MULTIPHOTON SPECTROSCOFY OF DISSOCIATIVE STATES IN $Cs_{2}$
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Date
1978
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Ohio State University
Abstract
Recently it has been possible to investigate dissociative molecular potentials in the heavy alkalis using multiphoton hybrid $^resonances^{1,2}$ In this process, a coincidence in energy of a molecular transition to a dissociative state with an atomic transition out of the dissociation product state leads to creation of high-lying Rydberg states, which art subsequently detected. We have expanded the applicability of this technique by employing two synchronized dye lasers, one of which is tuned across the molecular transition while the second excites an atomic resonance, thus monitoring the population of a selected dissociation product. An optical delay line allows adjustment of the temporal separation of the two 4 nsec pulses; typical delays of 1-10 nsec preclude collisional mixing of the product state. We will consider the analysis of this type of experiment and its particular application to the study of dissociative states in $Cs_{2}$. We will present the results of observations of continuous absorption in the region 5400 {\AA} - 6000 {\AA} through dissociative channels leading to the formation of $Cs (5^{2}D_{3/2})$ and $Cs(5^{2}D_{5/2})$ product atoms.
Description
$^{1}$ C. B. Collins, B. W. Johnson, M. Y. Mirza, D. Popescu, and Lovitzu Popescu, Phys. Rev. A10, 813 (1974). $^{2}$ C. B. Collins, S. M. Curry, B. W. Johnson, M. Y. Mirza, M. A. Chellehmalzadeh, and J. A. Anderson, D. Popescu, and Iovitzu Popescu, Phys. Rev. 14, 1662 (1976).""
Author Institution: Department of Physics, University of Texas at Dallas
Author Institution: Department of Physics, University of Texas at Dallas