ThuliumV1, Main, Exploration, bibRecord, 001085

Synthesis and infrared spectroscopic properties of Tm3+-doped phosphate glasses

Identifieur interne : 001085 ( Main/Exploration ); précédent : 001084; suivant : 001086

Synthesis and infrared spectroscopic properties of Tm3+-doped phosphate glasses

Auteurs : A. Kermaoui [Algérie] ; F. Pelle [France]

Source :

Journal of alloys and compounds [ 0925-8388 ] ; 2009.

RBID : Pascal:09-0228123

Descripteurs français

Pascal (Inist)
- Addition thulium, Dopage, Théorie Judd Ofelt, Emission spontanée, Etat excité, Durée vie radiative, Rapport branchement, Fluorescence, Emission stimulée, Transition niveau énergie, Verre phosphate, Oxyde de potassium, Oxyde de calcium, Oxyde d'aluminium, 7855H.
Wicri :
- topic : Dopage.

English descriptors

KwdEn :
- Aluminium oxide, Branching ratio, Calcium oxide, Doping, Energy-level transitions, Excited states, Fluorescence, Judd-Ofelt theory, Phosphate glass, Potassium oxide, Radiative lifetimes, Spontaneous emission, Stimulated emission, Thulium additions.

Abstract

A vitreous domain is investigated in the pseudo-ternary system: P₂O5-K₂O-CaO-(5Al₂O₃). The optimal glass composition has been defined as: 50% P₂O5-30% K₂O-15% CaO and [(5-x)% Al₂O₃ +x% Tm₂O₃]. The physical and spectroscopic properties of the glass containing 0.75 mol% Tm₂O₃ are reported. Judd-Ofelt intensity parameters have been determined and compared to those of Tm³⁺ in other glasses. From the intensity parameters, spontaneous emission probabilities, excited state radiative lifetimes and branching ratios were calculated. The recorded fluorescence spectra have been used to estimate the stimulated emission cross-section of near infrared emissions. Gain cross-section spectrum has been calculated for the ³F₄ → ³H₆ transition which arises at 1.8 μm. The results are compared with those obtained for other materials investigated for infrared amplifiers in this spectral range.

Affiliations:

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Le document en format XML

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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aluminium oxide</term>
<term>Branching ratio</term>
<term>Calcium oxide</term>
<term>Doping</term>
<term>Energy-level transitions</term>
<term>Excited states</term>
<term>Fluorescence</term>
<term>Judd-Ofelt theory</term>
<term>Phosphate glass</term>
<term>Potassium oxide</term>
<term>Radiative lifetimes</term>
<term>Spontaneous emission</term>
<term>Stimulated emission</term>
<term>Thulium additions</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Addition thulium</term>
<term>Dopage</term>
<term>Théorie Judd Ofelt</term>
<term>Emission spontanée</term>
<term>Etat excité</term>
<term>Durée vie radiative</term>
<term>Rapport branchement</term>
<term>Fluorescence</term>
<term>Emission stimulée</term>
<term>Transition niveau énergie</term>
<term>Verre phosphate</term>
<term>Oxyde de potassium</term>
<term>Oxyde de calcium</term>
<term>Oxyde d'aluminium</term>
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<front><div type="abstract" xml:lang="en">A vitreous domain is investigated in the pseudo-ternary system: P<sub>2</sub>
O5-K<sub>2</sub>
O-CaO-(5Al<sub>2</sub>
O<sub>3</sub>
). The optimal glass composition has been defined as: 50% P<sub>2</sub>
O5-30% K<sub>2</sub>
O-15% CaO and [(5-x)% Al<sub>2</sub>
O<sub>3</sub>
 +x% Tm<sub>2</sub>
O<sub>3</sub>
]. The physical and spectroscopic properties of the glass containing 0.75 mol% Tm<sub>2</sub>
O<sub>3</sub>
 are reported. Judd-Ofelt intensity parameters have been determined and compared to those of Tm<sup>3+</sup>
 in other glasses. From the intensity parameters, spontaneous emission probabilities, excited state radiative lifetimes and branching ratios were calculated. The recorded fluorescence spectra have been used to estimate the stimulated emission cross-section of near infrared emissions. Gain cross-section spectrum has been calculated for the <sup>3</sup>
F<sub>4</sub>
 → <sup>3</sup>
H<sub>6</sub>
 transition which arises at 1.8 μm. The results are compared with those obtained for other materials investigated for infrared amplifiers in this spectral range.</div>
</front>
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Synthesis and infrared spectroscopic properties of Tm3+-doped phosphate glasses

Synthesis and infrared spectroscopic properties of Tm3+-doped phosphate 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