Optical flourescence and fluorescence dynamics of Nd3+ in Sr1-xNdyLax-yMgxAl12-xO19 (ASL:Nd)

Abstract This paper reports on the emission spectra and the fluorescence decays of Nd 3+ in ASL:Nd (Sr 1- x Nd y La x - y Mg x Al 12 - x O 19 with 0 x y x ). The Nd 3+ decay profiles are fitted according to the Hopping model. The decay time decreases with increasing y due to strong interactions between Nd 3+ ions, but is almost x -independent. Fluorescence intensity is given as a function of x and y and is maximum for y values close to 0.1.