear surface,the greater the relative error,and the relative error is in the range of 10%~65%.

关 键 词：平面黑体 反射比 锥齿形状 锥齿疏密 锥齿高低 

分 类 号：TN206[电子电信—物理电子学]