Physics Faculty and Staff

Please see below for Adjunct & Emeritus Faculty or Department Staff.

Chair

Philip Johnson Associate Professor and Department Chair, Physics CAS | Physics

I am a theoretical physicist whose research ranges from exploring the quantum world to studying emergent complexity in computational systems. I am dedicated to building a thriving, inclusive scient

  pjohnson@american.edu

  (202) 885-2761

Full-Time Faculty

Brian Beaudoin Hurst Senior Professorial Lecturer CAS | Physics

My research focuses on investigating the fundamental interactions between charged particles, electromagnetic radiation and materials. I am an experimental physicist particularly interested in systems

  bbeaudoin@american.edu

Anna Binion Professorial Lecturer CAS | Physics

Anna Binion has been teaching at American University since she finished her Ph.D. in Condensed Matter Physics at Penn State in 2022. She has focused particularly on teaching introductory classes and l

  binion@american.edu

Aaron Grocholski Senior Professorial Lecturer CAS | Physics

Aaron Grocholski is a Professorial Lecturer at American University focusing on teaching Introductory Astronomy, Astrophysics, and a complex problems class he developed called "Asteroid Apocalypse" whi

  grochols@american.edu

Silvina Guidoni Associate Professor CAS | Physics

Professor Guidoni studies bursts on the Sun that are so powerful they can shake our technological world, and she brings students along for the ride.And students don’t just watch, they participate. Stu

  guidoni@american.edu

  (202) 885-2728

Gregory Harry Professor CAS | Physics

My research is on gravitational waves, which were predicted by Einstein in his General Theory of Relativity and come from astronomical events like black holes, neutron stars, pulsars, and the Big Bang

  harry@american.edu

  (202) 885-3566

Nathan Harshman Professor CAS | Physics

OverviewNathan (Nate) Harshman is a mathematical and theoretical physicist specializing in the study of symmetry and topology in quantum systems. He has published over sixty articles and book c

  harshman@american.edu

  (202) 885-3479

Babak Kasmaei Professorial Lecturer CAS | Physics

I’m a theoretical physicist interested in high energy nuclear physics, subatomic particles, and quantum phenomena. I have studied the evolution and signatures of Quark-Gluon Plasma, which is an extrem

  kasmaei@american.edu

Johannes Ulf Lange Assistant Professor CAS | Physics

I am an astrophysicist studying cosmology and galaxies using large data sets and machine learning. My work addresses some of the most fundamental questions about our Universe: What are the properties

  jlange@american.edu

Teresa Larkin Associate Professor CAS | Physics

Teresa L. Larkin is an Associate Professor of Physics Education at American University and Director of the Dual-Degree Program in affiliation with Columbia University’s School of Engineering and Appli

  tlarkin@american.edu

  (202) 885-2766

Jessica Uscinski Hurst Senior Professorial Lecturer CAS | Physics

Jessica Uscinski is a Hurst Senior Professorial Lecturer in the Department of Physics at American University and serves as the department’s Laboratory Director. She teaches introductory and upper-leve

  uscinski@american.edu

  (202) 885-3505

Adjunct & Emeritus Faculty

Harold Geller Adjunct Assistant Professor CAS | Physics

Geller is Associate Professor Emeritus, George Mason University (GMU); Adjunct Professor, American University (AU); and, Solar System Ambassador, NASA Jet Propulsion Laboratory. Previous academic appo

  hgeller@american.edu

  (202) 885-2741

Joe Prendergast Adjunct Instructor CAS | Physics

Joe's work focuses on radio detection and analysis of cataclysmic variable stars, radio telescopes and mitigation of radio frequency interference, and Julia language development.

  prenderg@american.edu

Department Staff

Riya Ashby Senior Administrative Assistant CAS | Physics

The Department of Physics Senior Administrative Assistant since 2023, Riya Ashby handles all Physics administrative needs and enjoys participating in the exciting colloquia, parties, and community eve

  ashby@american.edu

  (202) 885-2741