ThuliumV1, Pascal, Corpus, bibRecord, 000787

Crystal growth and spectroscopic analysis of codoped (Ho,Tm):KGd(WO4)2

Identifieur interne : 000787 ( Pascal/Corpus ); précédent : 000786; suivant : 000788

Crystal growth and spectroscopic analysis of codoped (Ho,Tm):KGd(WO4)2

Auteurs : O. Silvestre ; M. C. Pujol ; F. Güell ; M. Aguilo ; F. Diaz ; A. Brenier ; G. Boulon

Source :

Applied physics. B, Lasers and optics : (Print) [ 0946-2171 ] ; 2007.

RBID : Pascal:07-0193319

Descripteurs français

Pascal (Inist)
- Croissance cristalline en solution, Durée vie, Spectre émission, Spectre fluorescence, Matériau dopé, Addition thulium, Potassium tungstate, Gadolinium tungstate, Composé quaternaire, Matériau optique, Codopage, Matériau laser, Holmium, Thulium ion, Addition holmium, Cristal monoclinique, Tm:KGd(WO4)2, KGd(WO4)2, Gd K O W, 8110D, 4270H.

English descriptors

KwdEn :
- Codoping, Crystal growth from solutions, Doped materials, Emission spectra, Fluorescence spectrum, Gadolinium tungstates, Holmium, Holmium additions, Laser materials, Lifetime, Monoclinic crystals, Optical materials, Potassium tungstates, Quaternary compounds, Thulium additions, Thulium ions.

Abstract

We present the crystal growth of monoclinic KGd(WO₄)₂ codoped with holmium and thulium by a top-seeded solution growth and slow cooling method. Macrodefect-free crystals with sizes about 8.5 x 5 x 12 (a* x b x c, dimensions in mm) were obtained. A complete study of the spectroscopic parameters of the holmium emission ⁵I₇ → ⁵I_8, around 2 microns, sensitized by the thulium ion, was made. Polarized absorption measurements were performed to characterize the optimum pumping wavelength in the system. The maximum value of the cross section is 8.0x10² cm² with E//Np direction at a wavelength value of 794 nm. The emission cross section of the 2-micron holmium transition has been calculated by the reciprocity method. The experimental lifetime of the ⁵I₇ level has been measured in relation to holmium and thulium concentrations.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

A01	`01`	`1`		`@0 0946-2171`
A03		`1`		`@0 Appl. phys., B Lasers opt. : (Print)`
A05				`@2 87`
A06				`@2 1`
A08	`01`	`1`	`ENG`	`@1 Crystal growth and spectroscopic analysis of codoped (Ho,Tm):KGd(WO₄)₂`
A11	`01`	`1`		`@1 SILVESTRE (O.)`
A11	`02`	`1`		`@1 PUJOL (M. C.)`
A11	`03`	`1`		`@1 GÜELL (F.)`
A11	`04`	`1`		`@1 AGUILO (M.)`
A11	`05`	`1`		`@1 DIAZ (F.)`
A11	`06`	`1`		`@1 BRENIER (A.)`
A11	`07`	`1`		`@1 BOULON (G.)`
A14	`01`			`@1 Física i Cristal-lografia de Materials (FiCMA), Universitat Rovira i Virgili, Campus Sescelades c/Marcel. lí Domingo, s/n @2 43007 Tarragona @3 ESP @Z 1 aut. @Z 2 aut. @Z 3 aut. @Z 4 aut. @Z 5 aut.`
A14	`02`			`@1 Physico Chimie des Matériaux Luminescents, Université Claude Bernard Lyon 1, UMR 5620 CNRS, Bât. A. Kastler, 10 rue Ampère @2 69622 Villeurbanne @3 FRA @Z 6 aut. @Z 7 aut.`
A20				`@1 111-117`
A21				`@1 2007`
A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 16194B @5 354000145692230200`
A44				`@0 0000 @1 © 2007 INIST-CNRS. All rights reserved.`
A45				`@0 49 ref.`
A47	`01`	`1`		`@0 07-0193319`
A60				`@1 P`
A61				`@0 A`
A64	`01`	`1`		`@0 Applied physics. B, Lasers and optics : (Print)`
A66	`01`			`@0 DEU`
C01	`01`		`ENG`	@0 We present the crystal growth of monoclinic KGd(WO₄)₂ codoped with holmium and thulium by a top-seeded solution growth and slow cooling method. Macrodefect-free crystals with sizes about 8.5 x 5 x 12 (a* x b x c, dimensions in mm) were obtained. A complete study of the spectroscopic parameters of the holmium emission ⁵I₇ → ⁵I_8, around 2 microns, sensitized by the thulium ion, was made. Polarized absorption measurements were performed to characterize the optimum pumping wavelength in the system. The maximum value of the cross section is 8.0x10² cm² with E//Np direction at a wavelength value of 794 nm. The emission cross section of the 2-micron holmium transition has been calculated by the reciprocity method. The experimental lifetime of the ⁵I₇ level has been measured in relation to holmium and thulium concentrations.
C02	`01`	`3`		`@0 001B80A10D`
C02	`02`	`3`		`@0 001B40B70H`
C03	`01`	`3`	`FRE`	`@0 Croissance cristalline en solution @5 31`
C03	`01`	`3`	`ENG`	`@0 Crystal growth from solutions @5 31`
C03	`02`	`3`	`FRE`	`@0 Durée vie @5 41`
C03	`02`	`3`	`ENG`	`@0 Lifetime @5 41`
C03	`03`	`3`	`FRE`	`@0 Spectre émission @5 42`
C03	`03`	`3`	`ENG`	`@0 Emission spectra @5 42`
C03	`04`	`X`	`FRE`	`@0 Spectre fluorescence @5 43`
C03	`04`	`X`	`ENG`	`@0 Fluorescence spectrum @5 43`
C03	`04`	`X`	`SPA`	`@0 Espectro fluorescencia @5 43`
C03	`05`	`3`	`FRE`	`@0 Matériau dopé @5 50`
C03	`05`	`3`	`ENG`	`@0 Doped materials @5 50`
C03	`06`	`3`	`FRE`	`@0 Addition thulium @5 51`
C03	`06`	`3`	`ENG`	`@0 Thulium additions @5 51`
C03	`07`	`3`	`FRE`	`@0 Potassium tungstate @2 NK @5 52`
C03	`07`	`3`	`ENG`	`@0 Potassium tungstates @2 NK @5 52`
C03	`08`	`3`	`FRE`	`@0 Gadolinium tungstate @2 NK @5 53`
C03	`08`	`3`	`ENG`	`@0 Gadolinium tungstates @2 NK @5 53`
C03	`09`	`3`	`FRE`	`@0 Composé quaternaire @5 54`
C03	`09`	`3`	`ENG`	`@0 Quaternary compounds @5 54`
C03	`10`	`3`	`FRE`	`@0 Matériau optique @5 55`
C03	`10`	`3`	`ENG`	`@0 Optical materials @5 55`
C03	`11`	`X`	`FRE`	`@0 Codopage @5 57`
C03	`11`	`X`	`ENG`	`@0 Codoping @5 57`
C03	`11`	`X`	`SPA`	`@0 Codrogado @5 57`
C03	`12`	`3`	`FRE`	`@0 Matériau laser @5 58`
C03	`12`	`3`	`ENG`	`@0 Laser materials @5 58`
C03	`13`	`3`	`FRE`	`@0 Holmium @2 NC @5 61`
C03	`13`	`3`	`ENG`	`@0 Holmium @2 NC @5 61`
C03	`14`	`3`	`FRE`	`@0 Thulium ion @2 NC @5 62`
C03	`14`	`3`	`ENG`	`@0 Thulium ions @2 NC @5 62`
C03	`15`	`3`	`FRE`	`@0 Addition holmium @5 63`
C03	`15`	`3`	`ENG`	`@0 Holmium additions @5 63`
C03	`16`	`X`	`FRE`	`@0 Cristal monoclinique @5 64`
C03	`16`	`X`	`ENG`	`@0 Monoclinic crystals @5 64`
C03	`16`	`X`	`SPA`	`@0 Cristal monoclínico @5 64`
C03	`17`	`3`	`FRE`	`@0 Tm:KGd(WO4)2 @4 INC @5 71`
C03	`18`	`3`	`FRE`	`@0 KGd(WO4)2 @4 INC @5 72`
C03	`19`	`3`	`FRE`	`@0 Gd K O W @4 INC @5 75`
C03	`20`	`3`	`FRE`	`@0 8110D @4 INC @5 83`
C03	`21`	`3`	`FRE`	`@0 4270H @4 INC @5 84`
N21				`@1 128`

Format Inist (serveur)

NO :	PASCAL 07-0193319 INIST
ET :	Crystal growth and spectroscopic analysis of codoped (Ho,Tm):KGd(WO₄)₂
AU :	SILVESTRE (O.); PUJOL (M. C.); GÜELL (F.); AGUILO (M.); DIAZ (F.); BRENIER (A.); BOULON (G.)
AF :	Física i Cristal-lografia de Materials (FiCMA), Universitat Rovira i Virgili, Campus Sescelades c/Marcel. lí Domingo, s/n/43007 Tarragona/Espagne (1 aut., 2 aut., 3 aut., 4 aut., 5 aut.); Physico Chimie des Matériaux Luminescents, Université Claude Bernard Lyon 1, UMR 5620 CNRS, Bât. A. Kastler, 10 rue Ampère/69622 Villeurbanne/France (6 aut., 7 aut.)
DT :	Publication en série; Niveau analytique
SO :	Applied physics. B, Lasers and optics : (Print); ISSN 0946-2171; Allemagne; Da. 2007; Vol. 87; No. 1; Pp. 111-117; Bibl. 49 ref.
LA :	Anglais
EA :	We present the crystal growth of monoclinic KGd(WO₄)₂ codoped with holmium and thulium by a top-seeded solution growth and slow cooling method. Macrodefect-free crystals with sizes about 8.5 x 5 x 12 (a* x b x c, dimensions in mm) were obtained. A complete study of the spectroscopic parameters of the holmium emission ⁵I₇ → ⁵I_8, around 2 microns, sensitized by the thulium ion, was made. Polarized absorption measurements were performed to characterize the optimum pumping wavelength in the system. The maximum value of the cross section is 8.0x10² cm² with E//Np direction at a wavelength value of 794 nm. The emission cross section of the 2-micron holmium transition has been calculated by the reciprocity method. The experimental lifetime of the ⁵I₇ level has been measured in relation to holmium and thulium concentrations.
CC :	001B80A10D; 001B40B70H
FD :	Croissance cristalline en solution; Durée vie; Spectre émission; Spectre fluorescence; Matériau dopé; Addition thulium; Potassium tungstate; Gadolinium tungstate; Composé quaternaire; Matériau optique; Codopage; Matériau laser; Holmium; Thulium ion; Addition holmium; Cristal monoclinique; Tm:KGd(WO4)2; KGd(WO4)2; Gd K O W; 8110D; 4270H
ED :	Crystal growth from solutions; Lifetime; Emission spectra; Fluorescence spectrum; Doped materials; Thulium additions; Potassium tungstates; Gadolinium tungstates; Quaternary compounds; Optical materials; Codoping; Laser materials; Holmium; Thulium ions; Holmium additions; Monoclinic crystals
SD :	Espectro fluorescencia; Codrogado; Cristal monoclínico
LO :	INIST-16194B.354000145692230200
ID :	07-0193319

Links to Exploration step

Pascal:07-0193319

Le document en format XML

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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Crystal growth and spectroscopic analysis of codoped (Ho,Tm):KGd(WO<sub>4</sub>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Codoping</term>
<term>Crystal growth from solutions</term>
<term>Doped materials</term>
<term>Emission spectra</term>
<term>Fluorescence spectrum</term>
<term>Gadolinium tungstates</term>
<term>Holmium</term>
<term>Holmium additions</term>
<term>Laser materials</term>
<term>Lifetime</term>
<term>Monoclinic crystals</term>
<term>Optical materials</term>
<term>Potassium tungstates</term>
<term>Quaternary compounds</term>
<term>Thulium additions</term>
<term>Thulium ions</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Croissance cristalline en solution</term>
<term>Durée vie</term>
<term>Spectre émission</term>
<term>Spectre fluorescence</term>
<term>Matériau dopé</term>
<term>Addition thulium</term>
<term>Potassium tungstate</term>
<term>Gadolinium tungstate</term>
<term>Composé quaternaire</term>
<term>Matériau optique</term>
<term>Codopage</term>
<term>Matériau laser</term>
<term>Holmium</term>
<term>Thulium ion</term>
<term>Addition holmium</term>
<term>Cristal monoclinique</term>
<term>Tm:KGd(WO4)2</term>
<term>KGd(WO4)2</term>
<term>Gd K O W</term>
<term>8110D</term>
<term>4270H</term>
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<front><div type="abstract" xml:lang="en">We present the crystal growth of monoclinic KGd(WO<sub>4</sub>
)<sub>2</sub>
 codoped with holmium and thulium by a top-seeded solution growth and slow cooling method. Macrodefect-free crystals with sizes about 8.5 x 5 x 12 (a* x b x c, dimensions in mm) were obtained. A complete study of the spectroscopic parameters of the holmium emission <sup>5</sup>
I<sub>7</sub>
 → <sup>5</sup>
I<sub>8,</sub>
 around 2 microns, sensitized by the thulium ion, was made. Polarized absorption measurements were performed to characterize the optimum pumping wavelength in the system. The maximum value of the cross section is 8.0x10<sup>2</sup>
 cm<sup>2</sup>
 with E//Np direction at a wavelength value of 794 nm. The emission cross section of the 2-micron holmium transition has been calculated by the reciprocity method. The experimental lifetime of the <sup>5</sup>
I<sub>7</sub>
 level has been measured in relation to holmium and thulium concentrations.</div>
</front>
</TEI>
<inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0946-2171</s0>
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<fA03 i2="1"><s0>Appl. phys., B Lasers opt. : (Print)</s0>
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<fA05><s2>87</s2>
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<fA06><s2>1</s2>
</fA06>
<fA08 i1="01" i2="1" l="ENG"><s1>Crystal growth and spectroscopic analysis of codoped (Ho,Tm):KGd(WO<sub>4</sub>
)<sub>2</sub>
</s1>
</fA08>
<fA11 i1="01" i2="1"><s1>SILVESTRE (O.)</s1>
</fA11>
<fA11 i1="02" i2="1"><s1>PUJOL (M. C.)</s1>
</fA11>
<fA11 i1="03" i2="1"><s1>GÜELL (F.)</s1>
</fA11>
<fA11 i1="04" i2="1"><s1>AGUILO (M.)</s1>
</fA11>
<fA11 i1="05" i2="1"><s1>DIAZ (F.)</s1>
</fA11>
<fA11 i1="06" i2="1"><s1>BRENIER (A.)</s1>
</fA11>
<fA11 i1="07" i2="1"><s1>BOULON (G.)</s1>
</fA11>
<fA14 i1="01"><s1>Física i Cristal-lografia de Materials (FiCMA), Universitat Rovira i Virgili, Campus Sescelades c/Marcel. lí Domingo, s/n</s1>
<s2>43007 Tarragona</s2>
<s3>ESP</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
</fA14>
<fA14 i1="02"><s1>Physico Chimie des Matériaux Luminescents, Université Claude Bernard Lyon 1, UMR 5620 CNRS, Bât. A. Kastler, 10 rue Ampère</s1>
<s2>69622 Villeurbanne</s2>
<s3>FRA</s3>
<sZ>6 aut.</sZ>
<sZ>7 aut.</sZ>
</fA14>
<fA20><s1>111-117</s1>
</fA20>
<fA21><s1>2007</s1>
</fA21>
<fA23 i1="01"><s0>ENG</s0>
</fA23>
<fA43 i1="01"><s1>INIST</s1>
<s2>16194B</s2>
<s5>354000145692230200</s5>
</fA43>
<fA44><s0>0000</s0>
<s1>© 2007 INIST-CNRS. All rights reserved.</s1>
</fA44>
<fA45><s0>49 ref.</s0>
</fA45>
<fA47 i1="01" i2="1"><s0>07-0193319</s0>
</fA47>
<fA60><s1>P</s1>
</fA60>
<fA61><s0>A</s0>
</fA61>
<fA64 i1="01" i2="1"><s0>Applied physics. B, Lasers and optics : (Print)</s0>
</fA64>
<fA66 i1="01"><s0>DEU</s0>
</fA66>
<fC01 i1="01" l="ENG"><s0>We present the crystal growth of monoclinic KGd(WO<sub>4</sub>
)<sub>2</sub>
 codoped with holmium and thulium by a top-seeded solution growth and slow cooling method. Macrodefect-free crystals with sizes about 8.5 x 5 x 12 (a* x b x c, dimensions in mm) were obtained. A complete study of the spectroscopic parameters of the holmium emission <sup>5</sup>
I<sub>7</sub>
 → <sup>5</sup>
I<sub>8,</sub>
 around 2 microns, sensitized by the thulium ion, was made. Polarized absorption measurements were performed to characterize the optimum pumping wavelength in the system. The maximum value of the cross section is 8.0x10<sup>2</sup>
 cm<sup>2</sup>
 with E//Np direction at a wavelength value of 794 nm. The emission cross section of the 2-micron holmium transition has been calculated by the reciprocity method. The experimental lifetime of the <sup>5</sup>
I<sub>7</sub>
 level has been measured in relation to holmium and thulium concentrations.</s0>
</fC01>
<fC02 i1="01" i2="3"><s0>001B80A10D</s0>
</fC02>
<fC02 i1="02" i2="3"><s0>001B40B70H</s0>
</fC02>
<fC03 i1="01" i2="3" l="FRE"><s0>Croissance cristalline en solution</s0>
<s5>31</s5>
</fC03>
<fC03 i1="01" i2="3" l="ENG"><s0>Crystal growth from solutions</s0>
<s5>31</s5>
</fC03>
<fC03 i1="02" i2="3" l="FRE"><s0>Durée vie</s0>
<s5>41</s5>
</fC03>
<fC03 i1="02" i2="3" l="ENG"><s0>Lifetime</s0>
<s5>41</s5>
</fC03>
<fC03 i1="03" i2="3" l="FRE"><s0>Spectre émission</s0>
<s5>42</s5>
</fC03>
<fC03 i1="03" i2="3" l="ENG"><s0>Emission spectra</s0>
<s5>42</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE"><s0>Spectre fluorescence</s0>
<s5>43</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG"><s0>Fluorescence spectrum</s0>
<s5>43</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA"><s0>Espectro fluorescencia</s0>
<s5>43</s5>
</fC03>
<fC03 i1="05" i2="3" l="FRE"><s0>Matériau dopé</s0>
<s5>50</s5>
</fC03>
<fC03 i1="05" i2="3" l="ENG"><s0>Doped materials</s0>
<s5>50</s5>
</fC03>
<fC03 i1="06" i2="3" l="FRE"><s0>Addition thulium</s0>
<s5>51</s5>
</fC03>
<fC03 i1="06" i2="3" l="ENG"><s0>Thulium additions</s0>
<s5>51</s5>
</fC03>
<fC03 i1="07" i2="3" l="FRE"><s0>Potassium tungstate</s0>
<s2>NK</s2>
<s5>52</s5>
</fC03>
<fC03 i1="07" i2="3" l="ENG"><s0>Potassium tungstates</s0>
<s2>NK</s2>
<s5>52</s5>
</fC03>
<fC03 i1="08" i2="3" l="FRE"><s0>Gadolinium tungstate</s0>
<s2>NK</s2>
<s5>53</s5>
</fC03>
<fC03 i1="08" i2="3" l="ENG"><s0>Gadolinium tungstates</s0>
<s2>NK</s2>
<s5>53</s5>
</fC03>
<fC03 i1="09" i2="3" l="FRE"><s0>Composé quaternaire</s0>
<s5>54</s5>
</fC03>
<fC03 i1="09" i2="3" l="ENG"><s0>Quaternary compounds</s0>
<s5>54</s5>
</fC03>
<fC03 i1="10" i2="3" l="FRE"><s0>Matériau optique</s0>
<s5>55</s5>
</fC03>
<fC03 i1="10" i2="3" l="ENG"><s0>Optical materials</s0>
<s5>55</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE"><s0>Codopage</s0>
<s5>57</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG"><s0>Codoping</s0>
<s5>57</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA"><s0>Codrogado</s0>
<s5>57</s5>
</fC03>
<fC03 i1="12" i2="3" l="FRE"><s0>Matériau laser</s0>
<s5>58</s5>
</fC03>
<fC03 i1="12" i2="3" l="ENG"><s0>Laser materials</s0>
<s5>58</s5>
</fC03>
<fC03 i1="13" i2="3" l="FRE"><s0>Holmium</s0>
<s2>NC</s2>
<s5>61</s5>
</fC03>
<fC03 i1="13" i2="3" l="ENG"><s0>Holmium</s0>
<s2>NC</s2>
<s5>61</s5>
</fC03>
<fC03 i1="14" i2="3" l="FRE"><s0>Thulium ion</s0>
<s2>NC</s2>
<s5>62</s5>
</fC03>
<fC03 i1="14" i2="3" l="ENG"><s0>Thulium ions</s0>
<s2>NC</s2>
<s5>62</s5>
</fC03>
<fC03 i1="15" i2="3" l="FRE"><s0>Addition holmium</s0>
<s5>63</s5>
</fC03>
<fC03 i1="15" i2="3" l="ENG"><s0>Holmium additions</s0>
<s5>63</s5>
</fC03>
<fC03 i1="16" i2="X" l="FRE"><s0>Cristal monoclinique</s0>
<s5>64</s5>
</fC03>
<fC03 i1="16" i2="X" l="ENG"><s0>Monoclinic crystals</s0>
<s5>64</s5>
</fC03>
<fC03 i1="16" i2="X" l="SPA"><s0>Cristal monoclínico</s0>
<s5>64</s5>
</fC03>
<fC03 i1="17" i2="3" l="FRE"><s0>Tm:KGd(WO4)2</s0>
<s4>INC</s4>
<s5>71</s5>
</fC03>
<fC03 i1="18" i2="3" l="FRE"><s0>KGd(WO4)2</s0>
<s4>INC</s4>
<s5>72</s5>
</fC03>
<fC03 i1="19" i2="3" l="FRE"><s0>Gd K O W</s0>
<s4>INC</s4>
<s5>75</s5>
</fC03>
<fC03 i1="20" i2="3" l="FRE"><s0>8110D</s0>
<s4>INC</s4>
<s5>83</s5>
</fC03>
<fC03 i1="21" i2="3" l="FRE"><s0>4270H</s0>
<s4>INC</s4>
<s5>84</s5>
</fC03>
<fN21><s1>128</s1>
</fN21>
</pA>
</standard>
<server><NO>PASCAL 07-0193319 INIST</NO>
<ET>Crystal growth and spectroscopic analysis of codoped (Ho,Tm):KGd(WO<sub>4</sub>
)<sub>2</sub>
</ET>
<AU>SILVESTRE (O.); PUJOL (M. C.); GÜELL (F.); AGUILO (M.); DIAZ (F.); BRENIER (A.); BOULON (G.)</AU>
<AF>Física i Cristal-lografia de Materials (FiCMA), Universitat Rovira i Virgili, Campus Sescelades c/Marcel. lí Domingo, s/n/43007 Tarragona/Espagne (1 aut., 2 aut., 3 aut., 4 aut., 5 aut.); Physico Chimie des Matériaux Luminescents, Université Claude Bernard Lyon 1, UMR 5620 CNRS, Bât. A. Kastler, 10 rue Ampère/69622 Villeurbanne/France (6 aut., 7 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Applied physics. B, Lasers and optics : (Print); ISSN 0946-2171; Allemagne; Da. 2007; Vol. 87; No. 1; Pp. 111-117; Bibl. 49 ref.</SO>
<LA>Anglais</LA>
<EA>We present the crystal growth of monoclinic KGd(WO<sub>4</sub>
)<sub>2</sub>
 codoped with holmium and thulium by a top-seeded solution growth and slow cooling method. Macrodefect-free crystals with sizes about 8.5 x 5 x 12 (a* x b x c, dimensions in mm) were obtained. A complete study of the spectroscopic parameters of the holmium emission <sup>5</sup>
I<sub>7</sub>
 → <sup>5</sup>
I<sub>8,</sub>
 around 2 microns, sensitized by the thulium ion, was made. Polarized absorption measurements were performed to characterize the optimum pumping wavelength in the system. The maximum value of the cross section is 8.0x10<sup>2</sup>
 cm<sup>2</sup>
 with E//Np direction at a wavelength value of 794 nm. The emission cross section of the 2-micron holmium transition has been calculated by the reciprocity method. The experimental lifetime of the <sup>5</sup>
I<sub>7</sub>
 level has been measured in relation to holmium and thulium concentrations.</EA>
<CC>001B80A10D; 001B40B70H</CC>
<FD>Croissance cristalline en solution; Durée vie; Spectre émission; Spectre fluorescence; Matériau dopé; Addition thulium; Potassium tungstate; Gadolinium tungstate; Composé quaternaire; Matériau optique; Codopage; Matériau laser; Holmium; Thulium ion; Addition holmium; Cristal monoclinique; Tm:KGd(WO4)2; KGd(WO4)2; Gd K O W; 8110D; 4270H</FD>
<ED>Crystal growth from solutions; Lifetime; Emission spectra; Fluorescence spectrum; Doped materials; Thulium additions; Potassium tungstates; Gadolinium tungstates; Quaternary compounds; Optical materials; Codoping; Laser materials; Holmium; Thulium ions; Holmium additions; Monoclinic crystals</ED>
<SD>Espectro fluorescencia; Codrogado; Cristal monoclínico</SD>
<LO>INIST-16194B.354000145692230200</LO>
<ID>07-0193319</ID>
</server>
</inist>
</record>

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Crystal growth and spectroscopic analysis of codoped (Ho,Tm):KGd(WO4)2

Crystal growth and spectroscopic analysis of codoped (Ho,Tm):KGd(WO4)2

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