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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Microfluidic volumetric flow determination using optical coherence tomography speckle: An autocorrelation approach

Full text
Author(s):
De Pretto, Lucas R. [1] ; Nogueira, Gesse E. C. [1] ; Freitas, Anderson Z. [1]
Total Authors: 3
Affiliation:
[1] IPEN CNEN SP, Inst Pesquisas Energet & Nucl, Ave Lineu Prestes 2242, BR-05508000 Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Journal of Applied Physics; v. 119, n. 16 APR 28 2016.
Web of Science Citations: 2
Abstract

Functional modalities of Optical Coherence Tomography (OCT) based on speckle analysis are emerging in the literature. We propose a simple approach to the autocorrelation of OCT signal to enable volumetric flow rate differentiation, based on decorrelation time. Our results show that this technique could distinguish flows separated by 3 mu l/min, limited by the acquisition speed of the system. We further perform a B-scan of gradient flow inside a microchannel, enabling the visualization of the drag effect on the walls. Published by AIP Publishing. (AU)

FAPESP's process: 13/09311-9 - Use of speckle patterns in optical coherence tomography images for characterization of microfluidic circuits and microcirculation in tissue
Grantee:Anderson Zanardi de Freitas
Support Opportunities: Regular Research Grants
FAPESP's process: 13/05492-9 - Characterization of microfluidic circuits using speckle patterns in optical coherence tomography images
Grantee:Lucas Ramos de Pretto
Support Opportunities: Scholarships in Brazil - Master