Optical pumps and sensors for microfluidic devices

Miles Padgett; Roberto Di Leonardo; Jonathan Leach; Hasan Mushfique; Jon Cooper

doi:10.1117/12.649505

9 February 2006 Optical pumps and sensors for microfluidic devices

Miles Padgett, Roberto Di Leonardo, Jonathan Leach, Hasan Mushfique, Jon Cooper

Proceedings Volume 6131, Nanomanipulation with Light II; 61310B (2006) https://doi.org/10.1117/12.649505
Event: Integrated Optoelectronic Devices 2006, 2006, San Jose, California, United States

Abstract

We use holographic optical tweezers to create and monitor the liquid flow within a micro-fluidic device. Using the tweezers to both trap and spin micron-sized beads within a 10-20 micron wide channel creates a fluid flow of the order of 200 cubic microns/sec. We also use the optical tweezers to measure the fluid flow by trapping and releasing probe particles that are imaged with high temporal and spatial resolution. Using the multi-trap capability of the holographic optical tweezers we measure the transverse fluid velocity at many positions simultaneously with an accuracy of better than 1 micron/sec. Such studies are highly pertinent to lab-on-chip systems for various applications and studies within the biosciences.

Citation Download Citation

Miles Padgett, Roberto Di Leonardo, Jonathan Leach, Hasan Mushfique, and Jon Cooper "Optical pumps and sensors for microfluidic devices", Proc. SPIE 6131, Nanomanipulation with Light II, 61310B (9 February 2006); https://doi.org/10.1117/12.649505

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