Investigation of a plasma-target interaction through electric field characterization examining surface and volume charge contributions: modeling and experiment

Pedro Viegas, Elmar Slikboer, Adam Obrusnik, Zdenek Bonaventura, Ana Sobota, Enric Garcia-Caurel, Olivier Guaitella, Anne Bourdon

Research output: Contribution to journalArticleAcademicpeer-review

6 Citations (Scopus)

Abstract

Numerical simulations and experiments are performed to better understand the interaction between a pulsed helium plasma jet and a dielectric target. The focus of this work lies on the volume and surface charge influence on the electric field distribution. Experimentally, the electric field due to surface charges is measured inside an electro-optic target under exposure of a plasma jet, using the optical technique called Mueller polarimetry. For the first time, the time-resolved spatial distributions of both the axial and radial components of electric field inside the target are obtained simultaneously. A 2D fluid model is used in a complementary way to the experiments in order to study separately the contribution of volume charges and surface charges to the spatio-temporal evolutions of the electric field during the plasma–surface interaction. The experimental investigation shows that the average axial and radial components of electric field inside the dielectric target, only due to surface charges, are lower than generally reported for electric field values in the plasma plume. Thanks to the phenomenological comparison with experiments, simulations show that during the plasma–surface interaction two effects sequentially determine the electric field inside the target: firstly, a relatively high electric field is observed due to the proximity of the ionization front; afterwards, in longer timescales, lower electric fields are induced due to the contribution of both leftover volume charges close to the target and surface charges deposited on its surface. The experimental technique provides a unique way to examine this second phase of the plasma–surface interaction.
LanguageEnglish
Article number094002
Number of pages16
JournalPlasma Sources Science and Technology
Volume27
Issue number9
DOIs
StatePublished - Sep 2018

Keywords

  • plasma target interaction
  • plasma dielectric interaction
  • plasma jet
  • electric field
  • surface charges
  • Mueller polarimetry
  • electro-optic crystals

Cite this

@article{098880e30fc24c0084324ff5c35147f8,
title = "Investigation of a plasma-target interaction through electric field characterization examining surface and volume charge contributions: modeling and experiment",
abstract = "Numerical simulations and experiments are performed to better understand the interaction between a pulsed helium plasma jet and a dielectric target. The focus of this work lies on the volume and surface charge influence on the electric field distribution. Experimentally, the electric field due to surface charges is measured inside an electro-optic target under exposure of a plasma jet, using the optical technique called Mueller polarimetry. For the first time, the time-resolved spatial distributions of both the axial and radial components of electric field inside the target are obtained simultaneously. A 2D fluid model is used in a complementary way to the experiments in order to study separately the contribution of volume charges and surface charges to the spatio-temporal evolutions of the electric field during the plasma–surface interaction. The experimental investigation shows that the average axial and radial components of electric field inside the dielectric target, only due to surface charges, are lower than generally reported for electric field values in the plasma plume. Thanks to the phenomenological comparison with experiments, simulations show that during the plasma–surface interaction two effects sequentially determine the electric field inside the target: firstly, a relatively high electric field is observed due to the proximity of the ionization front; afterwards, in longer timescales, lower electric fields are induced due to the contribution of both leftover volume charges close to the target and surface charges deposited on its surface. The experimental technique provides a unique way to examine this second phase of the plasma–surface interaction.",
keywords = "plasma target interaction, plasma dielectric interaction, plasma jet, electric field, surface charges, Mueller polarimetry, electro-optic crystals",
author = "Pedro Viegas and Elmar Slikboer and Adam Obrusnik and Zdenek Bonaventura and Ana Sobota and Enric Garcia-Caurel and Olivier Guaitella and Anne Bourdon",
year = "2018",
month = "9",
doi = "10.1088/1361-6595/aadcc0",
language = "English",
volume = "27",
journal = "Plasma Sources Science and Technology",
issn = "0963-0252",
publisher = "Institute of Physics",
number = "9",

}

Investigation of a plasma-target interaction through electric field characterization examining surface and volume charge contributions: modeling and experiment. / Viegas, Pedro; Slikboer, Elmar; Obrusnik, Adam; Bonaventura, Zdenek; Sobota, Ana; Garcia-Caurel, Enric; Guaitella, Olivier; Bourdon, Anne.

In: Plasma Sources Science and Technology, Vol. 27, No. 9, 094002, 09.2018.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Investigation of a plasma-target interaction through electric field characterization examining surface and volume charge contributions: modeling and experiment

AU - Viegas,Pedro

AU - Slikboer,Elmar

AU - Obrusnik,Adam

AU - Bonaventura,Zdenek

AU - Sobota,Ana

AU - Garcia-Caurel,Enric

AU - Guaitella,Olivier

AU - Bourdon,Anne

PY - 2018/9

Y1 - 2018/9

N2 - Numerical simulations and experiments are performed to better understand the interaction between a pulsed helium plasma jet and a dielectric target. The focus of this work lies on the volume and surface charge influence on the electric field distribution. Experimentally, the electric field due to surface charges is measured inside an electro-optic target under exposure of a plasma jet, using the optical technique called Mueller polarimetry. For the first time, the time-resolved spatial distributions of both the axial and radial components of electric field inside the target are obtained simultaneously. A 2D fluid model is used in a complementary way to the experiments in order to study separately the contribution of volume charges and surface charges to the spatio-temporal evolutions of the electric field during the plasma–surface interaction. The experimental investigation shows that the average axial and radial components of electric field inside the dielectric target, only due to surface charges, are lower than generally reported for electric field values in the plasma plume. Thanks to the phenomenological comparison with experiments, simulations show that during the plasma–surface interaction two effects sequentially determine the electric field inside the target: firstly, a relatively high electric field is observed due to the proximity of the ionization front; afterwards, in longer timescales, lower electric fields are induced due to the contribution of both leftover volume charges close to the target and surface charges deposited on its surface. The experimental technique provides a unique way to examine this second phase of the plasma–surface interaction.

AB - Numerical simulations and experiments are performed to better understand the interaction between a pulsed helium plasma jet and a dielectric target. The focus of this work lies on the volume and surface charge influence on the electric field distribution. Experimentally, the electric field due to surface charges is measured inside an electro-optic target under exposure of a plasma jet, using the optical technique called Mueller polarimetry. For the first time, the time-resolved spatial distributions of both the axial and radial components of electric field inside the target are obtained simultaneously. A 2D fluid model is used in a complementary way to the experiments in order to study separately the contribution of volume charges and surface charges to the spatio-temporal evolutions of the electric field during the plasma–surface interaction. The experimental investigation shows that the average axial and radial components of electric field inside the dielectric target, only due to surface charges, are lower than generally reported for electric field values in the plasma plume. Thanks to the phenomenological comparison with experiments, simulations show that during the plasma–surface interaction two effects sequentially determine the electric field inside the target: firstly, a relatively high electric field is observed due to the proximity of the ionization front; afterwards, in longer timescales, lower electric fields are induced due to the contribution of both leftover volume charges close to the target and surface charges deposited on its surface. The experimental technique provides a unique way to examine this second phase of the plasma–surface interaction.

KW - plasma target interaction

KW - plasma dielectric interaction

KW - plasma jet

KW - electric field

KW - surface charges

KW - Mueller polarimetry

KW - electro-optic crystals

U2 - 10.1088/1361-6595/aadcc0

DO - 10.1088/1361-6595/aadcc0

M3 - Article

VL - 27

JO - Plasma Sources Science and Technology

T2 - Plasma Sources Science and Technology

JF - Plasma Sources Science and Technology

SN - 0963-0252

IS - 9

M1 - 094002

ER -