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9 March 2020 Spatiotemporal optical coherence (STOC) imaging (Conference Presentation)
Dawid Borycki, Piotr Wegrzyn, Egidijus Auksorius, Maciej Wojtkowski
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Proceedings Volume 11228, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXIV; 112281P (2020) https://doi.org/10.1117/12.2549012
Event: SPIE BiOS, 2020, San Francisco, California, United States
Abstract
Spatiotemporal optical coherence (STOC) imaging is a novel technique for suppressing coherent cross-talk noise in full-field swept-source OCT (FF-SS-OCT). In STOC, we use time-varying phase masks to modulate light incident on the sample. The modulated signals are averaged incoherently or coherently to yield cross-talk-free 3D images of the sample. We show that coherent averaging is only possible under specific hardware configuration. We explain this theoretically and confirm experimentally by imaging USAF chart covered by diffusers and the rat skin ex vivo. Finally, we present human forearm skin imaging in vivo. In all cases, STOC imaging reveals otherwise invisible sample features.
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Dawid Borycki, Piotr Wegrzyn, Egidijus Auksorius, and Maciej Wojtkowski "Spatiotemporal optical coherence (STOC) imaging (Conference Presentation)", Proc. SPIE 11228, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXIV, 112281P (9 March 2020); https://doi.org/10.1117/12.2549012
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KEYWORDS
Coherence imaging
Coherence (optics)
In vivo imaging
Optical imaging
Spatial light modulators
Signal processing
Modulation
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