Article ID Journal Published Year Pages File Type
9599023 Journal of Quantitative Spectroscopy and Radiative Transfer 2005 11 Pages PDF
Abstract
Overtone absorption lines of 12C16O2 have been examined by using a tunable diode laser (TDL) spectrometer in the region around 12770cm-1. The spectrometer sources are commercially available double heterostructure InGaAlAs TDLs operating in the “free-running” mode, which allowed the detection of the line positions within 0.01cm-1. The observed carbon dioxide absorption lines belong to the ν1+5ν3 ro-vibrational band with rotational quantum number J up to 48. The minimum absorbance detected by the spectrometer (≃5×10-6) permitted to observe the weakest lines having the absorption cross section of the order of ≃1×10-27cm2/molecule.
Related Topics
Physical Sciences and Engineering Chemistry Spectroscopy
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