期刊
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
卷 152, 期 -, 页码 84-93出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jqsrt.2014.10.019
关键词
Ozone; CW-cavity ring down spectroscopy; Resonance coupling; Effective Hamiltonian model; Potential energy surface
资金
- ANR project IDEO (Isotopic and Dynamic effects in Excited Ozone) [FI-071215-01-01]
- LEFE ChAt CNRS program
- Laboratoire International Associe SAMIA (Spectroscopie d'Absorption des Molecules d'Interet Atmospherique) between CNRS (France) and RFBR (Russia)
- Tomsk State University Competitiveness Improvement Program
The present contribution is devoted to the analysis of three extremely weak A-type bands of O-16(3) recorded near 7686, 7739 and 7860 cm(-1) i.e. only a few % below the dissociation limit, D-0, at about 8560 cm(-1). They correspond to the most excited vibration-rotation states of ozone observed so far via high-resolution absorption spectroscopy. They were detected by high sensitivity CW-cavity ring down spectroscopy with a typical noise equivalent absorption, alpha(min), on the order of 2 x 10(-10) cm(-1) and modelled using the effective operator approach. The derived band centres and rotational constants show a very good agreement with recent theoretical predictions based on a new ab initio potential energy surface. (C) 2014 Elsevier Ltd. All rights reserved.
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