Tailoring Er³⁺ spectroscopic properties by nanocomposite photonic glasses and confined structures

Abstract

Paper reports recent advances in optical nanomaterials, planar microcavity, and spherical microresonators. Bottom-up fabrication and optical assessment of Er ³⁺ -activated SiO ₂ -HfO ₂ waveguide glass ceramic is presented. Concerning confined structures, fabrication by radio-frequency sputtering (RFS) technique of an Er ³⁺ -activated microcavity with a quality factor of 171 using oxide-based dielectric materials is demonstrated and fabrication and spectroscopic assessment of Er3+-activated silica microspheres is presented.