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Line-field confocal time-domain optical coherence tomography with dynamic focusing

Abstract : A time-domain optical coherence tomography technique is introduced for high-resolution B-scan imaging in real-time. The technique is based on a two-beam interference microscope with line illumination and line detection using a broadband spatially coherent light source and a line-scan camera. Multiple (2048) A-scans are acquired in parallel by scanning the sample depth while adjusting the focus. Quasi-isotropic spatial resolution of 1.3 µm × 1.1 µm (lateral × axial) is achieved. In vivo cellular-level resolution imaging of human skin is demonstrated at 10 frames per second with a penetration depth of ∼500 µm.
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Submitted on : Tuesday, December 11, 2018 - 8:56:47 AM
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Arnaud Dubois, Olivier Levecq, Hicham Azimani, Arthur Davis, Jonas Ogien, et al.. Line-field confocal time-domain optical coherence tomography with dynamic focusing. Optics Express, Optical Society of America - OSA Publishing, 2018, 26 (26), pp.33534. ⟨10.1364/oe.26.033534⟩. ⟨hal-01950735⟩



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