太赫兹单像素成像及其动态掩模材料的研究进展

Research Progress of Terahertz Single-Pixel Imaging and Its Dynamic Mask Materials

太赫兹成像技术在安全检查、医学成像等领域展现出了巨大的应用潜力.相比传统的机械扫描成像和焦平面阵列成像,单像素成像具有系统简单、成像速度快及成本低等优势.其可结合空间光调制技术,运用关联算法重构出目标的二维太赫兹空间信息.从太赫兹单像素成像的基本概念和发展历程出发,着重分析了单像素成像中编码掩模的原理、材料、发展应用及可能面临的挑战.

Terahertz imaging technology has shown great application potential in the fields of safety inspection and medical imaging.Compared with traditional mechanical scanning imaging and focal plane array imaging,single-pixel imaging has the advantages of simple system,fast imaging speed,and low cost.By combining spatial light modulation technology,the two-dimensional terahertz spatial information of the target can be reconstructed by using the association algorithm.Starting from the basic concept and development process of terahertz single-pixel imaging,this paper focuses on the principle,materials,development applications,and possible challenges of coding masks in single-pixel imaging.