Effects of divalent dopants on the microstructure and conversion efficiency of Cr4+ ions in Cr,Me:YAG (Me - Ca, Mg, Ca/Mg) transparent ceramics

Mykhailo Chaika, Giulia Mancardi, Robert Tomala, Wiesław Stek, Oleh Vovk
2020 Processing and Application of Ceramics  
The efficiency of Cr 4+ :YAG is directly proportional to the transparency and concentration of Cr 4+ which can be tuned by changing the divalent dopant. The aim of this study was to investigate the influence of different kinds of divalent dopants on the properties of Cr,Me:YAG (Me = Ca, Mg or Ca/Mg) ceramics made by solidstate sintering in vacuum. Pure YAG phases with an in-line transmittance of 80% at 1064 nm were prepared. It was revealed that the Cr 4+ concentration is directly proportional
more » ... ectly proportional to the concentration of divalent dopants and it does not depend on the type of dopant. Our experiment proves that the efficiency of high optical quality Cr 4+ :YAG ceramics prepared by sintering does not change when different kinds of divalent additives are used.
doi:10.2298/pac2001083c fatcat:nomk4bb535e4jaqmqangjtlj6q