Comparison between upconversion response of $E{r}^{3+}$ sensitised with $Y{b}^{3+}$ in various oxidic ceramic hosts

Liviu Dudas, Daniela Berger, Cristian Matei

The upconversion process for the $E{r}^{3+}$ ion, when irradiated with IR photons at 980 nm, strongly depends upon the presence of the sensitizer $Y{b}^{3+}$ ions. There are many studi…