000168437 001__ 168437
000168437 005__ 20260205155159.0
000168437 0247_ $$2doi$$a10.3390/jfb17010038
000168437 0248_ $$2sideral$$a147899
000168437 037__ $$aART-2026-147899
000168437 041__ $$aeng
000168437 100__ $$0(orcid)0000-0002-5998-2251$$aSola, Daniel
000168437 245__ $$aPolarization Dependence on the Optical Emission in Nd-Doped Bioactive W-TCP Coatings
000168437 260__ $$c2026
000168437 5060_ $$aAccess copy available to the general public$$fUnrestricted
000168437 5203_ $$aNeodymium-doped bioactive wollastonite–tricalcium phosphate (W-TCP:Nd) coatings were fabricated by combining dip-coating and laser floating zone (LFZ) techniques to investigate the dependence of optical emission on polarization. Structural and spectroscopic analyses were performed on both longitudinal and transversal sections of the coating to assess the effects of directional solidification on luminescence and vibrational behavior. Micro-Raman spectroscopy revealed that the coating exhibited sharp, well-defined peaks compared to the W-TCP:Nd glass, confirming its glass-ceramic nature. New Raman modes appeared in the longitudinal section, accompanied by red and blue shifts in some bands relative to the transversal section, suggesting the presence of anisotropic stress and orientation-dependent crystal growth. Optical emission measurements showed that while the 4F3/2→4I11/2 transition near 1060 nm was nearly polarization independent, the 4F3/2→4I9/2 transition around 870–900 nm exhibited strong polarization dependence with notable Stark splitting. The relative intensity and spectral position of the Stark components varied systematically with the rotation of the emission polarization. These findings demonstrate that directional solidification induces polarization-dependent optical behavior, indicating potential applications for polarization-sensitive optical tracking and sensing in bioactive implant coatings.
000168437 536__ $$9info:eu-repo/grantAgreement/ES/DGA/T02-23R
000168437 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es
000168437 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000168437 700__ $$aChueca, Eloy
000168437 700__ $$0(orcid)0000-0003-2242-6822$$aPeña, José Ignacio$$uUniversidad de Zaragoza
000168437 7102_ $$15001$$2065$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Cienc.Mater. Ingen.Metal.
000168437 773__ $$g17, 38 (2026), 11$$pJ. funct. biomater.$$tJournal of Functional Biomaterials$$x2079-4983
000168437 8564_ $$s1724460$$uhttps://zaguan.unizar.es/record/168437/files/texto_completo.pdf$$yVersión publicada
000168437 8564_ $$s2357398$$uhttps://zaguan.unizar.es/record/168437/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000168437 909CO $$ooai:zaguan.unizar.es:168437$$particulos$$pdriver
000168437 951__ $$a2026-02-05-14:36:34
000168437 980__ $$aARTICLE