Thulium-doped Ca4GdO(BO3)3 crystals. An investigation of radiative and non-radiative processes
Identifieur interne : 000F55 ( Pascal/Curation ); précédent : 000F54; suivant : 000F56Thulium-doped Ca4GdO(BO3)3 crystals. An investigation of radiative and non-radiative processes
Auteurs : G. Dominiak-Dzik [Pologne] ; W. Ryba-Romanowski [Pologne] ; S. Gołab [Pologne] ; A. Pajaczkowska [Pologne]Source :
- Journal of physics. Condensed matter : (Print) [ 0953-8984 ] ; 2000.
Descripteurs français
- Pascal (Inist)
- Etude expérimentale, Spectre absorption, Photoluminescence, Dépendance température, Champ cristallin, Fluorescence, Déclin luminescence, Effet Judd Ofelt, Processus n phonons, Matériau dopé, Addition thulium, Calcium composé, Gadolinium composé, Borate, Oxyde, Composé quaternaire, Ca4GdO(BO3)3:Tm, B Ca Gd O, 7820C, 7855H.
- Wicri :
- topic : Oxyde.
English descriptors
- KwdEn :
Abstract
An extensive investigation of optical properties was carried out for Tm3+-doped Ca4GdO(BO3)3 crystals in the 5-300 K temperature range. Based on absorption and emission spectra at 5 K, crystal field levels of active ions have been located. Non-equivalent sites for Tm3+ in the Ca4GdO(BO3)3 matrix have been demonstrated. Lifetimes and the fluorescence dynamics were studied as a function of temperature and concentration of thulium ions. The Judd-Ofelt analysis of absorption spectra and the Inokuti-Hirayama model for energy transfer between activator ions provided information on radiative processes and non-radiative relaxation of excited states. Additionally, multiphonon emission was taken into account to explain a very strong quenching of the 3H4 and the 3F4 fluorescence.
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GdO(BO<sub>3</sub>
)<sub>3</sub>
crystals. An investigation of radiative and non-radiative processes</title>
<author><name sortKey="Dominiak Dzik, G" sort="Dominiak Dzik, G" uniqKey="Dominiak Dzik G" first="G." last="Dominiak-Dzik">G. Dominiak-Dzik</name>
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<s2>50-950 Wrocław</s2>
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<author><name sortKey="Golab, S" sort="Golab, S" uniqKey="Golab S" first="S." last="Gołab">S. Gołab</name>
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<author><name sortKey="Pajaczkowska, A" sort="Pajaczkowska, A" uniqKey="Pajaczkowska A" first="A." last="Pajaczkowska">A. Pajaczkowska</name>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Thulium-doped Ca<sub>4</sub>
GdO(BO<sub>3</sub>
)<sub>3</sub>
crystals. An investigation of radiative and non-radiative processes</title>
<author><name sortKey="Dominiak Dzik, G" sort="Dominiak Dzik, G" uniqKey="Dominiak Dzik G" first="G." last="Dominiak-Dzik">G. Dominiak-Dzik</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 2 Okólna Street</s1>
<s2>50-950 Wrocław</s2>
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<sZ>1 aut.</sZ>
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<country>Pologne</country>
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<author><name sortKey="Ryba Romanowski, W" sort="Ryba Romanowski, W" uniqKey="Ryba Romanowski W" first="W." last="Ryba-Romanowski">W. Ryba-Romanowski</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 2 Okólna Street</s1>
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<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
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<country>Pologne</country>
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<author><name sortKey="Golab, S" sort="Golab, S" uniqKey="Golab S" first="S." last="Gołab">S. Gołab</name>
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<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
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<author><name sortKey="Pajaczkowska, A" sort="Pajaczkowska, A" uniqKey="Pajaczkowska A" first="A." last="Pajaczkowska">A. Pajaczkowska</name>
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<series><title level="j" type="main">Journal of physics. Condensed matter : (Print)</title>
<title level="j" type="abbreviated">J. phys., Condens. matter : (Print)</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Absorption spectra</term>
<term>Borates</term>
<term>Calcium compounds</term>
<term>Crystal field</term>
<term>Doped materials</term>
<term>Experimental study</term>
<term>Fluorescence</term>
<term>Gadolinium compounds</term>
<term>Judd Ofelt effect</term>
<term>Luminescence decay</term>
<term>Multi-phonon processes</term>
<term>Oxides</term>
<term>Photoluminescence</term>
<term>Quaternary compounds</term>
<term>Temperature dependence</term>
<term>Thulium additions</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Etude expérimentale</term>
<term>Spectre absorption</term>
<term>Photoluminescence</term>
<term>Dépendance température</term>
<term>Champ cristallin</term>
<term>Fluorescence</term>
<term>Déclin luminescence</term>
<term>Effet Judd Ofelt</term>
<term>Processus n phonons</term>
<term>Matériau dopé</term>
<term>Addition thulium</term>
<term>Calcium composé</term>
<term>Gadolinium composé</term>
<term>Borate</term>
<term>Oxyde</term>
<term>Composé quaternaire</term>
<term>Ca4GdO(BO3)3:Tm</term>
<term>B Ca Gd O</term>
<term>7820C</term>
<term>7855H</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Oxyde</term>
</keywords>
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<front><div type="abstract" xml:lang="en">An extensive investigation of optical properties was carried out for Tm<sup>3+</sup>
-doped Ca<sub>4</sub>
GdO(BO<sub>3</sub>
)<sub>3</sub>
crystals in the 5-300 K temperature range. Based on absorption and emission spectra at 5 K, crystal field levels of active ions have been located. Non-equivalent sites for Tm<sup>3+</sup>
in the Ca<sub>4</sub>
GdO(BO<sub>3</sub>
)<sub>3</sub>
matrix have been demonstrated. Lifetimes and the fluorescence dynamics were studied as a function of temperature and concentration of thulium ions. The Judd-Ofelt analysis of absorption spectra and the Inokuti-Hirayama model for energy transfer between activator ions provided information on radiative processes and non-radiative relaxation of excited states. Additionally, multiphonon emission was taken into account to explain a very strong quenching of the <sup>3</sup>
H<sub>4</sub>
and the <sup>3</sup>
F<sub>4</sub>
fluorescence.</div>
</front>
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GdO(BO<sub>3</sub>
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crystals. An investigation of radiative and non-radiative processes</s1>
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<fA11 i1="01" i2="1"><s1>DOMINIAK-DZIK (G.)</s1>
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<s3>POL</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
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<fC01 i1="01" l="ENG"><s0>An extensive investigation of optical properties was carried out for Tm<sup>3+</sup>
-doped Ca<sub>4</sub>
GdO(BO<sub>3</sub>
)<sub>3</sub>
crystals in the 5-300 K temperature range. Based on absorption and emission spectra at 5 K, crystal field levels of active ions have been located. Non-equivalent sites for Tm<sup>3+</sup>
in the Ca<sub>4</sub>
GdO(BO<sub>3</sub>
)<sub>3</sub>
matrix have been demonstrated. Lifetimes and the fluorescence dynamics were studied as a function of temperature and concentration of thulium ions. The Judd-Ofelt analysis of absorption spectra and the Inokuti-Hirayama model for energy transfer between activator ions provided information on radiative processes and non-radiative relaxation of excited states. Additionally, multiphonon emission was taken into account to explain a very strong quenching of the <sup>3</sup>
H<sub>4</sub>
and the <sup>3</sup>
F<sub>4</sub>
fluorescence.</s0>
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<s5>01</s5>
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<s5>01</s5>
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<fC03 i1="02" i2="3" l="FRE"><s0>Spectre absorption</s0>
<s5>02</s5>
</fC03>
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<s5>02</s5>
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<s5>03</s5>
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<fC03 i1="03" i2="3" l="ENG"><s0>Photoluminescence</s0>
<s5>03</s5>
</fC03>
<fC03 i1="04" i2="3" l="FRE"><s0>Dépendance température</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="3" l="ENG"><s0>Temperature dependence</s0>
<s5>04</s5>
</fC03>
<fC03 i1="05" i2="3" l="FRE"><s0>Champ cristallin</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="3" l="ENG"><s0>Crystal field</s0>
<s5>05</s5>
</fC03>
<fC03 i1="06" i2="3" l="FRE"><s0>Fluorescence</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="3" l="ENG"><s0>Fluorescence</s0>
<s5>06</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE"><s0>Déclin luminescence</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG"><s0>Luminescence decay</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA"><s0>Decadencia luminiscencia</s0>
<s5>07</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Effet Judd Ofelt</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Judd Ofelt effect</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Efecto Judd Ofelt</s0>
<s5>08</s5>
</fC03>
<fC03 i1="09" i2="3" l="FRE"><s0>Processus n phonons</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="3" l="ENG"><s0>Multi-phonon processes</s0>
<s5>09</s5>
</fC03>
<fC03 i1="10" i2="3" l="FRE"><s0>Matériau dopé</s0>
<s5>11</s5>
</fC03>
<fC03 i1="10" i2="3" l="ENG"><s0>Doped materials</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="3" l="FRE"><s0>Addition thulium</s0>
<s5>12</s5>
</fC03>
<fC03 i1="11" i2="3" l="ENG"><s0>Thulium additions</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="3" l="FRE"><s0>Calcium composé</s0>
<s5>13</s5>
</fC03>
<fC03 i1="12" i2="3" l="ENG"><s0>Calcium compounds</s0>
<s5>13</s5>
</fC03>
<fC03 i1="13" i2="3" l="FRE"><s0>Gadolinium composé</s0>
<s5>14</s5>
</fC03>
<fC03 i1="13" i2="3" l="ENG"><s0>Gadolinium compounds</s0>
<s5>14</s5>
</fC03>
<fC03 i1="14" i2="3" l="FRE"><s0>Borate</s0>
<s2>NA</s2>
<s5>15</s5>
</fC03>
<fC03 i1="14" i2="3" l="ENG"><s0>Borates</s0>
<s2>NA</s2>
<s5>15</s5>
</fC03>
<fC03 i1="15" i2="3" l="FRE"><s0>Oxyde</s0>
<s5>16</s5>
</fC03>
<fC03 i1="15" i2="3" l="ENG"><s0>Oxides</s0>
<s5>16</s5>
</fC03>
<fC03 i1="16" i2="3" l="FRE"><s0>Composé quaternaire</s0>
<s5>17</s5>
</fC03>
<fC03 i1="16" i2="3" l="ENG"><s0>Quaternary compounds</s0>
<s5>17</s5>
</fC03>
<fC03 i1="17" i2="3" l="FRE"><s0>Ca4GdO(BO3)3:Tm</s0>
<s4>INC</s4>
<s5>52</s5>
</fC03>
<fC03 i1="18" i2="3" l="FRE"><s0>B Ca Gd O</s0>
<s4>INC</s4>
<s5>53</s5>
</fC03>
<fC03 i1="19" i2="3" l="FRE"><s0>7820C</s0>
<s2>PAC</s2>
<s4>INC</s4>
<s5>56</s5>
</fC03>
<fC03 i1="20" i2="3" l="FRE"><s0>7855H</s0>
<s2>PAC</s2>
<s4>INC</s4>
<s5>57</s5>
</fC03>
<fC07 i1="01" i2="3" l="FRE"><s0>Composé minéral</s0>
<s5>48</s5>
</fC07>
<fC07 i1="01" i2="3" l="ENG"><s0>Inorganic compounds</s0>
<s5>48</s5>
</fC07>
<fC07 i1="02" i2="3" l="FRE"><s0>Lanthanide composé</s0>
<s5>49</s5>
</fC07>
<fC07 i1="02" i2="3" l="ENG"><s0>Rare earth compounds</s0>
<s5>49</s5>
</fC07>
<fN21><s1>248</s1>
</fN21>
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