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L. C. CIOBOTARU1,*
In electronegative-electropositive gas mixtures plasma, at a total pressure varying in the range of ten to hundred Torr, was reported the appearance of a quasi-mochromatization effect of the emitted radiation. This radiation could be the result of the generating mechanisms at molecular level, which is the case of the excimer radiation but also at atomic level. Thus, in the last case, in (Ne+1%Ar/Xe+H2) gas mixtures plasma in a dielectric barrier discharge (DBD), this effect consists in the reduction of the discharge emission spectrum practice at one single, strong spectral line, namely = 585.3 nm. The present paper is concerned with the main characteristics comparative investigation of the principal reaction mechanisms involved in the quasi-monochromatization effect existence, namely the direct Harpoon reaction, in the case of the excimer radition, which appears as a result of the generation processes at molecular level and the resonant polar three-body reaction, as a result of the generation processes at atomic level. Also, the paper points out the role and the importance of the metastable electronegative atoms in the appearance of the monochromatization –effect at atomic level..
Monochromatization – effect, Direct Harpoon reaction, Resonant polar three-body reaction.
L. C. CIOBOTARU, Comparative investigation of monochromatization light effect at molecular/atomic level in electronegativeelectropositive gas mixtures plasma, Optoelectronics and Advanced Materials - Rapid Communications, 6, 5-6, May-June 2012, pp.668-672 (2012).
Submitted at: March 1, 2012
Accepted at: June 6, 2012
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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