Source：Light: Science & Applications
Authors：Xurong Li、Jingxi Li、Yuhang Li、Aydogan Ozcan、Mona Jarrahi
Published：2023-09-15
DOI：10.1038/s41377-023-01294-9
Link：https://www.nature.com/articles/s41377-023-01278-0
Core Research Progress
Traditional terahertz imaging relies on raster scanning, which suffers from slow imaging speed and restricts its industrial application. From the perspectives of hardware architecture and computational imaging, this review systematically summarizes the research progress of high-throughput terahertz imaging. It compares various sensor array solutions in the time and frequency domains, and verifies that the combined optimization of hardware and software enables efficient multi-dimensional imaging covering time-of-flight, spectroscopy, phase and intensity. In addition, this paper outlines the existing limitations and future development directions of the technology.
Technical Application Value
High-throughput terahertz imaging overcomes the limitations of low speed and low throughput in conventional imaging, greatly boosting detection efficiency and accelerating its transition from laboratory research to practical engineering applications. It is widely applicable to industrial non-destructive testing, biomedical diagnosis and treatment, as well as public security screening. This work provides theoretical support for the iteration of high-precision and high-speed terahertz detection equipment, and clearly identifies the opportunities and challenges for next-generation technological development.
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