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Proceedings Paper

Photonic glass ceramics based on SnO2 nanocrystals: advances and perspectives
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Paper Abstract

SnO2-based glass-ceramics activated by rare earth ions have been extensively investigated because of the need to develop reliable fabrication protocols and clarify some interesting optical, structural, and spectroscopic features of the system. There is one important weakness in glass photonics when the rare earth ions are employed as luminescent sources. This is the low absorption cross section of the electronic states of the rare earth ions. A sensitizer is therefore requested. In the last years, we demonstrated that SiO2-SnO2 glass ceramics, presenting a strong absorption cross section in the UV range due to the SnO2 nanocrystal, are effective rare earth ions sensitizers. Another interesting property of the SiO2-SnO2 system is its photorefractivity. The high photorefractivity of sol-gel-derived SnO2-SiO2 glass-ceramic waveguides has been demonstrated in several papers published by our consortium. It has been shown that the UV irradiation induces refractive index change allowing the direct writing of both channel waveguides and Bragg gratings.

The results presented in this communication not only demonstrate the viability and outstanding properties of the SiO2- SnO2 glass-ceramics for photonic applications but also put the basis for the fabrication of solid state and integrated lasers. The next steps of the research are the fabrication of the channels and mirrors exploiting the photorefractivity as well as to draw glass ceramic fiber, checking the lasing action and corresponding functional characteristics. Finally, it is worth noting that the dynamic of the energy transfer from the nanocrystals to the rare earth ions is still an exciting open question.

Paper Details

Date Published: 3 March 2020
PDF: 9 pages
Proc. SPIE 11276, Optical Components and Materials XVII, 1127614 (3 March 2020); doi: 10.1117/12.2547526
Show Author Affiliations
Lam Thi Ngoc Tran, Ho Chi Minh City Univ. of Technology and Education (Viet Nam)
Cristina Armellini, IFN-CNR CSMFO Lab. and FBK Photonics Unit (Italy)
Rolindes Balda, Univ. del País Vasco UPV-EHU (Spain)
Materials Physics Ctr. CSIC-UPV/EHU (Spain)
Mourad Benabdesselam, Univ. Côte d'Azur, Institut de Physique de Nice, CNRS (France)
Simone Berneschi, IFAC-CNR (Italy)
Wilfried Blanc, Univ. Côte d'Azur, Institut de Physique de Nice, CNRS (France)
Brigitte Boulard, IMMM, CNRS, Univ. du Maine (France)
Alessandro Carpentiero, IFN-CNR CSMFO Lab. and FBK Photonics Unit (Italy)
Andrea Chiappini, IFN-CNR CSMFO Lab. and FBK Photonics Unit (Italy)
Alessandro Chiasera, IFN-CNR CSMFO Lab. and FBK Photonics Unit (Italy)
Paola Dentella, Politecnico di Milano (Italy)
Dominik Dorosz, AGH Univ. of Science and Technology (Poland)
Shane Eaton, Politecnico di Milano (Italy)
Mario Christian Falconi, Politecnico di Bari (Italy)
Joaquin Fernandez, Donostia International Physics Ctr. DIPC (Spain)
Maurizio Ferrari, IFN-CNR CSMFO Lab. and FBK Photonics Unit (Italy)
Museo Storico della Fisica e Ctr. Studi e Ricerche "Enrico Fermi" (Italy)
James Gates, Univ. of Southampton (United Kingdom)
Pawel Gluchowski, Institute of Low Temperature and Structure Research (Poland)
Gloria Ischia, Univ. of Trento (Italy)
Anna Lukowiak, Institute of Low Temperature and Structure Research (Poland)
Franck Mady, Univ. Côte d'Azur, Institut de Physique de Nice, CNRS (France)
Damiano Massella, Univ. of Vigo (Spain)
Gualtiero Nunzi Conti, IFAC-CNR (Italy)
Francesco Prudenzano, Politecnico di Bari (Italy)
Barbara Rossi, Elettra-Sincrotrone Trieste (Italy)
Roberta Ramponi, IFN-CNR (Italy)
Politecnico di Milano (Italy)
Giancarlo C. Righini, Museo Storico della Fisica e Ctr. Studi e Ricerche "Enrico Fermi" (Italy)
IFAC-CNR (Italy)
Pier-John Sazio, Univ. of Southampton (United Kingdom)
Giorgio Speranza, FBK CMM (Italy)
Stefano Varas, IFN-CNR CSMFO Lab. and FBK Photonics Unit (Italy)
Daniele Zonta, Univ. of Trento (Italy)
Univ. of Strathclyde (United Kingdom)
IFN-CNR CSMFO Lab. and FBK Photonics Unit (Italy)
Lidia Zur, IFN-CNR CSMFO Lab. and FBK Photonics Unit (Italy)


Published in SPIE Proceedings Vol. 11276:
Optical Components and Materials XVII
Shibin Jiang; Michel J. F. Digonnet, Editor(s)

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