ThuliumV1, Main, Exploration, bibRecordById, Pascal:08-0378792

Anti-Stokes emission in LaAlO3 crystal doped with Tm3+ ions

Identifieur interne : 001454 ( Main/Exploration ); précédent : 001453; suivant : 001455

Anti-Stokes emission in LaAlO3 crystal doped with Tm3+ ions

Auteurs : P. J. Deren [Pologne] ; Ph. Goldner [France] ; O. Guillot-Noël [France]

Source :

Journal of alloys and compounds [ 0925-8388 ] ; 2008.

RBID : Pascal:08-0378792

Descripteurs français

Pascal (Inist)
- Processus n photons, Dopage, Onde entretenue, Rayonnement UV, Photoluminescence, Spectre excitation, Etat excité, Relaxation croisée, Transition niveau énergie, Impureté, Addition thulium, Oxyde de lanthane, Oxyde d'aluminium, Monocristal, Perovskites, LaAlO3.
Wicri :
- topic : Dopage.

English descriptors

KwdEn :
- Aluminium oxide, Continuous wave, Cross relaxation, Doping, Energy-level transitions, Excitation spectrum, Excited states, Impurities, Lanthanum oxide, Monocrystals, Multi-photon processes, Perovskites, Photoluminescence, Thulium additions, Ultraviolet radiation.

Abstract

LaAlO₃ single crystal doped with Tm³⁺ ions was investigated. After continuous wave excitation of the ³F₂ level (at about 15,115cm^-1) strong violet and UV light was observed which corresponds to the ¹D₂ → ³F₄ (22,000 cm^-1) and the ¹D₂→ ³H₆ (27,700 cm^-1) as well as the ³ P₀ →³F₄ (28,600 cm^-1) transition, respectively. Emission and excitation spectra of the Stokes and anti-Stokes emission were measured. Excitation spectrum was compared with absorption one. Power dependence of the anti-Stokes emission was recorded and analyzed. Possible mechanisms of three or more photons excited state absorption (ESA) and cross-relaxation are discussed.

Affiliations:

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Le document en format XML

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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Anti-Stokes emission in LaAlO<sub>3</sub>
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<author><name sortKey="Guillot Noel, O" sort="Guillot Noel, O" uniqKey="Guillot Noel O" first="O." last="Guillot-Noël">O. Guillot-Noël</name>
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<term>Cross relaxation</term>
<term>Doping</term>
<term>Energy-level transitions</term>
<term>Excitation spectrum</term>
<term>Excited states</term>
<term>Impurities</term>
<term>Lanthanum oxide</term>
<term>Monocrystals</term>
<term>Multi-photon processes</term>
<term>Perovskites</term>
<term>Photoluminescence</term>
<term>Thulium additions</term>
<term>Ultraviolet radiation</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Processus n photons</term>
<term>Dopage</term>
<term>Onde entretenue</term>
<term>Rayonnement UV</term>
<term>Photoluminescence</term>
<term>Spectre excitation</term>
<term>Etat excité</term>
<term>Relaxation croisée</term>
<term>Transition niveau énergie</term>
<term>Impureté</term>
<term>Addition thulium</term>
<term>Oxyde de lanthane</term>
<term>Oxyde d'aluminium</term>
<term>Monocristal</term>
<term>Perovskites</term>
<term>LaAlO3</term>
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<front><div type="abstract" xml:lang="en">LaAlO<sub>3</sub>
 single crystal doped with Tm<sup>3+</sup>
 ions was investigated. After continuous wave excitation of the <sup>3</sup>
F<sub>2</sub>
 level (at about 15,115cm<sup>-1</sup>
) strong violet and UV light was observed which corresponds to the <sup>1</sup>
D<sub>2</sub>
 → <sup>3</sup>
F<sub>4</sub>
 (22,000 cm<sup>-1</sup>
) and the <sup>1</sup>
D<sub>2</sub>
→ <sup>3</sup>
H<sub>6</sub>
 (27,700 cm<sup>-1</sup>
) as well as the <sup>3</sup>
 P<sub>0</sub>
 →<sup>3</sup>
F<sub>4</sub>
 (28,600 cm<sup>-1</sup>
) transition, respectively. Emission and excitation spectra of the Stokes and anti-Stokes emission were measured. Excitation spectrum was compared with absorption one. Power dependence of the anti-Stokes emission was recorded and analyzed. Possible mechanisms of three or more photons excited state absorption (ESA) and cross-relaxation are discussed.</div>
</front>
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<country name="France"><region name="Île-de-France"><name sortKey="Goldner, Ph" sort="Goldner, Ph" uniqKey="Goldner P" first="Ph." last="Goldner">Ph. Goldner</name>
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<name sortKey="Guillot Noel, O" sort="Guillot Noel, O" uniqKey="Guillot Noel O" first="O." last="Guillot-Noël">O. Guillot-Noël</name>
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Anti-Stokes emission in LaAlO3 crystal doped with Tm3+ ions

Anti-Stokes emission in LaAlO3 crystal doped with Tm3+ ions

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