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Photonic integration platform with pump free microfluidics

Smowton, Peter, Thomas, Robert, Harrison, Andrew and Barrow, David 2017. Photonic integration platform with pump free microfluidics. Optics Express 25 (20) , pp. 23634-23644. 10.1364/OE.25.023634

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Abstract

Chip based particle sensing using 3D capillary fill microfluidics integrated with monolithically integrated lasers and photodetectors is used to demonstrate the feasibility of true chip scale photonic measurements of fluids. The approach is scalable and manufactured using industry standard compound semiconductor fabrication tools. The need for fluid speed regulation via external pumps is removed by measuring local particle velocity at the point of interrogation and particle position within the fluid flow is derived from multiple time resolved forward scattered light signals. Particle size discrimination of 10 and 15 μm polystyrene microbeads is used as an example.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Physics and Astronomy
Subjects: Q Science > QC Physics
Publisher: Optical Society of America
ISSN: 1094-4087
Funders: EPSRC
Date of First Compliant Deposit: 31 August 2017
Date of Acceptance: 29 August 2017
Last Modified: 28 Jun 2019 03:31
URI: http://orca.cf.ac.uk/id/eprint/104193

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