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Title: Time-resolved postdischarge absolute silicon monoxide density measurement by resonant absorption spectroscopy in a nonthermal atmospheric plasma

In this study we present the technique of resonant absorption spectroscopy diagnostic developed to estimate the density of silicon monoxide (SiO) molecules during the postdischarge of an atmospheric dielectric barrier discharge plasma. The ultraviolet (0,0) rovibrational band of the SiO(A {sup 1}{pi}-X {sup 1}{sigma}{sup +}) electronic transition was investigated. Effective values of absorption coefficient and absorption cross section for the rotational transitions under consideration were calculated. The SiO concentration was estimated by comparison between experimental and computed spectra. The self-absorption in the probe reactor was taken into account in the computed spectra.
Authors:
; ;  [1] ;  [2]
  1. LEMA, UMR CNRS-CEA 6157, Universite Francois Rabelais de Tours, UFR Sciences and Techniques, Parc Grandmont, 37200 Tours (France)
  2. (France)
Publication Date:
OSTI Identifier:
20884792
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 100; Journal Issue: 9; Other Information: DOI: 10.1063/1.2372315; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABSORPTION SPECTROSCOPY; CROSS SECTIONS; DENSITY; DEPOSITION; DIELECTRIC MATERIALS; ELECTRIC DISCHARGES; PLASMA; PLASMA DENSITY; PLASMA DIAGNOSTICS; SELF-ABSORPTION; SILICON OXIDES; SPECTRA; TIME RESOLUTION; ULTRAVIOLET RADIATION