SiO2-SnO2: Er3+ glass-ceramic monoliths

Lam Thi Ngoc Tran, Damiano Massella, Lidia Zur, Alessandro Chiasera, Stefano Varas, Cristina Armellini, Giancarlo C. Righini, Anna Lukowiak, Daniele Zonta, Maurizio Ferrari

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Abstract

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.

Original languageEnglish
Article number1335
Number of pages8
JournalApplied Sciences (Switzerland)
Volume8
Issue number8
DOIs
Publication statusPublished - 10 Aug 2018

Keywords

  • erbium
  • luminescence sensitizer
  • SiO-SnO
  • Sol-gel
  • time-resolved spectroscopy
  • transparent glass-ceramics

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    Tran, L. T. N., Massella, D., Zur, L., Chiasera, A., Varas, S., Armellini, C., Righini, G. C., Lukowiak, A., Zonta, D., & Ferrari, M. (2018). SiO2-SnO2: Er3+ glass-ceramic monoliths. Applied Sciences (Switzerland), 8(8), [1335]. https://doi.org/10.3390/app8081335