Accession Number:

ADA012545

Title:

Rotational Relaxation Studies of HF Using Double I.R. Resonance.

Descriptive Note:

Final rept.,

Corporate Author:

UNITED TECHNOLOGIES RESEARCH CENTER EAST HARTFORD CONN

Personal Author(s):

Report Date:

1975-07-01

Pagination or Media Count:

41.0

Abstract:

Rotational relaxation effects in HF were observed with double resonance IR experiments that employed two single wavelength lasers. A pulsed laser is used to pump the population to a particular V,J level, and the absorption of stable cw laser radiation is used as a probe to determine the loss or arrival of population in specific J levels. Results are described for both the rotational transfer rates and the temporal behavior of the population distribution over rotational levels after the population was placed in a single level. Rotational transfer rates were found to be three orders of magnitude faster than V-T relaxation and to depend on Delta J. Also the effects of foreign gases were investigated.

Subject Categories:

  • Atomic and Molecular Physics and Spectroscopy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE