Experimental verification of line- and band-shape asymmetry in the Schumann–Runge system of O2 | Zendy

Masaru Kono | Zendy; B. R. Lewis | Zendy; K. G. H. Baldwin | Zendy; S. T. Gibson | Zendy

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Experimental verification of line- and band-shape asymmetry in the Schumann–Runge system of O2

Author(s) -

Masaru Kono,

B. R. Lewis,

K. G. H. Baldwin,

S. T. Gibson

Publication year - 2003

Publication title -

the journal of chemical physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.071

H-Index - 357

eISSN - 1089-7690

pISSN - 0021-9606

DOI - 10.1063/1.1574512

Subject(s) - asymmetry , line (geometry) , interference (communication) , physics , atomic physics , resolution (logic) , optics , laser , cross section (physics) , line width , channel (broadcasting) , quantum mechanics , geometry , mathematics , artificial intelligence , computer science , electrical engineering , engineering

High-resolution, laser-based photoabsorption cross-section measurements in the weakly absorbing windows between the (11,0) and (16,0) Schumann–Runge bands of O2 have been performed at liquid-nitrogen temperature and the results compared with corresponding coupled-channel Schrodinger-equation (CSE) and line-by-line model calculations. While the symmetric-line- shape-based line-by-line model cross sections differ significantly from experiment, the excellent agreement found between the CSE and experimental window cross sections serves to confirm clearly for the first time the CSE-model predictions of band shape asymmetry and quantum-mechanical interference effects, especially in the (11,0)–(14,0) band region.

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