SiO2-K2O-MgO vitreous films doped with erbium and silver nanoparticles for optical applications

MARÍA VIRGINIA ROLDÁN; NORA S. PELLEGRI; OSCAR A. DESANCTIS

Bahia-Brasil

Congreso; International Congress on Glass 2010; 2010

The search for new glass compositions for films produced with high optical transparent throughout the visible spectrum from 0.5 µm to the near infrared is important for wave guiding materials. On the other hand, Er3+-doped waveguides are fabricated for integrated optic amplifiers, but the increase of Er concentration has a cut-off due to the strengthening of the ion-ion interaction. The co-doping of planar wave-guides (sol-gel films) with Er3+ and Ag0 nanoparticles is a way to avoid this inconvenient. µm to the near infrared is important for wave guiding materials. On the other hand, Er3+-doped waveguides are fabricated for integrated optic amplifiers, but the increase of Er concentration has a cut-off due to the strengthening of the ion-ion interaction. The co-doping of planar wave-guides (sol-gel films) with Er3+ and Ag0 nanoparticles is a way to avoid this inconvenient. The aim is to reinforce the fluorescence intensity by a resonant phenomenon between Er3+ and Ag0 nanoparticles, and the dielectric effect of the matrix. In this work we present the preparation of SiO2-K2O-MgO vitreous sol-gel films to produce planar wave guides. The silver quantum dots were synthesized in continuous media by chemical reduction and isolation from media by anchoring chemical solution-compatible modifiers on their surfaces. We present the study of the preparation process and characterization of sol-gel matrices doped with Ag0 nanoparticles and Er3+ analyzing the role of the synthesis parameters and the optical properties, and comparing with other waveguide compositions such as PLZT and SiO2-B2O3 We present the study of the preparation process and characterization of sol-gel matrices doped with Ag0 nanoparticles and Er3+ analyzing the role of the synthesis parameters and the optical properties, and comparing with other waveguide compositions such as PLZT and SiO2-B2O3 We present the study of the preparation process and characterization of sol-gel matrices doped with Ag0 nanoparticles and Er3+ analyzing the role of the synthesis parameters and the optical properties, and comparing with other waveguide compositions such as PLZT and SiO2-B2O3