Gas temperature measuements by high-resolution TALIF
International audience Two-photon Absorption Laser-Induced Fluorescence (TALIF) is a well-established technique to measure relative (and with appropriate calibration techniques, absolute) densities of atoms in plasmas and flames. The excitation line profiles can provide additional information, but t...
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ftunivnantes:oai:HAL:hal-02593694v1 2023-05-15T16:50:20+02:00 Gas temperature measuements by high-resolution TALIF Booth, Jean-Paul Laboratoire de Physique des Plasmas (LPP) Université Paris-Sud - Paris 11 (UP11)-Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École polytechnique (X)-Sorbonne Université (SU)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) Reykjavik, Iceland 2016-09-19 https://hal.science/hal-02593694 en eng HAL CCSD hal-02593694 https://hal.science/hal-02593694 Workshop on Oxygen Plasma Kinetics https://hal.science/hal-02593694 Workshop on Oxygen Plasma Kinetics, Sep 2016, Reykjavik, Iceland [PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph] info:eu-repo/semantics/conferenceObject Conference papers 2016 ftunivnantes 2023-01-25T00:29:12Z International audience Two-photon Absorption Laser-Induced Fluorescence (TALIF) is a well-established technique to measure relative (and with appropriate calibration techniques, absolute) densities of atoms in plasmas and flames. The excitation line profiles can provide additional information, but this is usually overlooked due to the mediocre spectral resolution of commercial pulsed dye laser systems. We have investigated O-atom TALIF excitation line profiles using a house-built narrow line-width pulsed UV laser system, based on pulsed Ti:Sa ring laser seeded by a cw infrared diode laser. The observed Doppler profiles allow unambiguous measurement of gas temperature with high precision in O2 and CO2 DC glow discharges. Sub-Doppler measurements, performed by reflecting the laser beam back through excitation zone, allow the pressure-broadened line shapes to be observed, both in a pure O2 DC discharge (up to 10 Torr pressure) and in an atmospheric pressure RF plasma jet in He/O2. Pressure broadening coefficients of the 3p3PJ state of O were determined for O2 and He bath gases, and were found to be an order of magnitude bigger than that predicted from the measured quenching rate. Conference Object Iceland Université de Nantes: HAL-UNIV-NANTES |
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Open Polar |
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Université de Nantes: HAL-UNIV-NANTES |
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ftunivnantes |
language |
English |
topic |
[PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph] |
spellingShingle |
[PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph] Booth, Jean-Paul Gas temperature measuements by high-resolution TALIF |
topic_facet |
[PHYS.PHYS.PHYS-PLASM-PH]Physics [physics]/Physics [physics]/Plasma Physics [physics.plasm-ph] |
description |
International audience Two-photon Absorption Laser-Induced Fluorescence (TALIF) is a well-established technique to measure relative (and with appropriate calibration techniques, absolute) densities of atoms in plasmas and flames. The excitation line profiles can provide additional information, but this is usually overlooked due to the mediocre spectral resolution of commercial pulsed dye laser systems. We have investigated O-atom TALIF excitation line profiles using a house-built narrow line-width pulsed UV laser system, based on pulsed Ti:Sa ring laser seeded by a cw infrared diode laser. The observed Doppler profiles allow unambiguous measurement of gas temperature with high precision in O2 and CO2 DC glow discharges. Sub-Doppler measurements, performed by reflecting the laser beam back through excitation zone, allow the pressure-broadened line shapes to be observed, both in a pure O2 DC discharge (up to 10 Torr pressure) and in an atmospheric pressure RF plasma jet in He/O2. Pressure broadening coefficients of the 3p3PJ state of O were determined for O2 and He bath gases, and were found to be an order of magnitude bigger than that predicted from the measured quenching rate. |
author2 |
Laboratoire de Physique des Plasmas (LPP) Université Paris-Sud - Paris 11 (UP11)-Observatoire de Paris Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École polytechnique (X)-Sorbonne Université (SU)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS) |
format |
Conference Object |
author |
Booth, Jean-Paul |
author_facet |
Booth, Jean-Paul |
author_sort |
Booth, Jean-Paul |
title |
Gas temperature measuements by high-resolution TALIF |
title_short |
Gas temperature measuements by high-resolution TALIF |
title_full |
Gas temperature measuements by high-resolution TALIF |
title_fullStr |
Gas temperature measuements by high-resolution TALIF |
title_full_unstemmed |
Gas temperature measuements by high-resolution TALIF |
title_sort |
gas temperature measuements by high-resolution talif |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.science/hal-02593694 |
op_coverage |
Reykjavik, Iceland |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
Workshop on Oxygen Plasma Kinetics https://hal.science/hal-02593694 Workshop on Oxygen Plasma Kinetics, Sep 2016, Reykjavik, Iceland |
op_relation |
hal-02593694 https://hal.science/hal-02593694 |
_version_ |
1766040499881246720 |