Physics | Faculty & Staff

Professorial Lecturer

Assistant Professor

Gregg Harry works to detect gravitational waves from supernovas, neutron stars, pulsars, and possibly the Big Bang.  In this way, he is testing Einstein’s theory of gravity against Newton’s. An astrophysicist by trade, Harry works on the National Sci... [More]

Professorial Lecturer

Associate Professor

Professor Johnson is a theoretical and computational physicist investigating questions across a number of fields, including topics in quantum computing science, ultracold atomic physics, superconducting qubit physics, and quantum field theory. He is ... [More]

Associate Professor

Teresa Larkin is an Associate Professor of Physics Education in the Department of Physics. She also serves as Faculty Liaison to the Pre-engineering Program at American University.Dr. Larkin received her BS and MS degrees in Engineering Physics from ... [More]

Associate Dean of Research and Department Chair, Computer Science

Assistant Professor

Jessica Uscinski recently joined the Physics Department at American University as an Assistant Professor in Fall 2008. She received her PhD in Theoretical Physics from the University of Arizona in 2008. Her research primarily involves investigating t... [More]

Professor Emeritus

Associate Professor Emeritus

Prof. Gray received his PhD in Physics from Pennsylvania State University in 1968, after which he was a Postdoctoral Fellow at the University of Toronto in 1968-1969. In 1969-1972, he was an Assistant Professor of Physics at the Oregon Graduate Cente... [More]

Adjunct Assistant Professor

Professor Emeritus

Physicist in Residence

Research Assistant Professor

Adjunct Professorial Lecturer

Professor Emeritus

Adjunct Instructor

Professor Emeritus

Romeo Segnan came to American University in 1967, where he pursued his career in physics. In 1987 he was appointed chair of the physics department, which he held for the next ten years. During the years of teaching and research, Segnan spent differen... [More]

Professor Emeritus

Optical and Laser Engineer

Senior Administrative Assistant

Assistant Director-D.C. Space Grant

Lab Director & Research Specialist