A
Ahmed H. Zewail
Researcher at California Institute of Technology
Publications - 615
Citations - 43313
Ahmed H. Zewail is an academic researcher from California Institute of Technology. The author has contributed to research in topics: Femtosecond & Excited state. The author has an hindex of 106, co-authored 615 publications receiving 41204 citations. Previous affiliations of Ahmed H. Zewail include University of California, Berkeley & Lawrence Berkeley National Laboratory.
Papers
More filters
Journal ArticleDOI
Femtochemistry: Atomic-Scale Dynamics of the Chemical Bond†
TL;DR: The field of femtochemistry has been studied from a personal perspective, encompassing our research at Caltech and focusing on the evolution of techniques, concepts, and new discoveries.
Journal ArticleDOI
Dynamics of water in biological recognition.
Samir Kumar Pal,Ahmed H. Zewail +1 more
TL;DR: Almost all biological macromoleculess proteins and DNAs are inactive in the absence of water, and the role of hydration in enzyme catalysis is well known and has recently been reviewed in a number of publications.
Journal ArticleDOI
Four-Dimensional Electron Microscopy
TL;DR: This Review highlights recent developments and inventions made by introducing the fourth dimension of time in electron microscopy, and presents the central concept involved, that of single-electron stroboscopic imaging, which discusses prototypical applications, which include the visualization of complex structures when unfolding on different length and time scales.
Journal ArticleDOI
Photon-induced near-field electron microscopy
TL;DR: The observation of the photon-induced near-field effect in ultrafast electron microscopy demonstrates the potential for many applications, including those of direct space-time imaging of localized fields at interfaces and visualization of phenomena related to photonics, plasmonics and nanostructures.
Journal ArticleDOI
Biological water at the protein surface: dynamical solvation probed directly with femtosecond resolution.
TL;DR: Results show that hydration at the surface is a dynamical process with two general types of trajectories, those that result from weak interactions with the selected surface site, giving rise to bulk-type solvation, and those that have a stronger interaction, enough to define a rigid water structure, with a solvation time of 38 ps, much slower than that of the bulk.