Mechanism of the blue up-conversion in Tm3+/Nd3+-doped calcium aluminate glasses
Identifieur interne : 001364 ( Pascal/Curation ); précédent : 001363; suivant : 001365Mechanism of the blue up-conversion in Tm3+/Nd3+-doped calcium aluminate glasses
Auteurs : WOON JIN CHUNG [Corée du Sud] ; JAE RYOUNG YOO [Corée du Sud] ; YOU SONG KIM [Corée du Sud] ; J. Heo [Corée du Sud]Source :
- Journal of the American Ceramic Society [ 0002-7820 ] ; 1997.
Descripteurs français
- Pascal (Inist)
- Photoluminescence, Fluorescence, Matériau dopé, Addition thulium, Addition néodyme, Conversion fréquence, Processus 2 photons, Transition niveau énergie, Durée vie, Calcium oxyde, Aluminium oxyde, Baryum oxyde, Zinc oxyde, Système quaternaire, Composé n éléments, Verre, 7855H, Etude expérimentale, Système Al2O3 BaO CaO ZnO, Al Ba Ca O Zn, Conversion vers fréquence supérieure.
- Wicri :
- topic : Verre.
English descriptors
- KwdEn :
- Aluminium oxides, Barium oxides, Calcium oxides, Doped materials, Energy-level transitions, Experimental study, Fluorescence, Frequency conversion, Glass, Lifetime, Multi-element compounds, Neodymium additions, Photoluminescence, Quaternary systems, Thulium additions, Two photon process, Upconversion, Zinc oxides.
Abstract
Blue up-conversion fluorescence from the Tm3+:1G4→3H6 (480 nm) transition has been observed from calcium aluminate glass codoped with Tm3+/Nd3+, The mechanism for the up-conversion process consists of a two-photon process. An excitation beam with a wavelength of 791 nm first excites Tm3+ to the 3H4 level, where Tm3+ again absorbs the 1060 nm emission from Nd3+:4F3/2→4I11/2 to attain the Tm3+:1G4 level. Lifetime and intensity variations with compositions suggest the presence of an efficient energy transfer from Nd3+ to Tm3+, The highest 480 nm emission intensity has been obtained from the glass with 0.1 mol% of Nd2O3 and 0.2 mol % of Tm2O3.
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/Nd<sup>3+</sup>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Mechanism of the blue up-conversion in Tm<sup>3+</sup>
/Nd<sup>3+</sup>
-doped calcium aluminate glasses</title>
<author><name sortKey="Woon Jin Chung" sort="Woon Jin Chung" uniqKey="Woon Jin Chung" last="Woon Jin Chung">WOON JIN CHUNG</name>
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<author><name sortKey="Jae Ryoung Yoo" sort="Jae Ryoung Yoo" uniqKey="Jae Ryoung Yoo" last="Jae Ryoung Yoo">JAE RYOUNG YOO</name>
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<author><name sortKey="You Song Kim" sort="You Song Kim" uniqKey="You Song Kim" last="You Song Kim">YOU SONG KIM</name>
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<author><name sortKey="Heo, J" sort="Heo, J" uniqKey="Heo J" first="J." last="Heo">J. Heo</name>
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<series><title level="j" type="main">Journal of the American Ceramic Society</title>
<title level="j" type="abbreviated">J. Am. Ceram. Soc.</title>
<idno type="ISSN">0002-7820</idno>
<imprint><date when="1997">1997</date>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aluminium oxides</term>
<term>Barium oxides</term>
<term>Calcium oxides</term>
<term>Doped materials</term>
<term>Energy-level transitions</term>
<term>Experimental study</term>
<term>Fluorescence</term>
<term>Frequency conversion</term>
<term>Glass</term>
<term>Lifetime</term>
<term>Multi-element compounds</term>
<term>Neodymium additions</term>
<term>Photoluminescence</term>
<term>Quaternary systems</term>
<term>Thulium additions</term>
<term>Two photon process</term>
<term>Upconversion</term>
<term>Zinc oxides</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Photoluminescence</term>
<term>Fluorescence</term>
<term>Matériau dopé</term>
<term>Addition thulium</term>
<term>Addition néodyme</term>
<term>Conversion fréquence</term>
<term>Processus 2 photons</term>
<term>Transition niveau énergie</term>
<term>Durée vie</term>
<term>Calcium oxyde</term>
<term>Aluminium oxyde</term>
<term>Baryum oxyde</term>
<term>Zinc oxyde</term>
<term>Système quaternaire</term>
<term>Composé n éléments</term>
<term>Verre</term>
<term>7855H</term>
<term>Etude expérimentale</term>
<term>Système Al2O3 BaO CaO ZnO</term>
<term>Al Ba Ca O Zn</term>
<term>Conversion vers fréquence supérieure</term>
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<front><div type="abstract" xml:lang="en">Blue up-conversion fluorescence from the Tm<sup>3+</sup>
:<sup>1</sup>
G<sub>4</sub>
→<sup>3</sup>
H<sub>6</sub>
(480 nm) transition has been observed from calcium aluminate glass codoped with Tm<sup>3+</sup>
/Nd<sup>3+</sup>
, The mechanism for the up-conversion process consists of a two-photon process. An excitation beam with a wavelength of 791 nm first excites Tm<sup>3+</sup>
to the <sup>3</sup>
H<sub>4</sub>
level, where Tm<sup>3+</sup>
again absorbs the 1060 nm emission from Nd<sup>3+</sup>
:<sup>4</sup>
F<sub>3/2</sub>
→<sup>4</sup>
I<sub>11/2</sub>
to attain the Tm<sup>3+</sup>
:<sup>1</sup>
G<sub>4</sub>
level. Lifetime and intensity variations with compositions suggest the presence of an efficient energy transfer from Nd<sup>3+</sup>
to Tm<sup>3+</sup>
, The highest 480 nm emission intensity has been obtained from the glass with 0.1 mol% of Nd<sub>2</sub>
O<sub>3</sub>
and 0.2 mol % of Tm<sub>2</sub>
O<sub>3</sub>
.</div>
</front>
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:<sup>1</sup>
G<sub>4</sub>
→<sup>3</sup>
H<sub>6</sub>
(480 nm) transition has been observed from calcium aluminate glass codoped with Tm<sup>3+</sup>
/Nd<sup>3+</sup>
, The mechanism for the up-conversion process consists of a two-photon process. An excitation beam with a wavelength of 791 nm first excites Tm<sup>3+</sup>
to the <sup>3</sup>
H<sub>4</sub>
level, where Tm<sup>3+</sup>
again absorbs the 1060 nm emission from Nd<sup>3+</sup>
:<sup>4</sup>
F<sub>3/2</sub>
→<sup>4</sup>
I<sub>11/2</sub>
to attain the Tm<sup>3+</sup>
:<sup>1</sup>
G<sub>4</sub>
level. Lifetime and intensity variations with compositions suggest the presence of an efficient energy transfer from Nd<sup>3+</sup>
to Tm<sup>3+</sup>
, The highest 480 nm emission intensity has been obtained from the glass with 0.1 mol% of Nd<sub>2</sub>
O<sub>3</sub>
and 0.2 mol % of Tm<sub>2</sub>
O<sub>3</sub>
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<s5>03</s5>
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<s5>05</s5>
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<s5>06</s5>
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<s2>NK</s2>
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<s5>93</s5>
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<s4>CD</s4>
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