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@article{1308335,
author = {Voráč, Jan and Dvořák, Pavel and Procházka, Vojtěch and Morávek, Tomáš and Ráheľ, Jozef},
article_number = {2},
doi = {http://dx.doi.org/10.1051/epjap/2015150022},
keywords = {laser-induced fluorescence; least-squares fitting; partial saturation; lifetime},
language = {eng},
issn = {1286-0042},
journal = {The European Physical Journal - Applied Physics},
title = {Dependence of laser-induced fluorescence on exciting-laser power: partial saturation and laser – plasma interaction},
url = {http://www.epjap.org/articles/epjap/abs/2015/08/ap150022/ap150022.html},
volume = {71},
year = {2015}
}
TY - JOUR
ID - 1308335
AU - Voráč, Jan - Dvořák, Pavel - Procházka, Vojtěch - Morávek, Tomáš - Ráheľ, Jozef
PY - 2015
TI - Dependence of laser-induced fluorescence on exciting-laser power: partial saturation and laser – plasma interaction
JF - The European Physical Journal - Applied Physics
VL - 71
IS - 2
SP - "nestrankovano"
EP - "nestrankovano"
PB - EDP Sciences
SN - 12860042
KW - laser-induced fluorescence
KW - least-squares fitting
KW - partial saturation
KW - lifetime
UR - http://www.epjap.org/articles/epjap/abs/2015/08/ap150022/ap150022.html
L2 - http://www.epjap.org/articles/epjap/abs/2015/08/ap150022/ap150022.html
N2 - 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 for validity (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. Methods of control and solution of this problem are discussed.
ER -
VORÁČ, Jan, Pavel DVOŘÁK, Vojtěch PROCHÁZKA, Tomáš MORÁVEK a Jozef RÁHEĽ. Dependence of laser-induced fluorescence on exciting-laser power: partial saturation and laser – plasma interaction. \textit{The European Physical Journal - Applied Physics}. EDP Sciences, roč.~71, č.~2, s.~''nestrankovano'', 9 s. ISSN~1286-0042. doi:10.1051/epjap/2015150022. 2015.
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