title: Efficient Nd(3+)-->Yb(3+) energy transfer in 0.8CaSiO(3)-0.2Ca(3)(PO(4))(2) eutectic glass.
abstract: In this work we report the study of energy transfer between Nd(3+) and Yb(3+) ions in glasses with the 0.8CaSiO(3)-0.2Ca(3)(PO(4))(2) eutectic composition at room temperature by using steady-state and time-resolved laser spectroscopy. The Nd(3+)?Yb(3+) transfer efficiency obtained from the Nd(3+) lifetimes in the single doped and codoped samples reaches 73% for the highest Nd(3+) concentration. The donor decay curves obtained under pulsed excitation have been used to establish the multipolar nature of the Nd(3+)-->Yb(3+) transfer process and the energy transfer microparameter. The nonradiative energy transfer is consistent with an electric dipole-dipole interaction mechanism assisted by energy migration among donors. Back transfer from Yb(3+) to Nd(3+) is also observed.
authors.affiliation: Departamento Física Aplicada I, Escuela Superior de Ingeniería, Alda. Urquijo s/n Bilbao, Spain. wupbacrr@bi.ehu.es
authors.forename: Rolindes
authors.initials: R
authors.lastname: Balda
authors.forename: Jose Ignacio
authors.initials: JI
authors.lastname: Peña
authors.forename: M Angeles
authors.initials: MA
authors.lastname: Arriandiaga
authors.forename: Joaquín
authors.initials: J
authors.lastname: Fernández
mesh_terms: D002118:Calcium / Q000737:chemistry; D017610:Calcium Compounds / Q000737:chemistry; D002516:Ceramics / Q000737:chemistry; D004735:Energy Transfer; D005453:Fluorescence; D005898:Glass / Q000737:chemistry*; D007834:Lasers; D008027:Light; D049449:Luminescence; D008962:Models, Theoretical; D009354:Neodymium / Q000737:chemistry*; D055095:Optics and Photonics / Q000379:methods*; D010710:Phosphates / Q000737:chemistry; D017640:Silicates / Q000737:chemistry; D013696:Temperature; D015018:Ytterbium / Q000737:chemistry*
chemical_list: D017610:Calcium Compounds; D010710:Phosphates; D017640:Silicates; D009354:Neodymium; D015018:Ytterbium; C031293:calcium silicate; D002118:Calcium