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Title: Kinetic studies following state-selective laser excitation. Progress report, May 1, 1991--April 29, 1992

Abstract

We have made measurements of state-to-state deactivation cross sections and radiative lifetimes for Xe*(6p,6p{prime},7p) and Kr*(5p) states in xenon and krypton buffer gases. These results are relevant to kinetic models and both excimer lasers and the infrared xenon laser; and they are a significant improvement in the precision of the known radiative lifetimes. This type of experiment can now be compared with recent calculations of state-to-state collisional relaxation in rare-gases by Hickman, Huestis, and Saxon. We have also made significant progress in the study of the electronic spectra of small molecules of the rare gases. Spectra have been obtained for Xe{sub 2}, Xe{sub 3}, Xe{sub 4}, and larger clusters. As guidance for the larger clusters of the rare gases we have obtained the first multiphoton spectra for excitons in condensed xenon. In collaboration with research on the multiphoton spectra of the rare gases, we have continued experiments using synchrotron radiation in collaboration with the University of Hamburg. In experiments there we have observed excitation and fluorescence spectra for single xenon atoms at the surface, within the second layer, and within the bulk of large argon clusters.

Authors:
Publication Date:
Research Org.:
Texas Univ., Austin, TX (United States). Dept. of Physics
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10122098
Report Number(s):
DOE/ER/13191-12
ON: DE92007705
DOE Contract Number:  
FG05-84ER13191
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Jan 1992
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; XENON; FLUORESCENCE SPECTROSCOPY; KRYPTON; PROGRESS REPORT; EXCITATION; CROSS SECTIONS; LASER RADIATION; LIFETIME; MULTI-PHOTON PROCESSES; CHEMICAL REACTION KINETICS; EXCITED STATES; PHOTOIONIZATION; 664200; SPECTRA OF ATOMS AND MOLECULES AND THEIR INTERACTIONS WITH PHOTONS

Citation Formats

Keto, J W. Kinetic studies following state-selective laser excitation. Progress report, May 1, 1991--April 29, 1992. United States: N. p., 1992. Web. doi:10.2172/10122098.
Keto, J W. Kinetic studies following state-selective laser excitation. Progress report, May 1, 1991--April 29, 1992. United States. https://doi.org/10.2172/10122098
Keto, J W. 1992. "Kinetic studies following state-selective laser excitation. Progress report, May 1, 1991--April 29, 1992". United States. https://doi.org/10.2172/10122098. https://www.osti.gov/servlets/purl/10122098.
@article{osti_10122098,
title = {Kinetic studies following state-selective laser excitation. Progress report, May 1, 1991--April 29, 1992},
author = {Keto, J W},
abstractNote = {We have made measurements of state-to-state deactivation cross sections and radiative lifetimes for Xe*(6p,6p{prime},7p) and Kr*(5p) states in xenon and krypton buffer gases. These results are relevant to kinetic models and both excimer lasers and the infrared xenon laser; and they are a significant improvement in the precision of the known radiative lifetimes. This type of experiment can now be compared with recent calculations of state-to-state collisional relaxation in rare-gases by Hickman, Huestis, and Saxon. We have also made significant progress in the study of the electronic spectra of small molecules of the rare gases. Spectra have been obtained for Xe{sub 2}, Xe{sub 3}, Xe{sub 4}, and larger clusters. As guidance for the larger clusters of the rare gases we have obtained the first multiphoton spectra for excitons in condensed xenon. In collaboration with research on the multiphoton spectra of the rare gases, we have continued experiments using synchrotron radiation in collaboration with the University of Hamburg. In experiments there we have observed excitation and fluorescence spectra for single xenon atoms at the surface, within the second layer, and within the bulk of large argon clusters.},
doi = {10.2172/10122098},
url = {https://www.osti.gov/biblio/10122098}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1992},
month = {Wed Jan 01 00:00:00 EST 1992}
}