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Spectroscopic investigation of Tm3+:TeO2-WO3 glass

Identifieur interne : 001348 ( Main/Curation ); précédent : 001347; suivant : 001349

Spectroscopic investigation of Tm3+:TeO2-WO3 glass

Auteurs : Hamit Kalaycioglu [Turquie] ; Huseyin Cankaya [Turquie] ; M. Natali Cizmeciyan [Turquie] ; Alphan Sennaroglu [Turquie] ; Gonul Ozen [Turquie]

Source :

Journal of luminescence [ 0022-2313 ] ; 2008.

RBID : Pascal:08-0383061

Descripteurs français

Pascal (Inist)
- Spectre absorption, Théorie Judd Ofelt, Durée vie radiative, Fluorescence, Addition thulium, Dopage, Concentration impureté, Transition niveau énergie, Relaxation croisée, Emission stimulée, Tungstate, Système binaire, Verre chalcogénure, Verre de tellurite.
Wicri :
- topic : Dopage.

English descriptors

KwdEn :
- Absorption spectra, Binary systems, Chalcogenide glasses, Cross relaxation, Doping, Energy-level transitions, Fluorescence, Impurity density, Judd-Ofelt theory, Radiative lifetimes, Stimulated emission, Thulium additions, Tungstates.

Abstract

We studied the spectroscopic characteristics of telluride glass with the host composition (0.85)Te02-(0.15)W03, containing 0.25 and 1.0mol% thulium oxide (Tm₂O₃). By analyzing the absorption spectra with the Judd-Ofelt theory, the average radiative lifetimes of 305±7.5 μs and 1.95±0.02ms were determined for the ³F₄ and ³H₄ levels, respectively. Measured fluorescence lifetime of the ³F₄ level decreased from 218 to 51 μs for the 0.25 and 1.0 mol% Tm₂O₃ doped samples, respectively, indicating the effect of boosted non-radiative decay at higher doping concentrations. A similar trend was observed for the ³H₄ level, where the fluorescence lifetime decreased from 1.86ms to 350 μs at these concentrations. The quenching of the 1460nm (³F₄→³H₄) emission in favor of the 1800nm (³H₄→³H₆) emission due to cross relaxation was further evident in the fluorescence spectra of the samples. The calculated stimulated emission cross sections (3.73±0.1 x 10^-21cm² at 1460nm and 6.57±0.07 x 10^-21cm² at 1808nm) reveal the potential importance of the Tm³⁺:(0.85)TeO₂-(0.15)WO₃ glass for applications in fiber-optic amplifiers and fiber lasers.

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Le document en format XML

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:TeO<sub>2</sub>
-WO<sub>3</sub>
 glass</title>
<author><name sortKey="Kalaycioglu, Hamit" sort="Kalaycioglu, Hamit" uniqKey="Kalaycioglu H" first="Hamit" last="Kalaycioglu">Hamit Kalaycioglu</name>
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<s2>Sariyer, 34450 Istanbul</s2>
<s3>TUR</s3>
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<author><name sortKey="Ozen, Gonul" sort="Ozen, Gonul" uniqKey="Ozen G" first="Gonul" last="Ozen">Gonul Ozen</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Spectroscopic investigation of Tm<sup>3+</sup>
:TeO<sub>2</sub>
-WO<sub>3</sub>
 glass</title>
<author><name sortKey="Kalaycioglu, Hamit" sort="Kalaycioglu, Hamit" uniqKey="Kalaycioglu H" first="Hamit" last="Kalaycioglu">Hamit Kalaycioglu</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laser Research Laboratory, Department of Physics, Koç University, Rumelifeneri Yolu</s1>
<s2>Sariyer, 34450 Istanbul</s2>
<s3>TUR</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Turquie</country>
<wicri:noRegion>Sariyer, 34450 Istanbul</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Cankaya, Huseyin" sort="Cankaya, Huseyin" uniqKey="Cankaya H" first="Huseyin" last="Cankaya">Huseyin Cankaya</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laser Research Laboratory, Department of Physics, Koç University, Rumelifeneri Yolu</s1>
<s2>Sariyer, 34450 Istanbul</s2>
<s3>TUR</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Turquie</country>
<wicri:noRegion>Sariyer, 34450 Istanbul</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Cizmeciyan, M Natali" sort="Cizmeciyan, M Natali" uniqKey="Cizmeciyan M" first="M. Natali" last="Cizmeciyan">M. Natali Cizmeciyan</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laser Research Laboratory, Department of Physics, Koç University, Rumelifeneri Yolu</s1>
<s2>Sariyer, 34450 Istanbul</s2>
<s3>TUR</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Turquie</country>
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</affiliation>
</author>
<author><name sortKey="Sennaroglu, Alphan" sort="Sennaroglu, Alphan" uniqKey="Sennaroglu A" first="Alphan" last="Sennaroglu">Alphan Sennaroglu</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Laser Research Laboratory, Department of Physics, Koç University, Rumelifeneri Yolu</s1>
<s2>Sariyer, 34450 Istanbul</s2>
<s3>TUR</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Turquie</country>
<wicri:noRegion>Sariyer, 34450 Istanbul</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Ozen, Gonul" sort="Ozen, Gonul" uniqKey="Ozen G" first="Gonul" last="Ozen">Gonul Ozen</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Department of Physics, Istanbul Technical University</s1>
<s2>Maslak, 34469 Istanbul</s2>
<s3>TUR</s3>
<sZ>5 aut.</sZ>
</inist:fA14>
<country>Turquie</country>
<wicri:noRegion>Maslak, 34469 Istanbul</wicri:noRegion>
</affiliation>
</author>
</analytic>
<series><title level="j" type="main">Journal of luminescence</title>
<title level="j" type="abbreviated">J. lumin.</title>
<idno type="ISSN">0022-2313</idno>
<imprint><date when="2008">2008</date>
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<seriesStmt><title level="j" type="main">Journal of luminescence</title>
<title level="j" type="abbreviated">J. lumin.</title>
<idno type="ISSN">0022-2313</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Absorption spectra</term>
<term>Binary systems</term>
<term>Chalcogenide glasses</term>
<term>Cross relaxation</term>
<term>Doping</term>
<term>Energy-level transitions</term>
<term>Fluorescence</term>
<term>Impurity density</term>
<term>Judd-Ofelt theory</term>
<term>Radiative lifetimes</term>
<term>Stimulated emission</term>
<term>Thulium additions</term>
<term>Tungstates</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Spectre absorption</term>
<term>Théorie Judd Ofelt</term>
<term>Durée vie radiative</term>
<term>Fluorescence</term>
<term>Addition thulium</term>
<term>Dopage</term>
<term>Concentration impureté</term>
<term>Transition niveau énergie</term>
<term>Relaxation croisée</term>
<term>Emission stimulée</term>
<term>Tungstate</term>
<term>Système binaire</term>
<term>Verre chalcogénure</term>
<term>Verre de tellurite</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Dopage</term>
</keywords>
</textClass>
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</teiHeader>
<front><div type="abstract" xml:lang="en">We studied the spectroscopic characteristics of telluride glass with the host composition (0.85)Te02-(0.15)W03, containing 0.25 and 1.0mol% thulium oxide (Tm<sub>2</sub>
O<sub>3</sub>
). By analyzing the absorption spectra with the Judd-Ofelt theory, the average radiative lifetimes of 305±7.5 μs and 1.95±0.02ms were determined for the <sup>3</sup>
F<sub>4</sub>
 and <sup>3</sup>
H<sub>4</sub>
 levels, respectively. Measured fluorescence lifetime of the <sup>3</sup>
F<sub>4</sub>
 level decreased from 218 to 51 μs for the 0.25 and 1.0 mol% Tm<sub>2</sub>
O<sub>3</sub>
 doped samples, respectively, indicating the effect of boosted non-radiative decay at higher doping concentrations. A similar trend was observed for the <sup>3</sup>
H<sub>4</sub>
 level, where the fluorescence lifetime decreased from 1.86ms to 350 μs at these concentrations. The quenching of the 1460nm (<sup>3</sup>
F<sub>4</sub>
→<sup>3</sup>
H<sub>4</sub>
) emission in favor of the 1800nm (<sup>3</sup>
H<sub>4</sub>
→<sup>3</sup>
H<sub>6</sub>
) emission due to cross relaxation was further evident in the fluorescence spectra of the samples. The calculated stimulated emission cross sections (3.73±0.1 x 10<sup>-21</sup>
cm<sup>2</sup>
 at 1460nm and 6.57±0.07 x 10<sup>-21</sup>
cm<sup>2</sup>
 at 1808nm) reveal the potential importance of the Tm<sup>3+</sup>
:(0.85)TeO<sub>2</sub>
-(0.15)WO<sub>3</sub>
 glass for applications in fiber-optic amplifiers and fiber lasers.</div>
</front>
</TEI>
</record>

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Spectroscopic investigation of Tm3+:TeO2-WO3 glass

Spectroscopic investigation of Tm3+:TeO2-WO3 glass

Source :

Descripteurs français

English descriptors

Abstract

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