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Opt. Express"],"published-print":{"date-parts":[[2023,8,1]]},"abstract":"<jats:p>We demonstrate a free-space, trolley-mountable Fourier domain visible-light optical coherence tomography (OCT) system for studying the stratum corneum in non-palmar human skin. An axial resolution of 1 \u00b5m in tissue and at least \u221275\u2005dB sensitivity have been achieved. High-quality B-scans, containing 1600 A-scans, are acquired at a rate of 39\u2005Hz. Images from the dorsal hand, ventral wrist and ventral forearm areas are obtained, with a clearly resolved stratum corneum layer (typically 5\u201315 \u00b5m thick) presenting as a hypoechogenic dark layer below the bright entrance signal, similar to that found in palmar skin with traditional OCT systems. 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Further distribution of this work must maintain attribution to the author(s) and the published article\u2019s title, journal citation, and DOI.","name":"copyright","label":"Copyright"}]}}