Dr. Finn is a recognized expert in plasma physics as applied to magnetic fusion devices as well as solar and astrophysical plasmas and nonneutral plasmas. He worked at Los Alamos National Laboratory (LANL) for 23 years, and at the University of Maryland and the Naval Research Laboratory (NRL) before that. He has worked in the magnetohydrodynamic (MHD) stability and nonlinear behavior of toroidal devices, such as tokamaks, reversed field pinches and spheromaks, and in the basic theory of magnetic reconnection in laboratory, solar and astrophysical plasmas. John has over 150 publications.