Er3+-activated nanocomposite photonic glasses and confined structures

This paper reports about recent advances in optical nanomaterials and planar microcavities. Bottom-up fabrication, optical and spectroscopic assessment of Er3+-activated SiO2–HfO2 waveguide glass ceramic are presented. Concerning confined structures, the rf sputtering based fabrication of an Er3+-activated microcavity with a quality factor of 171 using oxide-based dielectric materials is demonstrated.