Air‐ and oxygen‐broadening coefficients for the O 2  rotational line at 60.46 cm −1 | Zendy

Jennings D. A. | Zendy; Evenson K. M. | Zendy; Vanek M. D. | Zendy; Nolt I. G. | Zendy; Radostitz J. V. | Zendy; Chance K. V. | Zendy

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Air‐ and oxygen‐broadening coefficients for the O 2 rotational line at 60.46 cm −1

Author(s) -

Jennings D. A.,

Evenson K. M.,

Vanek M. D.,

Nolt I. G.,

Radostitz J. V.,

Chance K. V.

Publication year - 1987

Publication title -

geophysical research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.007

H-Index - 273

eISSN - 1944-8007

pISSN - 0094-8276

DOI - 10.1029/gl014i007p00722

Subject(s) - oxygen , line (geometry) , spectrometer , atomic physics , infrared , analytical chemistry (journal) , terahertz radiation , physics , materials science , optics , chemistry , geometry , mathematics , quantum mechanics , chromatography

Using an NBS laser‐based tunable far infrared spectrometer, we have measured the air‐ and oxygen‐broadening coefficients for the J = 10←10, N = 11←9 O 2 rotational transition at 60.46 cm −1 (1.812 THz). The air‐broadening coefficient is 5.04 ± 0.38 × 10 −7 cm −1 Pa −1 (0.0511±0.0039 cm −1 atm −1 ) (HWHM) at 245±6 K; the oxygen‐broadening coefficient is 4.92±0.47 × 10 −7 cm −1 Pa −1 (0.0499±0.0048 cm −1 atm −1 ) (HWHM) at 259±2 K. These direct experimental measurements of the air‐broadening coefficient should improve the accuracy of retrieval calculations for far infrared stratospheric balloon experiments which use O 2 rotational lines to calibrate the viewing geometry.

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