Document Detail


Pressure broadening and fine-structure-dependent predissociation in oxygen B 3sigma(u)-, v = 0.
MedLine Citation:
PMID:  16375539     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Both laser-induced fluorescence and cavity ring-down spectral observations were made in the Schumann-Runge band system of oxygen, using a novel-type ultranarrow deep-UV pulsed laser source. From measurements on the very weak (0,0) band pressure broadening, pressure shift, and predissociation line-broadening parameters were determined for the B 3sigma(u)-, v = 0,F(i) fine-structure components for various rotational levels in O2. The information content from these studies was combined with that of entirely independent measurements probing the much stronger (0,10), (0,19), and (0,20) Schumann-Runge bands involving preparation of vibrationally excited O2 molecules via photolysis of ozone. The investigations result in a consistent set of predissociation widths for the B 3sigma(u)-, v = 0 state of oxygen.
Authors:
Sandro Hannemann; GuoRong Wu; Eric-Jan van Duijn; Wim Ubachs; Philip C Cosby
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of chemical physics     Volume:  123     ISSN:  0021-9606     ISO Abbreviation:  J Chem Phys     Publication Date:  2005 Nov 
Date Detail:
Created Date:  2005-12-26     Completed Date:  2007-07-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375360     Medline TA:  J Chem Phys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  174318     Citation Subset:  -    
Affiliation:
Laser Centre, Vrije Universiteit, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands. sandro@nat.vu.nl
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