We present fabrication and spectroscopic assessment of sol-gel derived SiO2-SnO2 glass-ceramic waveguides, uniformly doped with 1 mol% Eu3+. Using a top-down technique, based on appropriate thermal process, nanocrystals of SnO2 were nucleated in the glassy matrix. Spectroscopic investigations reveal the evolution towards a centro-symmetric local environment around the Eu3+ ion in the matrix. These glass-ceramic waveguides exhibit low-losses of 0.8 ± 0.2 dB/cm at 632.8 nm.
Fabrication and spectroscopic assessment of sol-gel derived SiO2-SnO2 glass-ceramics planar waveguides
A Chiappini;AChiasera;M Ferrari;
2008
Abstract
We present fabrication and spectroscopic assessment of sol-gel derived SiO2-SnO2 glass-ceramic waveguides, uniformly doped with 1 mol% Eu3+. Using a top-down technique, based on appropriate thermal process, nanocrystals of SnO2 were nucleated in the glassy matrix. Spectroscopic investigations reveal the evolution towards a centro-symmetric local environment around the Eu3+ ion in the matrix. These glass-ceramic waveguides exhibit low-losses of 0.8 ± 0.2 dB/cm at 632.8 nm.File in questo prodotto:
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