Temperature dependence of intensities and widths of N<sub>2</sub>-broadened lines in the 15 μm CO<sub>2</sub> band from tunable laser measurements期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Temperature dependence of intensities and widths of N₂-broadened lines in the 15 μm CO₂ band from tunable laser measurements

Authors:	W G Planet G L Tettemer J S Knoll

Institution:	National Oceanic and Atmospheric Administration, National Environmental Satellite Service, Washington, DC 20233, U.S.A.

Abstract:	Intensities and nitrogen-broadened widths of several low-J lines in the Q-branch of the 15 μm band of CO₂ have been determined over the temperature range 200–300 K. Measurements were made with a tunable infra-red diode laser spectrometer having a spectral resolution 10^-4 cm^-1. Measured intensities are uniformly about 7% lower than available calculations which were based on previous measurements of band intensity. Measured line widths are higher than available calculations and generally followed the relation b_L⁰(T)=b_L⁰(T₀)(T₀\|T)ⁿ with n = 0.74 (standard deviation 0.08).

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