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. 2020 Dec 9;20(24):7044. doi: 10.3390/s20247044

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Optical coherence tomography (OCT) designs enabling wavefront manipulation. (a) Mach–Zehnder design. The SLM manipulates the sample beam only [68,82,83,84,85,86]. (b) SLM at sample arm. The sample beam passes the SLM again after reflection at the sample [70]. (c) SLM at source beam. The sample and the reference beam are affected simultaneously by wavefront manipulation with the SLM [71,87,88,89]. Abbreviations: SLM—spatial light modulator, ref—reference beam. Image from [8], with permission.