Barry C. Walker

Barry C. Walker is a Professor in the Department of Physics & Astronomy at the University of Delaware, affiliated with the College of Arts & Sciences. His research focuses on ultrafast and high-intensity laser interactions with atomic and molecular systems, combining experimental and theoretical approaches to explore semi-classical and quantum dynamics. He holds a B.A. in Chemistry and Physics from Point Loma Nazarene University, followed by a Ph.D. in Physics from Stony Brook University and postdoctoral research at the University of California San Diego and Brookhaven National Lab.

His work addresses advanced laser technologies, such as attosecond X-ray pulse generation and relativistic photoelectron spectroscopy, with applications in 21st-century X-ray sources and high-power laser systems. Key contributions include studies on molecular ionization pathways, Stark shifts in strong fields, and dynamics of highly charged ions under extreme conditions.

Publications span topics like carbon monoxide ionization, polarization effects in bound states, and ultrastrong-field rescattering physics. His research emphasizes precision measurements of high-energy photoelectrons and radiation dynamics, with experimental setups including capillary discharge plasma waveguides and MeV spectrometers.