Enhanced photorefractivity and rare-earth photoluminescence in SnO2 nanocrystals-based photonic glass-ceramics
| Autor: | Lam Tran Thi Ngoc, Szczurek Anna, Varas Stefano, Armellini Cristina, Carpentiero Alessandro, Chiappini Andrea, Iacob Erica, Ischia Gloria, Berneschi Simone, Conti Gualtiero Nunzi, Bollani Monica, Scotognella Francesco, Righini Giancarlo C., Głuchowski Paweł, Chiasera Alessandro, Lukowiak Anna, Ferrari Maurizio |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | EPJ Web of Conferences, Vol 255, p 05001 (2021) |
| Druh dokumentu: | article |
| ISSN: | 2100-014X 20212550 |
| DOI: | 10.1051/epjconf/202125505001 |
| Popis: | This work presents state of the art rare-earth activated SnO2 nanocrystals - based transparent glass-ceramics. With combined enhancements in both photorefractivity and rare-earth photoluminescence, the glass-ceramic has unique benefits as a lasing material. It exhibits high photorefractivity with UV induced refractive index modifications in the order of 10-3. Exploiting its high photorefractivity, optical gratings are fabricated on the glass-ceramic under an energy-efficient direct UV writing process. Furthermore, SnO2 semiconductor nanocrystals are also employed as efficient rare-earth sensitizers enhancing drastically the rare-earth photoluminescence. |
| Databáze: | Directory of Open Access Journals |
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