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Molecules in Intense Laser Fields

Dixit, S. N. and McKoy, V. (1990) Molecules in Intense Laser Fields. In: Atoms in Strong Fields. NATO ASI Series B, Physics. No.212. Springer , New York, NY, pp. 509-512. ISBN 978-1-4757-9336-9.

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Recent advances in tunable laser sources have stimulated a great deal of interest in the study of intense field-matter interaction physics. Whenever a molecule interacts with an intense radiation field, it can absorb multiple photons from the field and make a transition either to an excited state (excitation) or into the continuum (ionization). If the energy of an integral number of photons equals the energy difference between the initial and an excited state, the multiphoton process becomes resonant and its probability is greatly enhanced. The observation of such resonant enhanced processes requires considerably less intensity than that required for non-resonant processes. Several researchers have taken advantage of this resonance enhancement to study various aspects of resonant enhanced multiphoton ionization (REMPI) processes in molecules. Measurement of ionic and photoelectron spectra have illustrated features such as non-Franck-Condon effects in ionic vibrational branching ratios due to autoionization, shape resonances and Cooper minima, non-atomic effects in ionization of Rydberg states and competition between rotational and vibrational autoionization.

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Additional Information:© 1990 Springer. Work done by S. N. Dixit was performed under the auspices of the U.S. Department of Energy at Lawrence Livermore National Laboratory under contract W-7405-Eng-48. Work done by V. McKay was supported by grants from the National Science Foundation (CHE-8521291), the Air Force Office of Scientific Research (Contract No. 87-0039), and the Office of Health and Environmental Research, U. S. Department of Energy (DE-FG03-87ER60513).
Funding AgencyGrant Number
Department of Energy (DOE)W-7405-ENG-48
Air Force Office of Scientific Research (AFOSR)87-0039
Department of Energy (DOE)DE-FG03-87ER60513
Series Name:NATO ASI Series B, Physics
Issue or Number:212
Record Number:CaltechAUTHORS:20151120-141428672
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:62299
Deposited By: Ruth Sustaita
Deposited On:23 Nov 2015 19:24
Last Modified:10 Nov 2021 23:00

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