Spatial nonuniformity of electron energy in a microwave atmospheric-pressure microplasma

Li Guo Zhu; Zhi Bo Zhang; Xi Ming Zhu; Yi Kang Pu; Ze Ren Li

doi:10.1063/1.3119316

Spatial nonuniformity of electron energy in a microwave atmospheric-pressure microplasma

Li Guo Zhu
, Zhi Bo Zhang
, Xi Ming Zhu
, Yi Kang Pu^*
, Ze Ren Li

^*Corresponding author for this work

Tsinghua University
China Academy of Engineering Physics
Tufts University

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The characteristics of the electron energy in a microwave atmospheric-pressure argon microplasma are investigated by a spatially resolved optical emission spectroscopy. By adding tiny amount of xenon (<1 ppm) as tracer gas into the argon discharge, it is found that the spatial distribution of the electrons with energy >8.3 eV is quite different from that of the electrons with energy >11.5 eV. Spatial distribution of the population ratio between 4p and 5p levels of Ar atom is also determined. Furthermore, with a collisional-radiative model, it is found that the spatial variation of this population ratio is mainly attributed to the spatial nonuniformity of the effective electron temperature.

Original language	English
Article number	151502
Journal	Applied Physics Letters
Volume	94
Issue number	15
DOIs	https://doi.org/10.1063/1.3119316
State	Published - 2009
Externally published	Yes

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10.1063/1.3119316

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title = "Spatial nonuniformity of electron energy in a microwave atmospheric-pressure microplasma",

abstract = "The characteristics of the electron energy in a microwave atmospheric-pressure argon microplasma are investigated by a spatially resolved optical emission spectroscopy. By adding tiny amount of xenon (<1 ppm) as tracer gas into the argon discharge, it is found that the spatial distribution of the electrons with energy >8.3 eV is quite different from that of the electrons with energy >11.5 eV. Spatial distribution of the population ratio between 4p and 5p levels of Ar atom is also determined. Furthermore, with a collisional-radiative model, it is found that the spatial variation of this population ratio is mainly attributed to the spatial nonuniformity of the effective electron temperature.",

author = "Zhu, \{Li Guo\} and Zhang, \{Zhi Bo\} and Zhu, \{Xi Ming\} and Pu, \{Yi Kang\} and Li, \{Ze Ren\}",

year = "2009",

doi = "10.1063/1.3119316",

language = "英语",

volume = "94",

journal = "Applied Physics Letters",

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T1 - Spatial nonuniformity of electron energy in a microwave atmospheric-pressure microplasma

AU - Zhu, Li Guo

AU - Zhang, Zhi Bo

AU - Zhu, Xi Ming

AU - Pu, Yi Kang

AU - Li, Ze Ren

PY - 2009

Y1 - 2009

N2 - The characteristics of the electron energy in a microwave atmospheric-pressure argon microplasma are investigated by a spatially resolved optical emission spectroscopy. By adding tiny amount of xenon (<1 ppm) as tracer gas into the argon discharge, it is found that the spatial distribution of the electrons with energy >8.3 eV is quite different from that of the electrons with energy >11.5 eV. Spatial distribution of the population ratio between 4p and 5p levels of Ar atom is also determined. Furthermore, with a collisional-radiative model, it is found that the spatial variation of this population ratio is mainly attributed to the spatial nonuniformity of the effective electron temperature.

AB - The characteristics of the electron energy in a microwave atmospheric-pressure argon microplasma are investigated by a spatially resolved optical emission spectroscopy. By adding tiny amount of xenon (<1 ppm) as tracer gas into the argon discharge, it is found that the spatial distribution of the electrons with energy >8.3 eV is quite different from that of the electrons with energy >11.5 eV. Spatial distribution of the population ratio between 4p and 5p levels of Ar atom is also determined. Furthermore, with a collisional-radiative model, it is found that the spatial variation of this population ratio is mainly attributed to the spatial nonuniformity of the effective electron temperature.

UR - https://www.scopus.com/pages/publications/65249170836

U2 - 10.1063/1.3119316

DO - 10.1063/1.3119316

M3 - 文章

AN - SCOPUS:65249170836

SN - 0003-6951

VL - 94

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 15

M1 - 151502

ER -

Spatial nonuniformity of electron energy in a microwave atmospheric-pressure microplasma

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