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Fourier-domain full-field optical coherence tomography with real-time axial imaging

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Abstract

Fourier-domain full-field optical coherence tomography (FD-FF-OCT) is a fast interferometric imaging technique capable of volumetric sample imaging. However, half of the backscattered light from a sample is lost as it passes through a 50/50 beam splitter, which is at the heart of almost every interferometer. Here, it is demonstrated that this light could be extracted by spatially splitting the illumination pupil plane and detecting it with a separate camera. When a line camera is used to detect the recovered signal, it enables real-time axial imaging of the human cornea in vivo, which serves as a useful visual feedback for aligning a patient for imaging.

© 2021 Optical Society of America

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Supplementary Material (2)

NameDescription
Visualization 1       Real-time axial images of a few layers of a lens tissue acquired with a line camera in a Fourier-domain full-field OCT system.
Visualization 2       Real-time axial images of the human cornea acquired in vivo with a line camera in a Fourier-domain full-field OCT system.

Data availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the author upon reasonable request.

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