Controlled Cavitation in Microfluidic Systems

Ed Zwaan, Severine le Gac, Kinko Tsuji, Claus-Dieter Ohl

Research output: Contribution to journalArticleAcademicpeer-review

134 Citations (Scopus)
204 Downloads (Pure)

Abstract

We report on cavitation in confined microscopic environments which are commonly called microfluidic or lab-on-a-chip systems. The cavitation bubble is created by focusing a pulsed laser into these structures filled with a lght-absorbing liquid. At hte center of a 20 mu m thick and 1 mm wide channel, pancake-shaped bubbles expand an collapse radially. The bubble dynamics compare with a two-dimensional Rayleight model and a planar flow field during the bubble collapse is measured. When the bubble is created close to a wall a liquid jet is focused towards the wall, resembling the jetting phenomenon in axisysmmetry.
Original languageEnglish
Pages (from-to)254501-1-254501-4
Number of pages4
JournalPhysical review letters
Volume98
Issue number25
DOIs
Publication statusPublished - 22 Jun 2007

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