Andrei Tokmakoff’s spectroscopic research has advanced the understanding of some key properties of water and the complex, critical role it plays in biological systems. He generates the world’s shortest infrared light pulses with ultrafast vibrational spectroscopy to probe molecular bonds. His research interests include molecular dynamics and chemical reactions in solution, molecular biophysics, and the development of experimental methods to study short-lived structure and molecular dynamics in liquids, solids and biological systems. His work also spans the study of water, protein-water interactions, and the dynamics of protein folding and binding. Tokmakoff’s many honors include the American Physical Society’s Ernest K. Plyler Prize for Molecular Spectroscopy and Dynamics.