Session Q8: Colloidal Phase Behavior
11:15 AM–2:15 PM, Wednesday, March 12, 2008
Morial Convention Center Room: RO6
Sponsoring Unit:
DFD
Chair: Jerzy Blawzdziewicz, Yale University
Abstract ID: BAPS.2008.MAR.Q8.12
Abstract: Q8.00012 : Observing liquid-gas nucleation in a colloid-polymer solution using digital holographic microscopy
1:27 PM–1:39 PM
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Abstract 
Authors:
Ryan McGorty
(Harvard University)
Vinothan N. Manoharan
(Harvard University)
We study liquid-gas nucleation in a colloid-polymer solution. Though the colloidal particles are too small to resolve, we are able to observe nucleating droplets due to the refractive index mismatch between the two fluid phases. By using digital holographic microscopy we are able to observe the three-dimensional structure of the nucleating phase. The experimental setup and algorithms for reconstructing the holography data will be discussed. We hope that our data will allow us to better understand nucleation kinetics and that analysis of the fluctuating droplets will provide us with the surface tension between the two phases.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2008.MAR.Q8.12