Line-field confocal optical coherence tomography based on a Mirau interferometer

Weikai Xue; Jonas Ogien; Olivier Levecq; Arnaud Dubois

doi:10.1117/12.2555691

30 March 2020 Line-field confocal optical coherence tomography based on a Mirau interferometer

Weikai Xue, Jonas Ogien, Olivier Levecq, Arnaud Dubois

Proceedings Volume 11351, Unconventional Optical Imaging II; 113511O (2020) https://doi.org/10.1117/12.2555691
Event: SPIE Photonics Europe, 2020, Online Only

Abstract

Line-field confocal optical coherence tomography (LC-OCT) is an imaging technique based on time-domain OCT with line illumination and line detection. The focus is adjusted during the scan of the sample depth to image with high lateral resolution (~ 1 μm), similar to the axial resolution, at a central wavelength of ~ 800 nm. The LC-OCT prototypes reported so far were all based on a Linnik-type interferometer. We present in this paper a LC-OCT device based on a Mirau interferometer. This Mirau-based LC-OCT device has the advantage of being more compact and lighter. In vivo imaging of human skin with a resolution of 1.3 μm × 1.1 μm (lateral × axial) is demonstrated at 12 frames per second over a field of 0.9 mm × 0.4 mm (lateral × axial).

Conference Presentation

Citation Download Citation

Weikai Xue, Jonas Ogien, Olivier Levecq, and Arnaud Dubois "Line-field confocal optical coherence tomography based on a Mirau interferometer", Proc. SPIE 11351, Unconventional Optical Imaging II, 113511O (30 March 2020); https://doi.org/10.1117/12.2555691

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