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本文提出了一种工作在3.08-3.86THz频段的16.4k像素数字实时CMOS图像传感器，实现了73dB动态范围，解决了太赫兹CMOS图像传感器在3-4THz频段缺失的问题，并优化了片上天线辐射效率与带宽的权衡。
Terahertz (THz) imaging has promising applications in chemical and biomedical systems, industrial defect inspection, security screening, and radio astronomy owing to its favorable resolution and nondestructive features [1]. The existing atmosphere absorption notches in the 3-to-4THz frequency band provide a convincing opportunity for highresolution THz imaging and its practical application. Unfortunately, no 3-to-4THz band CMOS image sensors have been reported so far because of the following difficulties. First, it is a challenge to trade off on-chip antenna radiation efficiency and bandwidth to implement 3-to-4THz pixels with sufficient sensitivity. Second, large pixel pitch and complex readout circuitry are not friendly to high-resolution image sensing due to
Min Liu1, Ziteng Cai1, Shaohua Zhou2, Man-Kay Law3, Jian Liu1, Jianguo Ma4,
Nanjian Wu1, Liyuan Liu1 Chinese Academy of Sciences, Beijing, China Tianjin University, Tianjin, China 3 University of Macau, Macau, China, 4Zhejiang University, Hangzhou, China 1 2