Observing the three-dimensional motion of colloids at an oil-water interface
ORAL
Abstract
Our experimental system allows us to place micron-sized colloids at a flat oil-water interface.~ Using digital holographic microscopy we track the motion of particles at the interface in all three dimensions.~ Of particular interest is the out-of-plane motion of an adsorbed particle.~ I will present data of such motion and what it reveals regarding the energy and length scales of a particle attached to an interface.~ Introducing a laser tweezer and customized colloids (such as core-shell particles) into our experiment allows us to further investigate this system.~
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