title: Micro-Raman characterization of Zn-diffused channel waveguides in Tm(3+):LiNbO(3).
abstract: In this work micro-Raman scattering experiments have been performed in LiNbO(3):Tm(3+) samples with waveguides fabricated by Zn(2+) in-diffusion. The results shown that Zn(2+) ions enter the lattice in Li(+) sites, but also in interstitial positions. This produces a compaction of the lattice close to the surface of the sample, generating the waveguide. It is shown that this region is surrounded by a different area in which the lattice is relaxed to recover the characteristic lattice parameters of LiNbO(3):Tm(3+).
authors.affiliation: Departamento de Física de Materiales (Módulo 04), Universidad Autónoma de Madrid, Avda. Francisco Tomás yValiente 7. 28049 Madrid, Spain. marta.quintanilla@uam.es
authors.forename: Marta
authors.initials: M
authors.lastname: Quintanilla
authors.forename: Emma Martín
authors.initials: EM
authors.lastname: Rodríguez
authors.forename: Eugenio
authors.initials: E
authors.lastname: Cantelar
authors.forename: Fernando
authors.initials: F
authors.lastname: Cussó
authors.forename: Concepción
authors.initials: C
authors.lastname: Domingo
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D009556:Niobium / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry*; D012031:Refractometry / Q000295:instrumentation* / Q000379:methods*; D013059:Spectrum Analysis, Raman / Q000295:instrumentation* / Q000379:methods*; D015032:Zinc / Q000737:chemistry*
chemical_list: D010087:Oxides; D009556:Niobium; C091692:lithium niobate; D015032:Zinc