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https://elib.bsu.by/handle/123456789/265672| Title: | Free carrier absorption in self-activated PbWO4 and Ce-doped Y3(Al0.25Ga0.75)3O12 and Gd3Al2Ga3O12 garnet scintillators |
| Authors: | Auffray, E. Korjik, M. Lucchini, M.T. Nargelas, S. Sidletskiy, O. Tamulaitis, G. Tratsiak, Y. aitkevicius, A. |
| Keywords: | ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика |
| Issue Date: | 2016 |
| Publisher: | Elsevier B.V. |
| Citation: | Opt Mater 2016;58:461-465. |
| Abstract: | Nonequilibrium carrier dynamics in the scintillators prospective for fast timing in high energy physics and medical imaging applications was studied. The time-resolved free carrier absorption investigation was carried out to study the dynamics of nonequilibrium carriers in wide-band-gap scintillation materials: self-activated led tungstate (PbWO4, PWO) ant two garnet crystals, GAGG:Ce and YAGG:Ce. It was shown that free electrons appear in the conduction band of PWO and YAGG:Ce crystals within a sub-picosecond time scale, while the free holes in GAGG:Ce appear due to delocalization from Gd3+ ground states to the valence band within a few picoseconds after short-pulse excitation. The influence of Gd ions on the nonequilibrium carrier dynamics is discussed on the base of comparison the results of the free carrier absorption in GAGG:Ce containing gadolinium and in YAGG without Gd in the host lattice. |
| URI: | https://elib.bsu.by/handle/123456789/265672 |
| DOI: | 10.1016/j.optmat.2016.06.040 |
| Scopus: | 84976370545 |
| Sponsorship: | Horizon 2020 Framework Programme (H2020), 644260,654168 |
| Appears in Collections: | Статьи НИУ «Институт ядерных проблем» |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| AIDA-2020-PUB-2016-013.pdf | 352,33 kB | Adobe PDF | View/Open |
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