Spatiotemporal optical structure of plasmas in the E-to-H mode transition in an inductively coupled plasma in Ar

Satoshi Morishita, Yuichiro Hayashi, Toshiaki Makabe

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Abstract

The change in the spatiotemporal structure of the E-to-H transition of an inductively coupled plasma in Ar is optically investigated as a function of time during the transition. Short-lived excited atoms Ar(2p1) and Ar(2p9) with different excitation processes have been used as optical probes. The temporal change from a capacitive to an inductive mode is demonstrated in two-dimensional real space. Different contributions of low-and high-energy electrons to the transition are discussed in terms of the integrated emission intensity from both excited atoms. The optical two-dimensional images enable us to understand the sustaining mechanism and the transition from E-to-H mode.

Original languageEnglish
Article number055007
JournalPlasma Sources Science and Technology
Volume19
Issue number5
DOIs
Publication statusPublished - 2010 Oct

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sustaining
high energy electrons
atoms
probes
excitation

ASJC Scopus subject areas

  • Condensed Matter Physics

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Spatiotemporal optical structure of plasmas in the E-to-H mode transition in an inductively coupled plasma in Ar. / Morishita, Satoshi; Hayashi, Yuichiro; Makabe, Toshiaki.

In: Plasma Sources Science and Technology, Vol. 19, No. 5, 055007, 10.2010.

Research output: Contribution to journalArticle

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