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  Home > JCE Print > Journal of Chemical Education > Issues > 2001  > June  >
Nobel Prize Report
Freezing Atoms in Motion: Principles of Femtochemistry and Demonstration by Laser Stroboscopy
J. Spencer Baskin and Ahmed H. Zewail
Arthur Amos Noyes Laboratory of Chemical Physics M/C 127-72, California Institute of Technology, Pasadena, CA 91125
Cover
June 2001
Vol. 78 No. 6
p. 737
Abstract
The motion of atoms in molecules and in the course of reactions occurs on infinitesimal length and time scales, down to the angstrom (0.1 nm or 10-8 cm) length and femtosecond (10-15 s) time scales. To observe the behavior of atoms in motion, which is fundamental to chemical and biological transformations of molecular structures, femtosecond "stop-motion photography" with lasers is the methodology employed. This contribution highlights the basic concepts involved in the methodology and in the development of the field of femtochemistry. The concepts are described with the aid of a laser demonstration designed at Caltech and used elsewhere as an exhibit.

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More Information
*  Citation
 Baskin, J. Spencer; Zewail, Ahmed H. J. Chem. Educ. 2001 78 737.
*  Keywords
 Femtobiology; Femtochemistry; Kinetics; Lasers / Laser Spectroscopy; Physical Chemistry
*  History
 Created:
Last Updated:		 May 8, 2001
August 31, 2005
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