Abstract
We successfully demonstrate new heavy metal-gallium-doped oxide glass media, which are capable of accommodating a significant level of Er3+ doping, while avoiding the deleterious effects of concentration quenching. We examine the effects of composition and microstructure of the glass networks on optical properties. Near-infrared and visible emission demonstrate the absence of concentration quenching and Er3+ clustering. Both Raman spectroscopy and X-ray absorption fine structure spectroscopy confirm that gallium enters the glass as a tetrahedral network former. The incorporation of gallium into the glass modifies the energy landscape and creates two distinct crystal field environments, which promote Er3+ radiative transitions.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
