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Rotational branching ratios and photoelectron angular distributions in resonance enhanced multiphoton ionization of diatomic molecules

Wang, Kwanghsi and McKoy, V. (1991) Rotational branching ratios and photoelectron angular distributions in resonance enhanced multiphoton ionization of diatomic molecules. Journal of Chemical Physics, 95 (7). pp. 4977-4985. ISSN 0021-9606. https://resolver.caltech.edu/CaltechAUTHORS:20151028-114734233

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Abstract

In this paper we extend a previous formulation of molecular resonance enhanced multiphoton ionization (REMPI) photoelectron spectra to explicitly include multiplet‐specific final state wave functions and intermediate coupling schemes. The results of this formulation should be well suited and helpful in quantitative theoretical studies of rotationally resolved REMPI spectra in many diatomic molecules of interest. As an example, we use this formulation to study the rotational branching ratios and photoelectron angular distributions for (3+1) REMPI of NH via the 3 ^3Π Rydberg resonant state. The predicted anomalous rotational distributions are interpreted as arising from a Cooper minimum in the l=2 component of the kπ photoionization channel. A number of other results are obtained and discussed.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.461793DOIArticle
http://scitation.aip.org/content/aip/journal/jcp/95/7/10.1063/1.461793PublisherArticle
Additional Information:© 1991 American Institute of Physics. (Received 2 May 1991; accepted 17 June 1991) This work was supported by grants from the National Science Foundation (CHE-8521391), Air Force Office of Scientific Research (Contract No. 87-0039), and the Office of Health and Environmental Research of the U.S. Department of Energy (DE-FG03-87ER60513). We also acknowledge use of resources of the San Diego Supercomputer Center, which is supported by the National Science Foundation, and the resources of the JPL/Caltech CRAY X-MP/18 Supercomputer. K.W. thanks Dr. S. N. Dixit for the useful discussions in the early stage of this work and Dr. J. A. Stephens for the help in obtaining the NH wave functions.
Funders:
Funding AgencyGrant Number
NSFCHE-8521391
Air Force Office of Scientific Research (AFOSR)87-0039
Department of Energy (DOE)DE-FG03-87ER60513
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Caltech Arthur Amos Noyes Laboratory of Chemical Physics8435
Issue or Number:7
Record Number:CaltechAUTHORS:20151028-114734233
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20151028-114734233
Official Citation:Rotational branching ratios and photoelectron angular distributions in resonance enhanced multiphoton ionization of diatomic molecules Wang, Kwanghsi and McKoy, V., The Journal of Chemical Physics, 95, 4977-4985 (1991), DOI:http://dx.doi.org/10.1063/1.461793
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:61655
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:09 Nov 2015 22:28
Last Modified:03 Oct 2019 09:10

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