Abstract
The laser-induced fluorescence lifetime of 30 nm particles of YAG:Ce was measuredas a function of temperature from 7 to 77°C. Thefluorescence decay lifetimes for the nanoparticles of this phosphor varied from ≈18 to 27 ns, i.e.≈33%relative to the longest lifetime measured. This large variation in lifetime, coupledwith the high signal strength that was observed, suggest that YAG:Cenanoparticles will be useful thermographic phosphors. We describe the materialand the apparatus used to characterize its fluorescence, present the results ofmeasurements made over the range of temperatures tested and comment on somepossible applications for this novel material.
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