Botanical relaxation studies of hydrogen fluoride
Abstract
Laser double resonance experiments in HF were extended to probing levels as high as J=13 to define the processes of population transfer between rotational levels and transfer from vibration to rotation. In the first part of this report rotational transfer experiments are described and the results are compared with three different kinetic models. Using the criteria of transfer rates and signal shapes for evaluation, the Polyani-Woodall model was found to best describe the data. The second part of the report describes observations of direct transfer of vibrational (V=1) transfer to rotational levels J=10-13 of V=0. Very fast transfer by this route was measured but only a small fraction of the V=1 population was involved. Dilution of the HF sample by rare gases was found to enhance V-R transfer in accord with observations reported for rotational HF lasers.
- Publication:
-
Final Report United Technologies Research Center
- Pub Date:
- November 1982
- Bibcode:
- 1982utrc.rept.....H
- Keywords:
-
- Hf Lasers;
- Hydrofluoric Acid;
- Molecular Rotation;
- Chemical Lasers;
- Comparison;
- Evaluation;
- Kinetic Theory;
- Models;
- Molecular Theory;
- Spin Resonance;
- Standards;
- Atomic and Molecular Physics