Sub-diffusion flow velocimetry with number fluctuation optical coherence tomography

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Abstract

We show number fluctuations dynamic light scattering optical coherence tomography (OCT) for measuring extremely slow, sub-diffusion flows of dilute particle suspensions. Our method removes the minimum measurable velocity limitation of conventional correlation-based or phase-resolved Doppler OCT, set by flowing particles’ Brownian motion. Our technique works for any Doppler angle, is applicable to 2D flow imaging with scanning OCT systems and can be used to determine concentration of particles under flow.

Original languageEnglish
Title of host publicationOptical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVII
EditorsJoseph A. Izatt, James G. Fujimoto
PublisherSPIE
Number of pages4
ISBN (Electronic)9781510658394
DOIs
Publication statusPublished - 2023
EventOptical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVII 2023 - San Francisco, United States
Duration: 30 Jan 20231 Feb 2023

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume12367
ISSN (Print)1605-7422

Conference

ConferenceOptical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVII 2023
Country/TerritoryUnited States
CitySan Francisco
Period30/01/231/02/23

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