Cavity ring-down spectroscopy of methane in hypersonic Laval expansions

E. Dudás (1) , Samir Kassi (2) , Solène Perot (1) , C. Charles (3) , L. Rutkowski (1) , R. Georges (1)

1 IPR - Institut de Physique de Rennes
2 LIPhy - Laboratoire Interdisciplinaire de Physique [Saint Martin d’Hères]
3 ANU - Australian National University

We report the study of the hot bands of methane in a vibrationally hot and rotationally cool environment. The near infrared transitions were measured usingcavity ring down spectroscopy in a molecular hypersonic expansion. © Optica Publishing Group 2022, © 2022 The Author(s)

Mots clés: Absorption spectroscopy; Band structure; Expansion; Infrared devices; Light measurement; Cavity ring down spectroscopies; Hot band; Infrared transition; Near Infrared; Near-infrared; Ringdown spectroscopy; Methane

Domaines: Physique [physics]

E. Dudás, Samir Kassi, Solène Perot, C. Charles, L. Rutkowski, et al.. Cavity ring-down spectroscopy of methane in hypersonic Laval expansions. CLEO: Science and Innovations, S and I 2022, May 2022, San Jose, United States. pp.SF4O.3. ⟨hal-03810600⟩