Rare earth (RE) doped oxyfluoride glass ceramics possess interesting optical properties
with applications in telecommunications and optoelectronics, such as solid state lasers …

Oxyfluoride glass-ceramics (OxGC) present attractive optical properties suitable for many
applications. The incorporation of fluoride crystals into silicate matrices improves the …

The efficiency of photovoltaic solar cells is strongly related to the spectral absorption and
photo-conversion properties of the cell's active material, which does not exploit the whole …

Transparent glass ceramics, when activated by rare earth ions, are excellent photonic
materials. Regarding photonic glass-ceramics based on silicates, hafnia and silica in a …

Sol–gel is a handy, very flexible, and cheap method to fabricate, study, and apply innovative
photonic structures. The possibility of starting from molecular precursors and elementary …

Emission by rare earth emitters has been experimentally investigated based on their
position relative to metallic nanoparticles by using Ag/Y 2 O 3/Eu: Y 2 O 3/Y 2 O 3/Ag …

We study TE-wave propagation in a hollow waveguide with a graded transition from a lossy
right-handed material (RHM) filling the left-hand half of the waveguide to the impedance …

GeO_2 transparent glass ceramic planar waveguides were fabricated by a RF-sputtering
technique and then irradiated by a pulsed CO_2 laser. The effects of CO_2 laser processing …

70SiO2-30HfO2 glass ceramic planar waveguides co-activated by Tb3+/Yb3+ ions were
fabricated by sol gel route using a top-down approach. The energy transfer from Tb3+ to …

In this paper, the investigation of energy transfer efficiency in Tb 3+-Yb 3+ co-doped SiO 2-
HfO 2 glass and glass-ceramic waveguides is presented. Cooperative energy transfer …