Investigations of new materials possessing both higher Raman gain and larger spectral bandwidth than fused silica are becoming mandatory in order to satisfy increasing telecommunications demands. Herein, silica-niobia based glasses have been prepared and characterised by ellipsometry and Raman spectroscopy. A fine glass structural characterization of bulk system has been performed and the Raman gain has been calculated. Our silica-based glass system (K2O-Nb2O5-SiO2 (KNS)) provides via thermal treatment a nanocomposite material of easy and cheap fabrication. In our glass composition a strong Raman gain (up to 30 times than fused silica) and a large bandwidth have been measured, and demonstrated to be related to nanostructured material domains.
Raman gain in a niobiosilicate glasses / L., Sirleto; Pernice, Pasquale; Vergara, Alessandro; Aronne, Antonio; Fanelli, Esther; G. C., Righini. - ELETTRONICO. - (2012), pp. 22-22. (Intervento presentato al convegno 14th International Conference on Transparent Optical Networks tenutosi a Coventry, England nel July 2 – 5, 2012).
Raman gain in a niobiosilicate glasses
PERNICE, PASQUALE;VERGARA, ALESSANDRO;ARONNE, ANTONIO;FANELLI, Esther;
2012
Abstract
Investigations of new materials possessing both higher Raman gain and larger spectral bandwidth than fused silica are becoming mandatory in order to satisfy increasing telecommunications demands. Herein, silica-niobia based glasses have been prepared and characterised by ellipsometry and Raman spectroscopy. A fine glass structural characterization of bulk system has been performed and the Raman gain has been calculated. Our silica-based glass system (K2O-Nb2O5-SiO2 (KNS)) provides via thermal treatment a nanocomposite material of easy and cheap fabrication. In our glass composition a strong Raman gain (up to 30 times than fused silica) and a large bandwidth have been measured, and demonstrated to be related to nanostructured material domains.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
