Assignment of the HCOOH CW-submillimeter laser
Abstract
Twenty one laser lines of the 250-1000 GHz range have been assigned in the v6 and v8 excited states of the H 12COOH molecule. The microwave study of these two states has allowed us to determine the molecular constants and to calculate the energy levels up to J = 50. The values of the energy levels of the ground state are well known and allow the frequency calculation of infrared rovibrational transitions near the 9.6-10.6 μm region and the comparison with the frequencies of the CO 2 laser lines. A microwave infrared double-resonance experiment has also been performed to confirm assignment based on the calculation of the energy levels. The value of the two band centers has been determined.
- Publication:
-
Optics Communications
- Pub Date:
- January 1979
- DOI:
- 10.1016/0030-4018(79)90181-0
- Bibcode:
- 1979OptCo..28..111D
- Keywords:
-
- Continuous Wave Lasers;
- Emission Spectra;
- Formic Acid;
- Infrared Lasers;
- Laser Pumping;
- Molecular Energy Levels;
- Submillimeter Waves;
- Carbon Dioxide Lasers;
- Frequency Assignment;
- Hydrogen Isotopes;
- Infrared Spectra;
- Microwave Spectra;
- Molecular Excitation;
- Optical Transition;
- Vibrational Spectra;
- Lasers and Masers