Journal
OPTICS LETTERS
Volume 44, Issue 15, Pages 3641-3644Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.44.003641
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Funding
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO) [Veni-15940, ZonMW 104003006]
- Deutsche Forschungsgemeinschaft (DFG) [DFG-EXC 2167]
- H2020 European Research Council (ERC) (ERC CoG_ENCOMOLE-2i) [646669]
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We demonstrate a tethered motorized capsule for unobstructed optical coherence tomography (OCT) imaging of the esophagus. By using a distal reflector design, we avoided the common shadow artifact induced by the motor wires. A synchronous driving technique features three types of beam-scanning modes of the capsule, i.e., circumferential beam scanning, localized beam scanning, and accurate beam positioning. We characterized these three modes and carried out ex vivo imaging experiments using the capsule. The results show that the capsule can potentially be a useful tool for diagnostic OCT imaging and OCT-guided biopsy and therapy of the esophagus. (C) 2019 Optical Society of America
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