Enhancement of optical coherence tomography imaging through dynamic light scattering

Klaudia Nowacka; Karol Karnowski; Piotr Kasprzycki; Maciej Wojtkowski; Dawid Borycki

doi:10.1117/12.3005566

12 March 2024 Enhancement of optical coherence tomography imaging through dynamic light scattering

Klaudia Nowacka, Karol Karnowski, Piotr Kasprzycki, Maciej Wojtkowski, Dawid Borycki

Proceedings Volume 12830, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVIII; 128300Q (2024) https://doi.org/10.1117/12.3005566
Event: SPIE BiOS, 2024, San Francisco, California, United States

Abstract

In this study we demonstrated the effectiveness of dynamic light scattering (DLS) in enhancing the resolution of optical coherence tomography (OCT) images of static samples. By carefully analyzing the movement of particles within the sample, utilizing the autocorrelation function of the backscattered light and performing averaging of OCT images captured at different time points, we were able to effectively suppress spatial coherence and achieve improved transverse resolution in the images. Additionally, this technique holds the potential for providing valuable insights into the internal movements of biological samples, such as blood flow. To validate our method, we conducted experiments using an OCT system and introduced scatterers exhibiting random Brownian motion. The enhanced spatial resolution was clearly demonstrated through the visualization of cross-sections of bars and the analysis of B-scans. Our findings pave the way for further advancements in OCT imaging techniques and offer promising applications in the study of static biological samples.

Conference Presentation

Citation Download Citation

Klaudia Nowacka, Karol Karnowski, Piotr Kasprzycki, Maciej Wojtkowski, and Dawid Borycki "Enhancement of optical coherence tomography imaging through dynamic light scattering", Proc. SPIE 12830, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVIII, 128300Q (12 March 2024); https://doi.org/10.1117/12.3005566

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