Rapid imaging and product screening with low-cost line-field Fourier domain optical coherence tomography

Zhang, Zijian and Yang, Xingyu and Zhao, Zhiyi and Zeng, Feng and Ye, Sicong and Baldock, Sara and Lin, Hungyen and Hardy, John and Zheng, Yalin and Shen, Yaochun (2023) Rapid imaging and product screening with low-cost line-field Fourier domain optical coherence tomography. Scientific Reports, 13: 10809. ISSN 2045-2322

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Abstract

Fourier domain optical coherence tomography (FD-OCT) is a well-established imaging technique that provides high-resolution internal structure images of an object at a fast speed. Modern FD-OCT systems typically operate at speeds of 40,000–100,000 A-scans/s, but are priced at least tens of thousands of pounds. In this study, we demonstrate a line-field FD-OCT (LF-FD-OCT) system that achieves an OCT imaging speed of 100,000 A-scan/s at a hardware cost of thousands of pounds. We demonstrate the potential of LF-FD-OCT for biomedical and industrial imaging applications such as corneas, 3D printed electronics, and printed circuit boards.