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Anisotropy of the spectroscopic, optical and thermo-mechanical properties of Li6Eu1-xGdx(BO3)3 crystals optimized for heat-scintillation cryogenic bolometers

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
hal.structure.identifierUniversité des Sciences et de la Technologie Houari Boumediene = University of Sciences and Technology Houari Boumediene [Alger] [USTHB]
hal.structure.identifierUniversité M'Hamed Bougara Boumerdes [UMBB]
dc.contributor.authorBELHOUCIF, Rekia
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorVELÁZQUEZ, Matias
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorPETIT, Yannick
hal.structure.identifierCentre de Sciences Nucléaires et de Sciences de la Matière [CSNSM]
dc.contributor.authorPLANTEVIN, Olivier
hal.structure.identifierFederal University of Sergipe = Université fédérale de Sergipe [UFS]
dc.contributor.authorCOUTO DOS SANTOS, Marcos A.
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorADAMIETZ, Frédéric
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorRODRIGUEZ, Vincent
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorCOUZI, Michel
hal.structure.identifierLaboratoire de cristallographie et sciences des matériaux [CRISMAT]
dc.contributor.authorPÉREZ, Olivier
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorVIRAPHONG, Oudomsack
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorVEBER, Philippe
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDENUX, Dominique
hal.structure.identifierCentre de Recherche en Technologie des Semiconducteurs pour l’Energétique (CRTSE)
dc.contributor.authorOUADJAOUT, Djamel
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorDECOURT, Rodolphe
dc.date.issued2014
dc.identifier.issn2159-3930
dc.description.abstractEnOptical, spectroscopic and thermo-mechanical properties of monoclinic Li6Eu1-xGdx(BO3)3 (x = 0,0.25,0.35) bulk single crystals, grown to be used in the design of heat-scintillation cryogenic bolometers (HSCBs), were investigated. The linear thermal expansion was determined along the a, b, c and c* directions over the temperature range 303–873 K, and its tensor principal coefficients were calculated for both x = 0.25 and x = 0. In addition, the anisotropic thermal conductivity was measured over the temperature range 20-400 K in Li6Eu0.75Gd0.25(BO3)3 (LGEB7, x = 0.25), and the principal components of its tensor at 300 K were established. Spectroscopic properties such as polarized absorption, polarized emission, Raman spectroscopy and optical refractive indices are also reported for the first time. Based on the polarized emission spectra, the line and oscillator strengths, the radiative lifetimes and fluorescent branching ratios were obtained. The intensity parameters Ωλ (λ = 2,4) were obtained and then predicted via the Judd–Ofelt theory. The crystal field parameters and the 7F1 level splitting were discussed using the simple overlap model (SOM) and the method of equivalent nearest neighbours (MENN). The 613 nm emission originates from the 5D0→7F2 transition and the associated stimulated emission peak cross section reaches its maximum value in π-polarization, ≈1.07 × 10−20 cm2 in LGEB7. The thermo-mechanical characterizations and spectroscopic analysis in LGEB7 suggest that this crystal has better optical properties than the Eu3+-doped Li6Y(BO3)3 crystals. However, its potential for solid-state laser applications is still quite speculative, unless a clever thermo-mechanical management of the crystal under laser operation is designed.
dc.language.isoen
dc.publisherOSA pub
dc.subject.enThermal-properties
dc.subject.enField parameters
dc.subject.enEnergy-transfer
dc.subject.enSingle-crystas
dc.subject.enSimple overlap model
dc.subject.enExpansion
dc.subject.enAbsorption
dc.subject.enFluorescence
dc.subject.enLuminescence
dc.subject.enGrowth
dc.subject.enOCIS codes: (0406070) Solid state detectors
dc.subject.en(1204530) Optical constants
dc.subject.en(1403380) Laser materials
dc.subject.en(1405680) Rare earth and transition metal solid-state lasers
dc.title.enAnisotropy of the spectroscopic, optical and thermo-mechanical properties of Li6Eu1-xGdx(BO3)3 crystals optimized for heat-scintillation cryogenic bolometers
dc.typeArticle de revue
dc.identifier.doi10.1364/OME.4.002042
dc.subject.halChimie/Matériaux
bordeaux.journalOptical Materials Express
bordeaux.page2042-2065
bordeaux.volume4
bordeaux.issue10
bordeaux.peerReviewedoui
hal.identifierhal-01108446
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01108446v1
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