Two-photon absorption laser-induced fluorescence measurement of atomic hydrogen in discharges and flames induced at atmospheric pressure

DVOŘÁK, Pavel, Martina MRKVIČKOVÁ, Marek TALÁBA, Jan SKALNÍK, Jan KRATZER and Jiří DĚDINA. Two-photon absorption laser-induced fluorescence measurement of atomic hydrogen in discharges and flames induced at atmospheric pressure. In Laser Aided Plasma Diagnostics 2019. 2019.

Basic information

• Original name: Two-photon absorption laser-induced fluorescence measurement of atomic hydrogen in discharges and flames induced at atmospheric pressure
• Name in Czech: Měření atomárního vodíku ve výbojích a plamenech pomocí fluorescence indukované dvoufotonovou absorpcí laserového záření
• Authors: DVOŘÁK, Pavel (203 Czech Republic, guarantor, belonging to the institution), Martina MRKVIČKOVÁ (203 Czech Republic, belonging to the institution), Marek TALÁBA (703 Slovakia, belonging to the institution), Jan SKALNÍK (203 Czech Republic, belonging to the institution), Jan KRATZER and Jiří DĚDINA.
• Edition: Laser Aided Plasma Diagnostics 2019, 2019.

Other information

• Original language: English
• Type of outcome: Conference abstract
• Field of Study: 10305 Fluids and plasma physics
• Country of publisher: United States of America
• Confidentiality degree: is not subject to a state or trade secret
• RIV identification code: RIV/00216224:14310/19:00108085
• Organization unit: Faculty of Science
• Keywords (in Czech): TALIF;vodík;plazma;plamen
• Keywords in English: TALIF;hydrogen;plasma;flame
• Tags: International impact, Reviewed

Abstract

Atomic hydrogen radicals were measured in various discharges and flames ignited at atmospheric pressure by means of two-photon absorption laser-induced fluorescence (TALIF). In order to use this method, several complications had to be solved, for example interaction between laser beam and solid surfaces (which leads to laser scattering, fluorescence of the solid material and emission of adsorbed electrons), fast quenching of the excited state or partial saturation of the fluorescence process. The TALIF method was used in various dielectric barrier discharges including both the volume and surface DBD and it was confirmed that the contraction of the DBD to a surface discharge increases the concentration of radical species. The (TA)LIF was further used for detection of various radical species in atomizers, devices used in analytical chemistry for dissociation of various volatile compounds. It was confirmed that atomic hydrogen radicals play the key role in the atomization of studied species, especially of volatile hydrides.

Abstract (in Czech)

Měření atomárního vodíku metodou TALIF

Links

• ED2.1.00/03.0086, research and development project: Name: Regionální VaV centrum pro nízkonákladové plazmové a nanotechnologické povrchové úpravy
• GA17-04329S, research and development project: Name: Atomizátory hydridů pro atomovou absorpční a atomovou fluorescenční spektrometrii - nové horizonty

Investor: Czech Science Foundation

• LO1411, research and development project: Name: Rozvoj centra pro nízkonákladové plazmové a nanotechnologické povrchové úpravy (Acronym: CEPLANT plus)

Investor: Ministry of Education, Youth and Sports of the CR