Working with Lafayette students, I have studied a number of aspects of the growth of dendritic crystals. We have sought to understand the fundamental physics that underlies the growth of these non-faceted crystals, and also to understand how those physical processes interact to produce the beautiful patterns we observe both in the laboratory and in nature.
Starting in 2003, I joined with Prof. David Hogenboom to design and construct an optical imaging system to be used in conjunction with his volumetric studies of phase equilibria in hydrated salts at pressures ranging from from 0.1 to 400 MPa. These substances are believed to be an important constituent of Europa, one of the moons of Jupiter. An important goal of this work is to provide volumetric data and high-pressure phase diagrams that can be helpful for understanding the nature of Europa's ocean.
We have investigated the motion of an air/water interface as water invades a model porous medium. The static interface shapes can be described as self-affine fractals. The dynamics involve collective "jumps", or "avalanches", and can be studied with ideas gained from the study of self-organized criticality.
Starting in 2001, I worked with Profs. Arthur Kney and Javad Tavakoli to study the behavior of an ion-exchange water purification system in the presence of an applied magnetic field.
Associate Professor of Physics
Department of Physics
Easton, PA 18042-1782
This page is occasionally maintained by Andrew Dougherty