1. SiO2-SnO2:Er3+ Glass-Ceramic Monoliths.
- Author
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Tran, Lam Thi Ngoc, Massella, Damiano, Zur, Lidia, Chiasera, Alessandro, Varas, Stefano, Armellini, Cristina, Righini, Giancarlo C., Lukowiak, Anna, Zonta, Daniele, and Ferrari, Maurizio
- Subjects
SILICON oxide ,RARE earth ions ,GLASS-ceramics - Abstract
Featured Application: The goal of this work is to demonstrate: (1) a reliable fabrication protocol of monolithic SiO
2 -SnO2 :Er3+ glass-ceramics and (2) the luminescence efficiency of this system. Based on these fundamental results, we are working on developing a proof of concept of a solid-state laser with lateral pumping as drawn below. The development of efficient luminescent systems, such as microcavities, solid-state lasers, integrated optical amplifiers, and optical sensors is the main topic in glass photonics. The building blocks of these systems are glass-ceramics activated by rare-earth ions because they exhibit specific morphologic, structural, and spectroscopic properties. Among various materials that could be used as nanocrystals to be imbedded in a silica matrix, tin dioxide presents some interesting peculiarities, e.g., the presence of tin dioxide nanocrystals allows an increase in both solubility and emission of rare-earth ions. Here, we focus our attention on Er3+ —doped silica—tin dioxide photonic glass-ceramics fabricated by a sol-gel route. Although the SiO2 -SnO2 :Er3+ could be fabricated in different forms, such as thin films, monoliths, and planar waveguides, we herein limit ourselves to the monoliths. The effective role of tin dioxide as a luminescence sensitizer for Er3+ ions is confirmed by spectroscopic measurements and detailed fabrication protocols are discussed. [ABSTRACT FROM AUTHOR]- Published
- 2018
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