Energy Transfer in A2 sigma OH. I. Rotational.
Abstract
A frequency doubled, tunable dye laser is used to excite individual v, N, J levels of the A-state of the OH molecule. The fluorescence emitted in the presence of known pressures of various fill gases has permitted the determination of collisionally-induced population changes, and hence state-to-state energy transfer rates. There are reported results on rotational energy transfer within v = 0, using six different initially pumped levels for nitrogen as a collision partner, and two each for hydrogen and argon. It is found that the rates are fast (14 per torr per microsecond for a typical total transfer rate with nitrogen), that a process having Delta N = Delta J occurs faster than one where Delta N not equal Delta J, and that multiquantum transfer rates are nearly as large as single quantum transfer rates. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1978
- Accession Number
- ADA051051
Entities
People
- David R. Crosley
- Russell K. Lengel
Organizations
- Ballistic Research Laboratory