We present an observation of the photoluminescence features introduced by Sn doping in the SiO2:Ge core of an optical fiber preform, excited in the vacuum-ultraviolet energy region by synchrotron radiation. Detailed measurements as a function of the excitation energy indicate the presence of two specific emissions around 3.5 and 3.7 eV related to two excitation channels at 5.7 and 5.9 eV, underlying an absorption band centered at about 6 eV. These data put in evidence the capability of Sn to introduce specific optically active defect configurations, contrary to Ge, which mainly introduces perturbations on otherwise intrinsic oxygen-deficient-center sites.

Martini, M., Meinardi, F., Paleari, A., Spinolo, G., Vedda, A., DI MARTINO, D., et al. (1997). Sn codoping effects on the photoluminescence of SiO2:Ge. PHYSICAL REVIEW. B, CONDENSED MATTER, 55(23), 15375-15377 [10.1103/PhysRevB.55.15375].

Sn codoping effects on the photoluminescence of SiO2:Ge

MARTINI, MARCO;MEINARDI, FRANCESCO;PALEARI, ALBERTO MARIA FELICE;SPINOLO, GIORGIO MARIO;VEDDA, ANNA GRAZIELLA;DI MARTINO, DANIELA;
1997

Abstract

We present an observation of the photoluminescence features introduced by Sn doping in the SiO2:Ge core of an optical fiber preform, excited in the vacuum-ultraviolet energy region by synchrotron radiation. Detailed measurements as a function of the excitation energy indicate the presence of two specific emissions around 3.5 and 3.7 eV related to two excitation channels at 5.7 and 5.9 eV, underlying an absorption band centered at about 6 eV. These data put in evidence the capability of Sn to introduce specific optically active defect configurations, contrary to Ge, which mainly introduces perturbations on otherwise intrinsic oxygen-deficient-center sites.
Articolo in rivista - Articolo scientifico
silica; tin doping; photoluminescence
English
15375
15377
3
Martini, M., Meinardi, F., Paleari, A., Spinolo, G., Vedda, A., DI MARTINO, D., et al. (1997). Sn codoping effects on the photoluminescence of SiO2:Ge. PHYSICAL REVIEW. B, CONDENSED MATTER, 55(23), 15375-15377 [10.1103/PhysRevB.55.15375].
Martini, M; Meinardi, F; Paleari, A; Spinolo, G; Vedda, A; DI MARTINO, D; Negrisolo, F
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/32309
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