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Coherent Optical Spectroscopy of Molecules Undergoing Resonance Scattering and Radiationless Transitions: The Right-Angle Photon Echo

Zewail, A. H. (1977) Coherent Optical Spectroscopy of Molecules Undergoing Resonance Scattering and Radiationless Transitions: The Right-Angle Photon Echo. In: Laser Spectroscopy III. Springer Series in Optical Sciences. No.7. Springer-Verlag , Berlin Heidelberg, pp. 268-278. ISBN 978-3-662-13485-6.

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Before lasers were brought to the laboratories of chemists and physicists, molecular relaxations were identified using broad band chaotic light excitation. Knowledge of the radiative decay from the photon counting rate and the quantum yield gives information about one of the most fundamental processes in chemical dynamics; radiationless transitions. From the last two decades much is known about these processes, which simply result in a change of molecular electronic state without absorption or emission of photons. and encompass a wide class of phenomena such as autoionization in atoms, predissociation, molecular electronic relaxation and energy transport in condensed media. What is not known, at least experimentally, can be outlined with the following questions: (1)Do radiationless transitions depend on the nature of the exciting photon field? (2)What is the exact nature of the state we excite? (3)What is the influence of the ensemble optical coherence on the evolution of nonradiative processes? (4)Is there a threshold for an “ergodic” behavior in large molecules?

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Additional Information:© 1977 Springer-Verlag Berlin Heidelberg. Professor Willis Lamb has discussed the contents of this paper with me in great detail. I am very grateful to him and to Professor N. Bloembergen for their interest in this work and for very fruitful and stimulating discussions. I also wish to thank Professor J. Jortner for the careful reading of the manuscript and for valuable suggestions.
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Arthur Amos Noyes Laboratory of Chemical Physics5634
Series Name:Springer Series in Optical Sciences
Issue or Number:7
Record Number:CaltechAUTHORS:20161005-085506270
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:70863
Deposited By: Ruth Sustaita
Deposited On:05 Oct 2016 16:42
Last Modified:11 Nov 2021 04:36

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