In this work, we present preliminary results of the fabrication and characterization of 1D Fabry-Perot microcavity realized on Yb3+ activated SiO2-SnO2 glass-ceramic (SiO2-SnO2:Yb3+). A radiofrequency-sputtering/sol-gel hybrid deposition process was developed for the microcavity fabrication. The fabrication included (i) radiofrequency-sputtering (rf-sputtering) of SiO2/HfO2 Bragg reflectors and (ii) sol-gel deposition of the active SiO2-SnO2:Yb3+ defect layer. A good control and enhancement of the spontaneous emission for Yb3+ luminescence sensitized by SnO2 nanocrystals was achieved exploiting microcavity properties. Such results are valuable for development of low-threshold rare-earth-based coherent light sources, pumped by broadband UV diodes.
Photon management in SiO2-SnO2:Yb3+ hybrid 1D microcavity / Tran, T. N. L.; Szczurek, A.; Carlotto, A.; Cian, A.; Varas, S.; Iacob, E.; Ischia, G.; Sayginer, O.; Berneschi, S.; Conti, G. N.; Balda, R.; Fernandez, J.; Righini, G. C.; Bollani, M.; Scotognella, F.; Zonta, D.; Bursi, O.; Gluchowski, P.; Lukowiak, A.; Ferrari, M.; Chiasera, A.. - 12142:(2022). (Intervento presentato al convegno Fiber Lasers and Glass Photonics: Materials through Applications III 2022 tenutosi a Strasbourg nel 2022) [10.1117/12.2620624].
Photon management in SiO2-SnO2:Yb3+ hybrid 1D microcavity
Tran T. N. L.;Sayginer O.;Zonta D.;Bursi O.;Ferrari M.;Chiasera A.
2022-01-01
Abstract
In this work, we present preliminary results of the fabrication and characterization of 1D Fabry-Perot microcavity realized on Yb3+ activated SiO2-SnO2 glass-ceramic (SiO2-SnO2:Yb3+). A radiofrequency-sputtering/sol-gel hybrid deposition process was developed for the microcavity fabrication. The fabrication included (i) radiofrequency-sputtering (rf-sputtering) of SiO2/HfO2 Bragg reflectors and (ii) sol-gel deposition of the active SiO2-SnO2:Yb3+ defect layer. A good control and enhancement of the spontaneous emission for Yb3+ luminescence sensitized by SnO2 nanocrystals was achieved exploiting microcavity properties. Such results are valuable for development of low-threshold rare-earth-based coherent light sources, pumped by broadband UV diodes.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione
