Abstract
Erbium ions in inorganic, insulating gain media show a wide variety emission wavelengths – including ultra-violet, visible (red, green and blue), near-IR (∼800nm, ∼980nm, ∼1550nm) and mid-IR (∼3000nm). Erbium is an interesting ion providing multiple paths to emit multiple wavelengths. The energy levels corresponding to these wavelengths can be populated by converting lower-energy photons into higher energy photons by various energy-transfer mechanisms. Different energy-transfer mechanisms may be present at different concentrations of erbium in the insulating host matrix. Some of these mechanisms are difficult to prove experimentally. We present a novel approach to study utilizing a dual-pump scheme to elucidate some of the energy-transfer mechanisms/pathways in erbium-doped ceramic yttria. By dynamically changing the populations in intermediate energy-levels, we could track the energy-transfer paths, yielding information on the dynamic nature of energy-transfer in RE-doped materials. The parameters controlled in this study were the concentration of the active ion, the pump wavelengths and pump power.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.