Dependence of laser-induced fluorescence on exciting-laser power: partial saturation and laser ? plasma interaction

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F15%3A00080944" target="_blank" >RIV/00216224:14310/15:00080944 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.epjap.org/articles/epjap/abs/2015/08/ap150022/ap150022.html" target="_blank" >http://www.epjap.org/articles/epjap/abs/2015/08/ap150022/ap150022.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/epjap/2015150022" target="_blank" >10.1051/epjap/2015150022</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dependence of laser-induced fluorescence on exciting-laser power: partial saturation and laser ? plasma interaction

Popis výsledku v původním jazyce

In recent publications on laser-induced fluorescence (LIF), the measurements are usually constricted to the region of weak exciting-laser power ? the so called linear LIF. In this work, a practical formula F(E_L) = (alpha) *E_L / (1+(beta)*E_L) describing the dependence of partially saturated fluorescence on the exciting-laser power is derived, together with practical implementation suggestions and comments on its limitations. In the conclusion, the practical formula is proposed with the limitation forvalidity (beta)*EL = 0.4, where (alpha)*EL is the hypothetical linear fluorescence without saturation effects, and a more general formula is derived, which is valid for higher values of (alpha)*EL as well. Extending the range of exciting laser power to the region of partial saturation enhances the signal-to-noise ratio. Such measurements in a surface dielectric barrier discharge further reveal discharge disruption by photoelectrons emitted from the dielectric surface.

Název v anglickém jazyce

Dependence of laser-induced fluorescence on exciting-laser power: partial saturation and laser ? plasma interaction

Popis výsledku anglicky

In recent publications on laser-induced fluorescence (LIF), the measurements are usually constricted to the region of weak exciting-laser power ? the so called linear LIF. In this work, a practical formula F(E_L) = (alpha) *E_L / (1+(beta)*E_L) describing the dependence of partially saturated fluorescence on the exciting-laser power is derived, together with practical implementation suggestions and comments on its limitations. In the conclusion, the practical formula is proposed with the limitation forvalidity (beta)*EL = 0.4, where (alpha)*EL is the hypothetical linear fluorescence without saturation effects, and a more general formula is derived, which is valid for higher values of (alpha)*EL as well. Extending the range of exciting laser power to the region of partial saturation enhances the signal-to-noise ratio. Such measurements in a surface dielectric barrier discharge further reveal discharge disruption by photoelectrons emitted from the dielectric surface.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

The European Physical Journal - Applied Physics

ISSN

1286-0042

e-ISSN

—

Svazek periodika

71

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

9

Strana od-do

"nestrankovano"

Kód UT WoS článku

000359651500012

EID výsledku v databázi Scopus

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