Fine structure of modal focusing effect in a three dimensional plasma-sheath-lens formed by disk electrodes

Eugen Stamate, Masahito Yamaguchi

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Abstract

Modal and discrete focusing effects associated with three-dimensional plasma-sheath-lenses show promising potential for applications in ion beam extraction, mass spectrometry, plasma diagnostics and for basic studies of plasma sheath. The ion focusing properties can be adjusted by controlling the geometrical structure of the plasma-sheath-lens and plasma parameters. The positive and negative ion kinetics within the plasma-sheath-lens are investigated both experimentally and theoretically and a modal focusing ring is identified on the surface of disk electrodes. The focusing ring is very sensitive to the sheath thickness and can be used to monitor very small changes in plasma parameters. Three dimensional simulations are found to be in very good agreement with experiments.
Original languageEnglish
Article number094106
JournalApplied Physics Letters
Volume107
Issue number9
Number of pages4
ISSN0003-6951
DOIs
Publication statusPublished - 2015

Bibliographical note

Copyright 2015, American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in (Applied Physics Letters 107 (2015) 094106) and may be found at http://scitation.aip.org/content/aip/journal/apl/107/9/10.1063/1.4930063.

Cite this

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title = "Fine structure of modal focusing effect in a three dimensional plasma-sheath-lens formed by disk electrodes",
abstract = "Modal and discrete focusing effects associated with three-dimensional plasma-sheath-lenses show promising potential for applications in ion beam extraction, mass spectrometry, plasma diagnostics and for basic studies of plasma sheath. The ion focusing properties can be adjusted by controlling the geometrical structure of the plasma-sheath-lens and plasma parameters. The positive and negative ion kinetics within the plasma-sheath-lens are investigated both experimentally and theoretically and a modal focusing ring is identified on the surface of disk electrodes. The focusing ring is very sensitive to the sheath thickness and can be used to monitor very small changes in plasma parameters. Three dimensional simulations are found to be in very good agreement with experiments.",
author = "Eugen Stamate and Masahito Yamaguchi",
note = "Copyright 2015, American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in (Applied Physics Letters 107 (2015) 094106) and may be found at http://scitation.aip.org/content/aip/journal/apl/107/9/10.1063/1.4930063.",
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Fine structure of modal focusing effect in a three dimensional plasma-sheath-lens formed by disk electrodes. / Stamate, Eugen; Yamaguchi, Masahito .

In: Applied Physics Letters, Vol. 107, No. 9, 094106, 2015.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Fine structure of modal focusing effect in a three dimensional plasma-sheath-lens formed by disk electrodes

AU - Stamate, Eugen

AU - Yamaguchi, Masahito

N1 - Copyright 2015, American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in (Applied Physics Letters 107 (2015) 094106) and may be found at http://scitation.aip.org/content/aip/journal/apl/107/9/10.1063/1.4930063.

PY - 2015

Y1 - 2015

N2 - Modal and discrete focusing effects associated with three-dimensional plasma-sheath-lenses show promising potential for applications in ion beam extraction, mass spectrometry, plasma diagnostics and for basic studies of plasma sheath. The ion focusing properties can be adjusted by controlling the geometrical structure of the plasma-sheath-lens and plasma parameters. The positive and negative ion kinetics within the plasma-sheath-lens are investigated both experimentally and theoretically and a modal focusing ring is identified on the surface of disk electrodes. The focusing ring is very sensitive to the sheath thickness and can be used to monitor very small changes in plasma parameters. Three dimensional simulations are found to be in very good agreement with experiments.

AB - Modal and discrete focusing effects associated with three-dimensional plasma-sheath-lenses show promising potential for applications in ion beam extraction, mass spectrometry, plasma diagnostics and for basic studies of plasma sheath. The ion focusing properties can be adjusted by controlling the geometrical structure of the plasma-sheath-lens and plasma parameters. The positive and negative ion kinetics within the plasma-sheath-lens are investigated both experimentally and theoretically and a modal focusing ring is identified on the surface of disk electrodes. The focusing ring is very sensitive to the sheath thickness and can be used to monitor very small changes in plasma parameters. Three dimensional simulations are found to be in very good agreement with experiments.

U2 - 10.1063/1.4930063

DO - 10.1063/1.4930063

M3 - Journal article

VL - 107

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 9

M1 - 094106

ER -