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. 2019 Jul 17;9:10388. doi: 10.1038/s41598-019-45902-9

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© The Author(s) 2019

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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SM-OCT imaging of mouse brain in vivo reveals cortical layers. (a) The sample arm the SM-OCT system, L₁ is the main lens of the OCT, the diffuser is rotated in the focal plane, which is relayed by two lenses, L₂, in a 4f configuration. (b) OCT B-scan of mouse cortex. (c) SM-OCT B-scan of mouse cortex, showing the cortical layers, which are revealed by removing the speckle noise. (d) Histology of mouse brain (image credit: Allen Institute)⁶², showing the corresponding cortical layers to SM-OCT.