We have observed ultraviolet upconversion fluorescence from the D3/24 and P3/22 levels of Nd3+ in fluoroindate glass under infrared pumping. It was found that the excitation of a large population in the F3/24 metastable level allows to achieve strong upconversion emissions at 354 and 382 nm. A simple rate equation model reproduces the temporal behavior of the upconverted emission and allows us to estimate the energy transfer rate among three Nd3+ ions participating in the process.
No takes yet. Share an insight, caveat, or question.
Menezes et al. (1997) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: