radiation emitted from Yb 3+-and Er 3+-doped nanocrystalline particles of orthophosphates and orthophosphate hydrates irradiated by 972-nm near-infrared laser radiation. The mechanism of appearance of this radiation has been discussed.
Abstract
Experimental data have been presented to confirm the thermal nature of broadband visible radiation emitted from Yb3+- and Er3+-doped nanocrystalline particles of orthophosphates and orthophosphate hydrates irradiated by 972-nm near-infrared laser radiation. The mechanism of appearance of this radiation has been discussed.