Professor Wen Li, Department of Chemistry, Wayne State University

Attosecond spectroscopy aims to probe electronic dynamics in real time within atoms, molecules, and materials. Over the past two decades, remarkable progress has brought this vision closer to reality. In this talk, I will highlight two recent advances from my group: (1) ultrafast imaging of electronic wave packets, capturing coherent electron motion with attosecond temporal resolution; and (2) a new phase-resolved attoclock technique that resolves a long-standing question in strong-field physics. I will also briefly discuss how three-dimensional momentum imaging can be leveraged to uncover novel phenomena in emerging materials, such as metal halide perovskite nanoparticles.