000058525 001__ 58525
000058525 005__ 20170503143437.0
000058525 0247_ $$2doi$$a10.1364/OE.20.010701
000058525 0248_ $$2sideral$$a77363
000058525 037__ $$aART-2012-77363
000058525 041__ $$aeng
000058525 100__ $$aSola, D.
000058525 245__ $$aSite-selective laser spectroscopy of Nd 3+ ions in 0.8CaSiO 3-0.2Ca 3(PO 4) 2 biocompatible eutectic glass-ceramics
000058525 260__ $$c2012
000058525 5060_ $$aAccess copy available to the general public$$fUnrestricted
000058525 5203_ $$aIn this work we report the influence of the crystallization stage of the host matrix on the spectroscopic properties of Nd3+ ions in biocompatible glass-ceramic eutectic rods of composition 0.8CaSiO3-0.2Ca3(PO4)2 doped with 1 and 2 wt% of Nd2O3. The samples were obtained by the laser floating zone technique at different growth rates between 50 and 500 mm/h. The microstructural analysis shows that a growth rate increase or a rod diameter decrease leads the system to a structural arrangement from three (two crystalline and one amorphous) to two phases (one crystalline and one amorphous). Electron backscattering diffraction analysis shows the presence of Ca2SiO4 and apatite-like crystalline phases. Site-selective laser spectroscopy in the 4I9/2¿4F3/2/4F5/2 transitions confirms that Nd3+ ions are incorporated in crystalline and amorphous phases in these glass-ceramic samples. In particular, the presence of Ca2SiO4 crystalline phase in the samples grown at low rates, which has an excellent in vitro bioactivity, can be unambiguously identified from the excitation spectra and lifetime measurements of the 4F3/2 state of Nd3+ ions.
000058525 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/CSD2007-00013$$9info:eu-repo/grantAgreement/ES/MINECO/FIS2011-27968$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2009-13979-C03-03$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2009-14282-C02-02
000058525 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000058525 590__ $$a3.546$$b2012
000058525 591__ $$aOPTICS$$b4 / 79 = 0.051$$c2012$$dQ1$$eT1
000058525 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000058525 700__ $$aBalda, R.
000058525 700__ $$0(orcid)0000-0003-2242-6822$$aPeña, J.I.$$uUniversidad de Zaragoza
000058525 700__ $$aFernández, J.
000058525 7102_ $$15001$$2065$$aUniversidad de Zaragoza$$bDepartamento de Ciencia y Tecnología de Materiales y Fluidos$$cCiencia de los Materiales e Ingeniería Metalúrgica
000058525 773__ $$g20, 10 (2012), 10701-10711$$pOpt. express$$tOPTICS EXPRESS$$x1094-4087
000058525 8564_ $$s409291$$uhttp://zaguan.unizar.es/record/58525/files/texto_completo.pdf$$yVersión publicada
000058525 8564_ $$s80771$$uhttp://zaguan.unizar.es/record/58525/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000058525 909CO $$ooai:zaguan.unizar.es:58525$$particulos$$pdriver
000058525 951__ $$a2017-05-03-14:31:43
000058525 980__ $$aARTICLE