Energy transfer between Tm3+ and Er3+ ions in a TeO2-based glass pumped at diode laser wavelength
Identifieur interne : 001698 ( Main/Merge ); précédent : 001697; suivant : 001699Energy transfer between Tm3+ and Er3+ ions in a TeO2-based glass pumped at diode laser wavelength
Auteurs : A. B. De Souza [Brésil] ; M. T. De Araujo [Brésil] ; M. V. D. Vermelho [Brésil] ; F. C. Cassanjes [Brésil] ; S. J. L. Ribeiro [Brésil] ; Y. Massaddeq [Brésil]Source :
- Journal of non-crystalline solids [ 0022-3093 ] ; 2007.
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- Pascal (Inist)
- Wicri :
- topic : Dopage.
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- KwdEn :
Abstract
In this paper we investigate the energy transfer processes in Tm3+/Er3+ doped telluride glass pumped at the commercial diode laser pump wavelength ∼800 nm. Tailoring the rare-earths content in the glass matrix, seven main energy transfer channels within the doping range considered were identified. A 6-fold enhancement of the Er3+ visible frequency upconversion fluorescence at ∼660 nm is observed due to the inclusion of Tm3+ ions. This is evidence of the relevant contribution of the route Er1(4I11/2) + Er2(4I13/2) → Er1(4I15/2) + Er2(4F9/2) to the process. Energy migration among pumped 4I9/2 level reducing the efficiency of the upconversion emission rate (3H11/2, 4S3/2, and 4F9/2) is observed for Er3+ above 1.5 wt%. The rate equations regarding the observed energy transfer routes are determined and a qualitative analysis of the observed processes is reported.
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and Er<sup>3+</sup>
ions in a TeO<sub>2</sub>
-based glass pumped at diode laser wavelength</title>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Energy transfer between Tm<sup>3+</sup>
and Er<sup>3+</sup>
ions in a TeO<sub>2</sub>
-based glass pumped at diode laser wavelength</title>
<author><name sortKey="De Souza, A B" sort="De Souza, A B" uniqKey="De Souza A" first="A. B." last="De Souza">A. B. De Souza</name>
<affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Departamento de Física, Universidade Fédéral de Alagoas</s1>
<s2>Maceió, 57072/970, AL</s2>
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<country>Brésil</country>
<placeName><region type="state">Alagoas</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="De Araujo, M T" sort="De Araujo, M T" uniqKey="De Araujo M" first="M. T." last="De Araujo">M. T. De Araujo</name>
<affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Departamento de Física, Universidade Fédéral de Alagoas</s1>
<s2>Maceió, 57072/970, AL</s2>
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<sZ>1 aut.</sZ>
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</inist:fA14>
<country>Brésil</country>
<placeName><region type="state">Alagoas</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Vermelho, M V D" sort="Vermelho, M V D" uniqKey="Vermelho M" first="M. V. D." last="Vermelho">M. V. D. Vermelho</name>
<affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Departamento de Física, Universidade Fédéral de Alagoas</s1>
<s2>Maceió, 57072/970, AL</s2>
<s3>BRA</s3>
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<sZ>3 aut.</sZ>
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<country>Brésil</country>
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<author><name sortKey="Cassanjes, F C" sort="Cassanjes, F C" uniqKey="Cassanjes F" first="F. C." last="Cassanjes">F. C. Cassanjes</name>
<affiliation wicri:level="2"><inist:fA14 i1="02"><s1>Instituto de Química, UNESP</s1>
<s2>Araraquara, 14800/900, SP</s2>
<s3>BRA</s3>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
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</inist:fA14>
<country>Brésil</country>
<placeName><region type="state">État de São Paulo</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Ribeiro, S J L" sort="Ribeiro, S J L" uniqKey="Ribeiro S" first="S. J. L." last="Ribeiro">S. J. L. Ribeiro</name>
<affiliation wicri:level="2"><inist:fA14 i1="02"><s1>Instituto de Química, UNESP</s1>
<s2>Araraquara, 14800/900, SP</s2>
<s3>BRA</s3>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
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<country>Brésil</country>
<placeName><region type="state">État de São Paulo</region>
</placeName>
</affiliation>
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<author><name sortKey="Massaddeq, Y" sort="Massaddeq, Y" uniqKey="Massaddeq Y" first="Y." last="Massaddeq">Y. Massaddeq</name>
<affiliation wicri:level="2"><inist:fA14 i1="02"><s1>Instituto de Química, UNESP</s1>
<s2>Araraquara, 14800/900, SP</s2>
<s3>BRA</s3>
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<sZ>5 aut.</sZ>
<sZ>6 aut.</sZ>
</inist:fA14>
<country>Brésil</country>
<placeName><region type="state">État de São Paulo</region>
</placeName>
</affiliation>
</author>
</analytic>
<series><title level="j" type="main">Journal of non-crystalline solids</title>
<title level="j" type="abbreviated">J. non-cryst. solids</title>
<idno type="ISSN">0022-3093</idno>
<imprint><date when="2007">2007</date>
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<seriesStmt><title level="j" type="main">Journal of non-crystalline solids</title>
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</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Chalcogenide glasses</term>
<term>Doping</term>
<term>Energy transfer</term>
<term>Energy-level transitions</term>
<term>Erbium additions</term>
<term>Fluorescence</term>
<term>Frequency conversion</term>
<term>Photoluminescence</term>
<term>Rate equation</term>
<term>Tellurites</term>
<term>Thulium additions</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Transfert énergie</term>
<term>Addition thulium</term>
<term>Dopage</term>
<term>Conversion fréquence</term>
<term>Fluorescence</term>
<term>Addition erbium</term>
<term>Transition niveau énergie</term>
<term>Photoluminescence</term>
<term>Equation vitesse</term>
<term>Verre chalcogénure</term>
<term>Tellurite</term>
<term>7855Q</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Dopage</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">In this paper we investigate the energy transfer processes in Tm<sup>3+</sup>
/Er<sup>3+</sup>
doped telluride glass pumped at the commercial diode laser pump wavelength ∼800 nm. Tailoring the rare-earths content in the glass matrix, seven main energy transfer channels within the doping range considered were identified. A 6-fold enhancement of the Er<sup>3+</sup>
visible frequency upconversion fluorescence at ∼660 nm is observed due to the inclusion of Tm<sup>3+</sup>
ions. This is evidence of the relevant contribution of the route Er<sub>1</sub>
(<sup>4</sup>
I<sub>11/2</sub>
) + Er<sub>2</sub>
(<sup>4</sup>
I<sub>13/2</sub>
) → Er<sub>1</sub>
(<sup>4</sup>
I<sub>15/2</sub>
) + Er<sub>2</sub>
(<sup>4</sup>
F<sub>9/2</sub>
) to the process. Energy migration among pumped <sup>4</sup>
I<sub>9/2</sub>
level reducing the efficiency of the upconversion emission rate (<sup>3</sup>
H<sub>11/2</sub>
, <sup>4</sup>
S<sub>3/2</sub>
, and <sup>4</sup>
F<sub>9/2</sub>
) is observed for Er<sup>3+</sup>
above 1.5 wt%. The rate equations regarding the observed energy transfer routes are determined and a qualitative analysis of the observed processes is reported.</div>
</front>
</TEI>
<affiliations><list><country><li>Brésil</li>
</country>
<region><li>Alagoas</li>
<li>État de São Paulo</li>
</region>
</list>
<tree><country name="Brésil"><region name="Alagoas"><name sortKey="De Souza, A B" sort="De Souza, A B" uniqKey="De Souza A" first="A. B." last="De Souza">A. B. De Souza</name>
</region>
<name sortKey="Cassanjes, F C" sort="Cassanjes, F C" uniqKey="Cassanjes F" first="F. C." last="Cassanjes">F. C. Cassanjes</name>
<name sortKey="De Araujo, M T" sort="De Araujo, M T" uniqKey="De Araujo M" first="M. T." last="De Araujo">M. T. De Araujo</name>
<name sortKey="Massaddeq, Y" sort="Massaddeq, Y" uniqKey="Massaddeq Y" first="Y." last="Massaddeq">Y. Massaddeq</name>
<name sortKey="Ribeiro, S J L" sort="Ribeiro, S J L" uniqKey="Ribeiro S" first="S. J. L." last="Ribeiro">S. J. L. Ribeiro</name>
<name sortKey="Vermelho, M V D" sort="Vermelho, M V D" uniqKey="Vermelho M" first="M. V. D." last="Vermelho">M. V. D. Vermelho</name>
</country>
</tree>
</affiliations>
</record>
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