High-resolution analysis of the ${\nu }_3$ band of radiocarbon methane ${}^{14}C{H}_4$

Abstract

We present the first high-resolution measurements and rotational analysis of the fundamental asymmetric stretching vibrational band ${\nu }_3(F_2)$ of radiocarbon methane. A spectrometer consisting of a mid-infrared continuous-wave optical parametric oscillator and a cantilever-enhanced photoacoustic detector was employed to determine the wavenumbers of 43 rovibrational lines. A spectroscopic model could reproduce all the observed transition wavenumbers within the accuracy of the experiment. Our work contributes to the development of radiocarbon methane detectors based on laser spectroscopy.

References in corpus (2)

• Radiocarbon Dioxide detection based on Cavity Ring-Down Spectroscopy and a Quantum Cascade Laser
• Broadband photoacoustic spectroscopy of ${}^{14}{\text{CH}}_4$ with a high-power mid-infrared optical frequency comb

Cited by in corpus (1)

• Infrared spectroscopy of radioactive hydrogen chloride H${}^{36}$Cl