Optogalvanic OH (A ← X) spectrum

A pulsed, tunable dye-laser initiates an optogalvanic spectrum of OH between 3074 and 3098Å. The OH is in a hollow cathode discharge that originates from a mixture of Ne and ⩽0.6% H 2O. Data analysis indicates that the ground ( X) electronic state of OH has a rotational temperature of ≈250–300 K. Th...

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Bibliographic Details
Published inJournal of quantitative spectroscopy & radiative transfer Vol. 39; no. 4; pp. 339 - 340
Main Authors Deshmukh, Subhash, Lee, Seong-Poong, Rothe, Erhard W., Reck, G.P.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.04.1988
New York, NY Elsevier
Subjects
Atomic and molecular physics
Exact sciences and technology
Molecular properties and interactions with photons
Molecular spectra
Physics
Ultraviolet spectra
Hollow cathode
Diatomic molecule
Inorganic free radical
Rotational temperature
Electronic transition
Experimental study
Near ultraviolet spectrometry
Optogalvanic spectrometry
Electric discharge
Hydroxyl
Absorption spectrum
Inorganic compound
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Summary:A pulsed, tunable dye-laser initiates an optogalvanic spectrum of OH between 3074 and 3098Å. The OH is in a hollow cathode discharge that originates from a mixture of Ne and ⩽0.6% H 2O. Data analysis indicates that the ground ( X) electronic state of OH has a rotational temperature of ≈250–300 K. This method appears to be a good diagnostic for the X state in discharges.
ISSN:0022-4073
1879-1352
DOI:10.1016/0022-4073(88)90010-6