ThuliumV1, Main, Exploration, bibRecord, 000394

Green-to-red light tuning by up-conversion emission via energy transfer in Er3+-Tm3+-codoped germanium-tellurite glasses

Identifieur interne : 000394 ( Main/Exploration ); précédent : 000393; suivant : 000395

Green-to-red light tuning by up-conversion emission via energy transfer in Er3+-Tm3+-codoped germanium-tellurite glasses

Auteurs : V. A. G. Rivera [Brésil, Canada] ; Y. Ledemi [Canada] ; M. Ei-Amraoui [Canada] ; Y. Messaddeq [Canada] ; E. Jr Marega [Brésil]

Source :

Journal of non-crystalline solids [ 0022-3093 ] ; 2014.

RBID : Pascal:14-0151373

Descripteurs français

Pascal (Inist)
- Lumière verte, Conversion fréquence, Transfert énergie, Codopage, Germanium, Luminescence, Propriété optique, Rayonnement UV, Spectre IR proche, Spectre absorption, Durée vie, Rayonnement IR proche, Diode laser, Laser semiconducteur, Verre, Etat fondu, Coulée en moule, Centre donneur, Centre accepteur, Couleur, Etat excité, Rendement quantique, Addition erbium, Photoluminescence, 8105K, 7820, 4255P, 7855.
Wicri :
- topic : Verre.

English descriptors

KwdEn :
- Absorption spectra, Acceptor center, Casting, Codoping, Color, Donor center, Energy transfer, Erbium additions, Excited states, Frequency conversion, Germanium, Glass, Green light, Laser diodes, Lifetime, Luminescence, Melts, Near infrared radiation, Near infrared spectrum, Optical properties, Photoluminescence, Quantum yield, Semiconductor lasers, Ultraviolet radiation.

Abstract

The luminescence properties through up-conversion emission process of Er³⁺-Tm³⁺-codoped germanium-tellurite glasses was carefully investigated by using UV-visible-near-infrared absorption spectroscopy, emission spectroscopy and lifetime measurement under near-infrared laser diode excitation at 976 nm. The glass samples were prepared by the conventional melt-casting technique. The Er³⁺ and Tm³⁺ ions act in this glass matrix as donor and acceptor, respectively, and can generate under 976 nm laser excitation a visible emission tunable from the green to the red color by varying the Tm³⁺ ion concentration. Two mechanisms are involved to obtain this up-conversion emission and its tunability from the green to the red light: (i) the excited state absorption (ESA) of Erbium ions Er³⁺;(4111/2 → ⁴F_7/2) and; (ii) the energy transfers (ETs) between Erbium Er³⁺ and Thulium Tm³⁺ ions. Such processes were studied by means of quantum efficiency and ET probability. It was verified that both of them depend on the Tm³⁺ ion concentration. The relative intensity of the red emission was increased up to 2.6 times for the glasses containing 0.1 mol% and 1.0 mol% of Thulium oxide Tm₂O₃ if compared with the Erbium Er³⁺ single doped glass. The spectroscopic study presented in this work has permitted to fully describe the color rendering, ranging from green to red through yellow and orange, of the light emitted by the Er³⁺-Tm³⁺-codoped germanium-tellurite glasses under a low power laser diode excitation at 976 nm (30 mW).

Affiliations:

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Le document en format XML

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-Tm<sup>3+</sup>
-codoped germanium-tellurite glasses</title>
<author><name sortKey="Rivera, V A G" sort="Rivera, V A G" uniqKey="Rivera V" first="V. A. G." last="Rivera">V. A. G. Rivera</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Green-to-red light tuning by up-conversion emission via energy transfer in Er<sup>3+</sup>
-Tm<sup>3+</sup>
-codoped germanium-tellurite glasses</title>
<author><name sortKey="Rivera, V A G" sort="Rivera, V A G" uniqKey="Rivera V" first="V. A. G." last="Rivera">V. A. G. Rivera</name>
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<author><name sortKey="Ei Amraoui, M" sort="Ei Amraoui, M" uniqKey="Ei Amraoui M" first="M." last="Ei-Amraoui">M. Ei-Amraoui</name>
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<s2>Quebec</s2>
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<author><name sortKey="Messaddeq, Y" sort="Messaddeq, Y" uniqKey="Messaddeq Y" first="Y." last="Messaddeq">Y. Messaddeq</name>
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<wicri:noRegion>Quebec</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Marega, E Jr" sort="Marega, E Jr" uniqKey="Marega E" first="E. Jr" last="Marega">E. Jr Marega</name>
<affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Instituto de Física de São Carlos-Instituto Nacional de Óptica e Fotônica, Universidade de São Paulo, Caixa Postal 369</s1>
<s2>13560-970, Sao Carlos SP</s2>
<s3>BRA</s3>
<sZ>1 aut.</sZ>
<sZ>5 aut.</sZ>
</inist:fA14>
<country>Brésil</country>
<placeName><region type="state">État de São Paulo</region>
<settlement type="city">São Paulo</settlement>
</placeName>
<orgName type="university">Université de São Paulo</orgName>
</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="2014">2014</date>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Absorption spectra</term>
<term>Acceptor center</term>
<term>Casting</term>
<term>Codoping</term>
<term>Color</term>
<term>Donor center</term>
<term>Energy transfer</term>
<term>Erbium additions</term>
<term>Excited states</term>
<term>Frequency conversion</term>
<term>Germanium</term>
<term>Glass</term>
<term>Green light</term>
<term>Laser diodes</term>
<term>Lifetime</term>
<term>Luminescence</term>
<term>Melts</term>
<term>Near infrared radiation</term>
<term>Near infrared spectrum</term>
<term>Optical properties</term>
<term>Photoluminescence</term>
<term>Quantum yield</term>
<term>Semiconductor lasers</term>
<term>Ultraviolet radiation</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Lumière verte</term>
<term>Conversion fréquence</term>
<term>Transfert énergie</term>
<term>Codopage</term>
<term>Germanium</term>
<term>Luminescence</term>
<term>Propriété optique</term>
<term>Rayonnement UV</term>
<term>Spectre IR proche</term>
<term>Spectre absorption</term>
<term>Durée vie</term>
<term>Rayonnement IR proche</term>
<term>Diode laser</term>
<term>Laser semiconducteur</term>
<term>Verre</term>
<term>Etat fondu</term>
<term>Coulée en moule</term>
<term>Centre donneur</term>
<term>Centre accepteur</term>
<term>Couleur</term>
<term>Etat excité</term>
<term>Rendement quantique</term>
<term>Addition erbium</term>
<term>Photoluminescence</term>
<term>8105K</term>
<term>7820</term>
<term>4255P</term>
<term>7855</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Verre</term>
</keywords>
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<front><div type="abstract" xml:lang="en">The luminescence properties through up-conversion emission process of Er<sup>3+</sup>
-Tm<sup>3+</sup>
-codoped germanium-tellurite glasses was carefully investigated by using UV-visible-near-infrared absorption spectroscopy, emission spectroscopy and lifetime measurement under near-infrared laser diode excitation at 976 nm. The glass samples were prepared by the conventional melt-casting technique. The Er<sup>3+</sup>
 and Tm<sup>3+</sup>
 ions act in this glass matrix as donor and acceptor, respectively, and can generate under 976 nm laser excitation a visible emission tunable from the green to the red color by varying the Tm<sup>3+</sup>
 ion concentration. Two mechanisms are involved to obtain this up-conversion emission and its tunability from the green to the red light: (i) the excited state absorption (ESA) of Erbium ions Er<sup>3+</sup>
;(4111/2 → <sup>4</sup>
F<sub>7/2</sub>
) and; (ii) the energy transfers (ETs) between Erbium Er<sup>3+</sup>
 and Thulium Tm<sup>3+</sup>
 ions. Such processes were studied by means of quantum efficiency and ET probability. It was verified that both of them depend on the Tm<sup>3+</sup>
 ion concentration. The relative intensity of the red emission was increased up to 2.6 times for the glasses containing 0.1 mol% and 1.0 mol% of Thulium oxide Tm<sub>2</sub>
O<sub>3</sub>
 if compared with the Erbium Er<sup>3+</sup>
 single doped glass. The spectroscopic study presented in this work has permitted to fully describe the color rendering, ranging from green to red through yellow and orange, of the light emitted by the Er<sup>3+</sup>
-Tm<sup>3+</sup>
-codoped germanium-tellurite glasses under a low power laser diode excitation at 976 nm (30 mW).</div>
</front>
</TEI>
<affiliations><list><country><li>Brésil</li>
<li>Canada</li>
</country>
<region><li>État de São Paulo</li>
</region>
<settlement><li>São Paulo</li>
</settlement>
<orgName><li>Université de São Paulo</li>
</orgName>
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<tree><country name="Brésil"><region name="État de São Paulo"><name sortKey="Rivera, V A G" sort="Rivera, V A G" uniqKey="Rivera V" first="V. A. G." last="Rivera">V. A. G. Rivera</name>
</region>
<name sortKey="Marega, E Jr" sort="Marega, E Jr" uniqKey="Marega E" first="E. Jr" last="Marega">E. Jr Marega</name>
</country>
<country name="Canada"><noRegion><name sortKey="Rivera, V A G" sort="Rivera, V A G" uniqKey="Rivera V" first="V. A. G." last="Rivera">V. A. G. Rivera</name>
</noRegion>
<name sortKey="Ei Amraoui, M" sort="Ei Amraoui, M" uniqKey="Ei Amraoui M" first="M." last="Ei-Amraoui">M. Ei-Amraoui</name>
<name sortKey="Ledemi, Y" sort="Ledemi, Y" uniqKey="Ledemi Y" first="Y." last="Ledemi">Y. Ledemi</name>
<name sortKey="Messaddeq, Y" sort="Messaddeq, Y" uniqKey="Messaddeq Y" first="Y." last="Messaddeq">Y. Messaddeq</name>
</country>
</tree>
</affiliations>
</record>

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Green-to-red light tuning by up-conversion emission via energy transfer in Er3+-Tm3+-codoped germanium-tellurite glasses

Green-to-red light tuning by up-conversion emission via energy transfer in Er3+-Tm3+-codoped germanium-tellurite glasses

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri