中国激光, 2019, 46 (6): 0614020, 网络出版: 2019-06-14
宽频段太赫兹辐射计高吸收率涂层的特性 下载: 1085次
Characteristics of Highly Absorptive Coatings Used in Terahertz Radiometry
摘要
为了对宽频段高吸收率太赫兹辐射计的特性进行表征,研究了吸收涂层材料的特性;对常见的吸波材料在太赫兹波段的吸收率进行仿真,探寻在太赫兹波段具有高吸收率的材料;将碳化硅与3M黑漆进行混合,以进一步提高涂层的吸收率,并通过仿真调整涂层内碳化硅颗粒的尺寸;根据仿真结果制备混合涂层,利用太赫兹时域光谱仪对混合涂层样品进行测量。结果表明:该混合涂层样品的光谱吸收率大于0.99,与仿真结果基本吻合。
Abstract
To characterize a wide-band and high-absorption terahertz radiometer, it is necessary to study the properties of the absorbing coating material. First, we simulated the absorption rates of common absorbing materials to find materials that have high absorption in terahertz range. Further, we mixed silicon carbide and 3M black lacquer to increase the absorption rate of the coating. In addition, we simulated the variation in the internal particle size of the coating. Finally, the mixed coating was prepared based on the simulation results, and the samples were measured using the terahertz time-domain spectrometer. The measurement results show that the spectral absorbance of the mixed coating is greater than 0.99, which is basically consistent with the simulation results.
方波, 戚岑科, 邓玉强, 高艳姣, 蔡晋辉, 颜志刚, 夏民荣. 宽频段太赫兹辐射计高吸收率涂层的特性[J]. 中国激光, 2019, 46(6): 0614020. Bo Fang, Cenke Qi, Yuqiang Deng, Yanjiao Gao, Jinhui Cai, Zhigang Yan, Minrong Xia. Characteristics of Highly Absorptive Coatings Used in Terahertz Radiometry[J]. Chinese Journal of Lasers, 2019, 46(6): 0614020.