Rotational relaxation studies of HF using ir double resonance

Autor:	J. J. Hinchen, R. H. Hobbs
Rok vydání:	1976
Předmět:	education.field_of_study Chemistry Population Analytical chemistry General Physics and Astronomy Resonance Rotational temperature Rate equation Laser law.invention Wavelength Orders of magnitude (time) law Relaxation (physics) Physical and Theoretical Chemistry Atomic physics education
Zdroj:	The Journal of Chemical Physics. 65:2732-2739
ISSN:	1089-7690 0021-9606
DOI:	10.1063/1.433417
Popis:	Rotational relaxation effects in HF were observed with double resonance ir experiments. Two single wavelength lasers were employed: a pulsed laser was used to pump a population to a particular vibrational–rotational level, and a stable cw laser was used as an absorption 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 vary with ΔJ. The data for rotational relaxation were compared with a rate equation model and rate constants for individual relaxation steps were obtained.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b864fd9bda51ddeac34b3ea9e63e479b https://doi.org/10.1063/1.433417 Zobrazit plný text záznamu