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Phase-resolved optical doppler tomography for imaging flow dynamics in microfluidic channels

  • Author(s): Wang, L
  • Xu, W
  • Bachman, M
  • Li, GP
  • Chen, Z
  • et al.

Published Web Location

https://doi.org/10.1063/1.1785854Creative Commons 'BY' version 4.0 license
Abstract

A flow metrology system based on phase resolved optical Doppler tomography (ODT) for producing a cross sectional velocity image of turbid fluid flow through microfluidic channels was discussed. The ODT system had a spatial resolution of 7 μm and an axial scanning rate of 500Hz. The imaging speed was improved by replacing the galvo mirror with a resonant galvo mirror which operated at 8kHz. The technique was used in constructing cross sectional images of flows with high resolution.

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