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5 March 2021 Dynamic light scattering improves imaging with optical coherence tomography
Klaudia Nowacka, Karol Karnowski, Maciej Wojtkowski, Dawid Borycki
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Proceedings Volume 11641, Dynamics and Fluctuations in Biomedical Photonics XVIII; 116410P (2021) https://doi.org/10.1117/12.2583047
Event: SPIE BiOS, 2021, Online Only
Abstract
Optical coherence tomography (OCT) is a well-established modality for structural and functional imaging of the biological samples. Conventional scanning OCT combines the low temporal coherence with confocal gating to reject multiply scattered light. However, OCT uses a spatially coherent light source, and thus, is susceptible to speckle noise, which reduces the transverse resolution. We use dynamic light scattering to improve the transverse resolution. The dynamic scattering particles induce speckles, that change over time due to particle displacement. By incoherently averaging OCT images acquired under different particle distributions, we effectively suppress the spatial coherence and improve transverse image resolution.
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Klaudia Nowacka, Karol Karnowski, Maciej Wojtkowski, and Dawid Borycki "Dynamic light scattering improves imaging with optical coherence tomography", Proc. SPIE 11641, Dynamics and Fluctuations in Biomedical Photonics XVIII, 116410P (5 March 2021); https://doi.org/10.1117/12.2583047
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KEYWORDS
Optical coherence tomography
Coherence imaging
Dynamic light scattering
Particles
Light scattering
Optical imaging
Image resolution
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