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

J 2015

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

VORÁČ, Jan, Pavel DVOŘÁK, Vojtěch PROCHÁZKA, Tomáš MORÁVEK, Jozef RÁHEĽ et. al.

Basic information

Original name

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

Authors

VORÁČ, Jan (203 Czech Republic, guarantor, belonging to the institution), Pavel DVOŘÁK (203 Czech Republic, belonging to the institution), Vojtěch PROCHÁZKA (203 Czech Republic, belonging to the institution), Tomáš MORÁVEK (703 Slovakia, belonging to the institution) and Jozef RÁHEĽ (703 Slovakia, belonging to the institution)

Edition

The European Physical Journal - Applied Physics, EDP Sciences, 2015, 1286-0042

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10305 Fluids and plasma physics

Country of publisher

France

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 0.667

RIV identification code

RIV/00216224:14310/15:00080944

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1051/epjap/2015150022

UT WoS

000359651500012

Keywords in English

laser-induced fluorescence; least-squares fitting; partial saturation; lifetime

Abstract

V originále

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.

Links

ED2.1.00/03.0086, research and development project

Name: Regionální VaV centrum pro nízkonákladové plazmové a nanotechnologické povrchové úpravy

GA13-24635S, research and development project

Name: Spektroskopické studium rekombinace povrchového náboje v dielektrických bariérových výbojích

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

Citovat

VORÁČ, Jan, Pavel DVOŘÁK, Vojtěch PROCHÁZKA, Tomáš MORÁVEK and Jozef RÁHEĽ. Dependence of laser-induced fluorescence on exciting-laser power: partial saturation and laser – plasma interaction. The European Physical Journal - Applied Physics. EDP Sciences, 2015, vol. 71, No 2, p. "nestrankovano", 9 pp. ISSN 1286-0042. Available from: https://dx.doi.org/10.1051/epjap/2015150022.

@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 and 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, 2015, vol.~71, No~2, p.~''nestrankovano'', 9 pp. ISSN~1286-0042. Available from: https://dx.doi.org/10.1051/epjap/2015150022.

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