Investigations of near IR photoluminescence properties in TiO2:Nd,Yb materials using hyperspectral imaging methods

► Films and powders of Nd and Yb-doped titania have been synthesized. ► Three modifications (anatase, rutile and Degussa P25) have been studied. ► The NIR photoluminescence properties were studied by hyperspectral imaging. ► Emission at 978, 1008, 1029, 1064 and 1339 nm was obtained. ► The structural properties and their influence on the optical behavior are discussed.