High-resolution ro-vibrational and rotational spectroscopy of HC<sub>3</sub>O<sup>+</sup>
Oskar Asvany, Sven Thorwirth, Philipp C. Schmid, Thomas Salomon, Stephan Śchlemmer
Abstract
. Surprisingly, also two hot bands were detected despite the cryogenic operation temperature. Based on the novel action spectroscopy approach, a new double-resonance rotational measurement scheme was established, consisting of rotational excitation followed by vibrational excitation. Seven rotational transitions were observed between 89 and 180 GHz. Highly accurate spectroscopic parameters were extracted from a fit using all available data. In addition, a pulsed laser system has been employed to record a low resolution vibrational spectrum, in order to demonstrate the compatibility of such lasers with the LOS method.
Topics & Concepts
SpectroscopyHot bandAtomic physicsExcitationIonSpectral lineChemistryLaserRotational–vibrational spectroscopyRotational spectroscopyAnalytical Chemistry (journal)Molecular vibrationExcited stateMoleculePhysicsOpticsOrganic chemistryQuantum mechanicsAstronomyChromatographySpectroscopy and Laser ApplicationsAtmospheric Ozone and ClimateMolecular Spectroscopy and Structure