KINETIC CHARACTERISTICS OF UP-CONVERSION LUMINESCENCE IN FLUOROPHOSPHATE GLASSES DOPED WITH Tm3+ AND Yb3+ IONS, EXCITED BY CW AND PULSED FEMTOSECOND INFRARED RADIATION
DOI:
https://doi.org/10.22353/physics.v36i605.9320Abstract
We report kinetics of rise and decay of up-conversion luminescence in processes involving Tm3+ ions in fluorophosphate glass upon excitation of Yb3+ ions by continuous and pulsed femtosecond radiation. We observe several characteristic times in time-profiles of up-conversion rise and decay fronts. Also, the luminescence decay process with continuous pump behaves in a completely different way in comparison with femtosecond pulsed pump with increasing pump power.
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