A 25 fps 32 × 24 Digital CMOS Terahertz Image Sensor
A 25 fps 32 × 24 Digital CMOS Terahertz Image Sensor
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DOI：
10.1109/asscc.2018.8579336
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发表时间：
2018-11
期刊：
影响因子：
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通讯作者：
Tong Fang;Runjiang Dou;Liyuan Liu;Jian Liu;N. Wu
中科院分区：
文献类型：
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作者：
Tong Fang;Runjiang Dou;Liyuan Liu;Jian Liu;N. Wu
提出了一种用于860ghz频率下25fps成像的32×24数字CMOS太赫兹图像传感器。提出了无DRC结构的像素，采用柱并行读出结构。传感器阵列和读出电路完全集成到一个单一的硅芯片在180纳米CMOS工艺。860 GHz时测得的单像元平均室温响应度为1.28 kV/W。太赫兹图像传感器在连续波照明下的工作速度可达25fps，我们获得了一段旋转叶片斩除后向波振荡器（BWO）源光束的视频，视频中可以清晰地分辨出旋转叶片。
A 32×24 digital CMOS terahertz image sensor for 25 fps imaging at 860 GHz is presented. Pixel with DRC free structure is proposed and column parallel readout architecture is employed. The sensor array and the readout circuits are fully integrated into one single silicon chip in 180 nm CMOS process. Measured averaged room-temperature responsivity of single pixel is 1.28 kV/W at 860 GHz. The THz image sensor can operate up to 25 fps under continuous–wave illumination, and we acquired a video of a rotating blade chopping the backward wave oscillator (BWO) source beam, and the rotating blade can be clearly distinguished in the video.