Time- and space-resolved spectroscopy of electron transport in low-frequency discharge plasma in argon

T. Makabe, M. Nakaya

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The authors have observed the temporal and spatial profiles of optical emissions in low-frequency (100 kHz) discharge plasma at 1.0 Torr and 10 sccm in argon. Intermediate- and high-energy electron transport has been investigated by monitoring the emissions, Ar I (3p55p to 3p54s) and Ar II (3p44p to 3p44s), of the excited species with very short lifetimes compared with the external field period. It is emphasised that the power spectrum analysis of the emission intensity serves as an effective new method to investigate the plasma structure, i.e. the bulk and the sheath. Evidence is given that the electron in the bulk of plasma is driven only by the sinusoidal field with the same frequency as the external field. The metastable Ar(3P0,2) and the ion Ar+(2P 12,3/2/) are also investigated by using the second positive and the first negative emissions in the argon plasma with 0.1% of N2 added as a probe.

Original languageEnglish
Article number006
Pages (from-to)1243-1249
Number of pages7
JournalJournal of Physics D: Applied Physics
Volume20
Issue number10
DOIs
Publication statusPublished - 1987 Dec 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

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