Faculté des sciences

Spectroscopic study of the ν1 band of SO2 using a continuous-wave DFB QCL at 9.1 µm

Joly, L. ; Zéninari, V. ; Parvitte, B. ; Weidmann, D. ; Courtois, D. ; Bonetti, Yargo ; Aellen, Thierry ; Beck, Mattias ; Faist, Jérôme ; Hofstetter, Daniel

In: Applied Physics B: Lasers and Optics, 2004, vol. 77, no. 6-7, p. 703-706

We report results of spectroscopic measurements with a continuous-wave distributed-feedback quantum-cascade laser (DFB QCL). Line intensities and self-broadening coefficients were measured in the ν1 band of SO2 between 1088 and 1090 cm-1. The self-broadening coefficients in this paper confirm the typical decrease of νself with increasing rotational... Plus

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    Summary
    We report results of spectroscopic measurements with a continuous-wave distributed-feedback quantum-cascade laser (DFB QCL). Line intensities and self-broadening coefficients were measured in the ν1 band of SO2 between 1088 and 1090 cm-1. The self-broadening coefficients in this paper confirm the typical decrease of νself with increasing rotational quantum number K’’a. The line intensities determined here are smaller than those in the HITRAN 2000 database. Several lines found in this study were not present in the database.