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., et al.. - 12142:(2022). (Fiber Lasers and Glass Photonics: Materials through Applications III 2022 Strasbourg 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
