Dual sensing-light-sheet OCT for microfluidic PTV

J. M. Hallam; E. Rigas; H. D. Ford; T. O. H. Charrett; R. P. Tatam

doi:10.1117/12.2319582

18 August 2018 Dual sensing-light-sheet OCT for microfluidic PTV

J. M. Hallam, E. Rigas, H. D. Ford, T. O. H. Charrett, R. P. Tatam

Proceedings Volume 10749, Interferometry XIX; 107490M (2018) https://doi.org/10.1117/12.2319582
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

A novel dual beam Optical Coherence Tomography (OCT) system is presented for microfluidics applications. The dual sensing-light-sheet approach presented here achieves high velocity flow measurement because the rapid re-imaging by the second sensing-light-sheet allows for particle tracking between each image-frame of the pair. We have demonstrated measurements of microchannel flow using 10 μm particles in a 700 μm deep channel with peak velocities of approximately 0.28 metres-per-second (m/s), approximately two orders of magnitude higher than previously reported OCT systems operating at a few millimeters-per-second.

Citation Download Citation

J. M. Hallam, E. Rigas, H. D. Ford, T. O. H. Charrett, and R. P. Tatam "Dual sensing-light-sheet OCT for microfluidic PTV", Proc. SPIE 10749, Interferometry XIX, 107490M (18 August 2018); https://doi.org/10.1117/12.2319582

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