Rudolph, H. and McKoy, V. (1989) Cooper minima and rotationally resolved resonance enhanced multiphoton ionization spectroscopy. Journal of Chemical Physics, 91 (12). pp. 7995-7997. ISSN 0021-9606 http://resolver.caltech.edu/CaltechAUTHORS:20120530-145357158
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Abstract
We demonstrate that a Cooper minimum, close to threshold, in photoionization via an excited molecular Rydberg state can have a dramatic influence on the ionic rotational branching ratios. It is also shown that this behavior can be exploited to produce ions selectively in a specific rotational level. To illustrate this effect we present the results of ab initio calculations for (2+1′) resonance enhanced multiphoton ionization via the O_(11) (23.5) branch of the H ^2Σ^+(3d,4s) state of NO, where a Cooper minimum is found in l=3 of the kσ and kπ continua at photoelectron kinetic energies of 2.6 eV and 2.9 eV, respectively.
| Item Type: | Article | ||||||||||||
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| Additional Information: | © 1989 American Institute of Physics. Received 18 September 1989; accepted 13 October 1989. The authors acknowledge support from the National Science Foundation (Grant No. CHE-8521391), Air Force Office of Scientific Research (Contract No. 87-0039), and the Office of Health and Environmental Research of the US. Department of Energy (Grant No. DE-FG03-87ER60513). We also made use of resources of the San Diego SuperComputer Center, which is supported by the National Science Foundation. H.R. gratefully acknowledges support from the NATO Science Fellowship Program (Denmark). | ||||||||||||
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| Subject Keywords: | MULTI−PHOTON PROCESSES, RESONANCE, ENHANCEMENT, NITRIC OXIDE, PHOTOIONIZATION, AB INITIO CALCULATIONS, ROTATIONAL STATES, SPECTRAL RESOLUTION, RYDBERG STATES, BRANCHING RATIO | ||||||||||||
| Classification Code: | PACS: 33.80.Rv; 33.20.Sn | ||||||||||||
| Record Number: | CaltechAUTHORS:20120530-145357158 | ||||||||||||
| Persistent URL: | http://resolver.caltech.edu/CaltechAUTHORS:20120530-145357158 | ||||||||||||
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| Official Citation: | Cooper minima and rotationally resolved resonance enhanced multiphoton ionization spectroscopy H. Rudolph and V. McKoy J. Chem. Phys. 91, 7995 (1989); http://dx.doi.org/10.1063/1.457219 | ||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||
| ID Code: | 31725 | ||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||
| Deposited By: | Ruth Sustaita | ||||||||||||
| Deposited On: | 30 May 2012 22:18 | ||||||||||||
| Last Modified: | 26 Dec 2012 15:17 |
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