doi: 10.1364/OE.26.033534.
Line-field confocal time-domain optical coherence tomography with dynamic focusing
- PMID: 30650800
- DOI: 10.1364/OE.26.033534
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Line-field confocal time-domain optical coherence tomography with dynamic focusing
Opt Express.
.
Free article
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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