Dr. Paul Johns recently completed his PhD in Physical Chemistry at the University of Notre Dame and is currently employed as a postdoctoral researcher at the University of Notre Dame. His research focuses on the propagation of surface plasmon polaritons through gold nanostructures and how defects and discontinuities can disrupt or enhance this propagation. The research uses a pump-probe technique with a galvo-scanning mirror developed during his time in the Hartland Lab to interrogate the samples. To further understand the propagation, he models the structures using the finite element method program COMSOL Multiphysics®. Paul has taught in a variety of capacities: as an undergraduate and graduate TA, as Visiting Laboratory Instructor at Saint Francis University where he taught Physical Chemistry I Lab, General Chemistry II Lab, and Organic Chemistry I and II Lab, and as the primary instructor at the University of Notre Dame for a Physical Chemistry II course. Please click on a link above to learn more about his teaching or research.