Zewail, Ahmed H. (2006) 4D ultrafast electron diffraction, crystallography, and microscopy. Annual Review of Physical Chemistry, 57 . pp. 65-103. ISSN 0066-426X. doi:10.1146/annurev.physchem.57.032905.104748. https://resolver.caltech.edu/CaltechAUTHORS:ZEWarpc06
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Abstract
In this review, we highlight the progress made in the development of 4D ultrafast electron diffraction (UED), crystallography (UEC), and microscopy (UEM) with a focus on concepts, methodologies, and prototypical applications. The joint atomic-scale resolutions in space and time, and sensitivity reached, make it possible to determine complex transient structures and assemblies in different phases. These applications include studies of isolated chemical reactions (molecular beams), interfaces, surfaces and nanocrystals, self-assembly, and 2D crystalline fatty-acid bilayers. In 4D UEM, we are now able, using timed, single-electron packets, to image nano-to-micro scale structures of materials and biological cells. Future applications of these methods are foreseen across areas of physics, chemistry, and biology.
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| Additional Information: | © 2006 by Annual Reviews. Reprinted, with permission, from the Annual Review of Physical Chemistry, Volume 57 copyright 2006 by Annual Reviews, www.annualreviews.org This paper is based on a series of lectures (Cavendish's Scott Lectures) I gave in Cambridge, UK, in the spring of 2005. We gratefully acknowledge the generous support by the National Science Foundation for building the new generations of UED and UEC, and Caltech for some of the initial help in building UEM. Partial support was provided by the Air Force Office of Scientific Research for studies in UED. I thank all members of the "diffraction group," both present and past, and whose efforts, expressed in the publications cited, made the story told here possible; some parts are adapted from the original references. Originally, the vision for this new field met very noticeable resistance, but it was their dedication and hard work that made us sail through. For this review, I especially thank Spencer Baskin and Dmitry Shorokhov for their thorough reading of the manuscript and helpful comments, Jerry (Ding-Shyue) Yang for his help in the preparation of the figures, and De Ann Lewis for typing the manuscript uninterruptedly and late after work hours. Finally, I am grateful for the timely support granted by the Gordon and Betty Moore Foundation for the UST Center devoted to the new horizons of ultrafast microscopy in physics, chemistry, and biology. | ||||||||||||
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| Subject Keywords: | structural dynamics, ultrafast science, molecular imaging, biological imaging | ||||||||||||
| DOI: | 10.1146/annurev.physchem.57.032905.104748 | ||||||||||||
| Record Number: | CaltechAUTHORS:ZEWarpc06 | ||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:ZEWarpc06 | ||||||||||||
| Official Citation: | 4D ULTRAFAST ELECTRON DIFFRACTION, CRYSTALLOGRAPHY, AND MICROSCOPY Ahmed H. Zewail Annual Review of Physical Chemistry, Vol. 57: 65 -103 (Volume publication date May 2006) | ||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||
| ID Code: | 7268 | ||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||
| Deposited By: | Lindsay Cleary | ||||||||||||
| Deposited On: | 25 Jan 2007 | ||||||||||||
| Last Modified: | 01 Jun 2023 23:33 |
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