Tailoring Er3+ Spectroscopic Properties by Nanocomposite Photonic Glasses and Confined Structures

Paper reports recent advances in optical nanomaterials, planar microcavity, and spherical microresonators. Bottom-up fabrication and optical assessment of Er3+-activated SiO2-HfO2 waveguide glass ceramic is presented. Concerning confined structures, fabrication by radio-frequency sputtering (RFS) technique of an Er3+-activated microcavity with a quality factor of 171 using oxide-based dielectric materials is demonstrated and fabrication and spectroscopic assessment of Er 3+-activated silica microspheres is presented.