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Optogalvanic Spectroscopy in a Microwave-Induced Active Nitrogen Plasma

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Optogalvanic spectra have been obtained for a microwave-induced active nitrogen plasma. The spectra originated from laser-excited transitions belonging to the second positive system of nitrogen. As the ultraviolet (UV) laser wavelength was scanned through the regions of interest, the laser-induced ionization signal was monitored. A laboratory-constructed etalon system of very low finesse was used to provide an interferometric wavelength reference. Calibration of the laser wavelength allowed the accurate identification of a series of selected nitrogen transitions.

Keywords: Active nitrogen; Laser-induced ionization; Optogalvanic spectroscopy

Document Type: Research Article


Affiliations: 1: Chemistry Division, Research Department, Naval Weapons Center, China Lake, California 93555 2: Department of Chemistry, Oregon State University, Corvallis, Oregon 97331

Publication date: August 1, 1988

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