Absolute CO number densities measured using TALIF in a non-thermal plasma environment

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Uittreksel

We report first measurements of time-resolved absolute CO number densities and rotational temperatures in a non-thermal CO2 plasma environment using TALIF with a nanosecond pulsed laser. Two-photon excitation spectra from the ${B}^{1}{{\rm{\Sigma }}}^{+}$(v' = 0) ← ${X}^{1}{{\rm{\Sigma }}}^{+}$(v'' = 0) Q-branch are recorded and fitted to extract rotational temperatures. Absolute number densities are determined from the frequency-integrated excitation spectrum. The plasma under investigation is a pulsed glow discharge operated at a frequency of 60 Hz with an plasma-on time of 5 ms per plasma cycle, 50 mA plasma current and a pressure of 6.67 mbar. CO number densities range from $(2.6\pm 0.6)\times {10}^{22}$ m−3 to $(1.2\pm 0.3)\times {10}^{22}$ m−3, while rotational temperatures range from 370 ± 40 K to 700 ± 70 K at the beginning and end of the plasma-on phase, respectively. Our results show fair agreement with literature data.
Originele taal-2Engels
Artikelnummer115006
TijdschriftPlasma Sources Science and Technology
Volume28
Nummer van het tijdschrift11
DOI's
StatusGepubliceerd - 7 nov 2019

Vingerafdruk

plasma currents
glow discharges
excitation
temperature
pulsed lasers
cycles
photons

Citeer dit

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title = "Absolute CO number densities measured using TALIF in a non-thermal plasma environment",
abstract = "We report first measurements of time-resolved absolute CO number densities and rotational temperatures in a non-thermal CO2 plasma environment using TALIF with a nanosecond pulsed laser. Two-photon excitation spectra from the ${B}^{1}{{\rm{\Sigma }}}^{+}$(v' = 0) ← ${X}^{1}{{\rm{\Sigma }}}^{+}$(v'' = 0) Q-branch are recorded and fitted to extract rotational temperatures. Absolute number densities are determined from the frequency-integrated excitation spectrum. The plasma under investigation is a pulsed glow discharge operated at a frequency of 60 Hz with an plasma-on time of 5 ms per plasma cycle, 50 mA plasma current and a pressure of 6.67 mbar. CO number densities range from $(2.6\pm 0.6)\times {10}^{22}$ m−3 to $(1.2\pm 0.3)\times {10}^{22}$ m−3, while rotational temperatures range from 370 ± 40 K to 700 ± 70 K at the beginning and end of the plasma-on phase, respectively. Our results show fair agreement with literature data.",
author = "Damen, {Mark A.} and D.A.C.M. Hage and {van de Steeg}, {Alex W.} and Martini, {Luca Matteo} and Engeln, {Richard A.H.}",
year = "2019",
month = "11",
day = "7",
doi = "10.1088/1361-6595/ab496e",
language = "English",
volume = "28",
journal = "Plasma Sources Science and Technology",
issn = "0963-0252",
publisher = "Institute of Physics",
number = "11",

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Absolute CO number densities measured using TALIF in a non-thermal plasma environment. / Damen, Mark A.; Hage, D.A.C.M.; van de Steeg, Alex W.; Martini, Luca Matteo; Engeln, Richard A.H. (Corresponding author).

In: Plasma Sources Science and Technology, Vol. 28, Nr. 11, 115006, 07.11.2019.

Onderzoeksoutput: Bijdrage aan tijdschriftTijdschriftartikelAcademicpeer review

TY - JOUR

T1 - Absolute CO number densities measured using TALIF in a non-thermal plasma environment

AU - Damen, Mark A.

AU - Hage, D.A.C.M.

AU - van de Steeg, Alex W.

AU - Martini, Luca Matteo

AU - Engeln, Richard A.H.

PY - 2019/11/7

Y1 - 2019/11/7

N2 - We report first measurements of time-resolved absolute CO number densities and rotational temperatures in a non-thermal CO2 plasma environment using TALIF with a nanosecond pulsed laser. Two-photon excitation spectra from the ${B}^{1}{{\rm{\Sigma }}}^{+}$(v' = 0) ← ${X}^{1}{{\rm{\Sigma }}}^{+}$(v'' = 0) Q-branch are recorded and fitted to extract rotational temperatures. Absolute number densities are determined from the frequency-integrated excitation spectrum. The plasma under investigation is a pulsed glow discharge operated at a frequency of 60 Hz with an plasma-on time of 5 ms per plasma cycle, 50 mA plasma current and a pressure of 6.67 mbar. CO number densities range from $(2.6\pm 0.6)\times {10}^{22}$ m−3 to $(1.2\pm 0.3)\times {10}^{22}$ m−3, while rotational temperatures range from 370 ± 40 K to 700 ± 70 K at the beginning and end of the plasma-on phase, respectively. Our results show fair agreement with literature data.

AB - We report first measurements of time-resolved absolute CO number densities and rotational temperatures in a non-thermal CO2 plasma environment using TALIF with a nanosecond pulsed laser. Two-photon excitation spectra from the ${B}^{1}{{\rm{\Sigma }}}^{+}$(v' = 0) ← ${X}^{1}{{\rm{\Sigma }}}^{+}$(v'' = 0) Q-branch are recorded and fitted to extract rotational temperatures. Absolute number densities are determined from the frequency-integrated excitation spectrum. The plasma under investigation is a pulsed glow discharge operated at a frequency of 60 Hz with an plasma-on time of 5 ms per plasma cycle, 50 mA plasma current and a pressure of 6.67 mbar. CO number densities range from $(2.6\pm 0.6)\times {10}^{22}$ m−3 to $(1.2\pm 0.3)\times {10}^{22}$ m−3, while rotational temperatures range from 370 ± 40 K to 700 ± 70 K at the beginning and end of the plasma-on phase, respectively. Our results show fair agreement with literature data.

U2 - 10.1088/1361-6595/ab496e

DO - 10.1088/1361-6595/ab496e

M3 - Article

VL - 28

JO - Plasma Sources Science and Technology

JF - Plasma Sources Science and Technology

SN - 0963-0252

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M1 - 115006

ER -