Optical forcing of microdrops: Flows and temperature field characterization

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A laser focused inside a microchannel was recently used as an optical valve to manipulate the formation of water drops in oil [1]. The heating of the interface induces a hydrodynamic force through the creation of convection rolls in the fluids. Here, we report the measurements of the temperature rise due to laser absorption in a quasi 2D geometry, that we extrapolate to the microdrop geometry. Also, the velocity field created inside the water by the thermal gradient was measured and from it the development time of the force was deduced.

Original languageEnglish
Title of host publicationProceedings of the 11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007
EditorsJean-Louis Viovy, Patrick Tabeling, Stephanie Descroix, Laurent Malaquin
PublisherChemical and Biological Microsystems Society
Pages343-345
Number of pages3
ISBN (Electronic)9780979806407
Publication statusPublished - 1 Jan 2007
Event11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007 - Paris, France
Duration: 7 Oct 200711 Oct 2007

Publication series

NameProceedings of the 11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007

Conference

Conference11th International Conference on Miniaturized Systems for Chemistry and Life Sciences, uTAS 2007
Country/TerritoryFrance
CityParis
Period7/10/0711/10/07

Keywords

  • Droplet Microfluidics
  • Optical Forcing

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