Fabrication and Optical Properties of Cr3+:YSAG Transparent Ceramics
Cr-doped Y3ScxAl(5-x)O12(Nd:YSAG) powder have been prepared with a combustion method. The powders are nanosized and a pure cubic phase when calcined at 900°C. Transparent Cr:YSAG ceramics were successfully fabricated by sintering the powder compact at 1800°C under H2 atmosphere. The optical properties were investigated in detail. It was found that after Sc substitute for Al, the The octahedral crystal-field parameter Dq and Dq/B was reduced, and that is why the absorption peak move to the longer wavelength side but the emission peak not moved.
Wei Pan and Jianghong Gong
T. Feng et al., "Fabrication and Optical Properties of Cr3+:YSAG Transparent Ceramics", Key Engineering Materials, Vols. 434-435, pp. 664-667, 2010