Decay Kinetics of Gd3Al2Ga3O12:Ce3+ Luminescence under Dense Laser Irradiation

Dmitry Spassky; Andrey Vasil'ev; Nataliya Krutyak; Oleg Buzanov; Vladimir Morozov; Alexei Belik; Nikita Fedorov; Patrick Martin; Andrei Belsky

doi:10.3390/ma16030971

Decay Kinetics of Gd₃Al₂Ga₃O₁₂:Ce³⁺ Luminescence under Dense Laser Irradiation

Materials (Basel). 2023 Jan 20;16(3):971. doi: 10.3390/ma16030971.

Authors

Dmitry Spassky^{1

2}, Andrey Vasil'ev¹, Nataliya Krutyak^{2

3}, Oleg Buzanov⁴, Vladimir Morozov⁵, Alexei Belik⁶, Nikita Fedorov⁷, Patrick Martin⁷, Andrei Belsky⁷

Affiliations

¹ Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Leninskiye Gory 1-2, 119991 Moscow, Russia.
² Institute of Physics, University of Tartu, W. Ostwald Str. 1, 50411 Tartu, Estonia.
³ Physics Department, Lomonosov Moscow State University, Leninskiye Gory 1-2, 119991 Moscow, Russia.
⁴ Fomos-Materials, Buzheninova 16, 107023 Moscow, Russia.
⁵ Department of Chemistry, Lomonosov Moscow State University, Leninskiye Gory 1-3, 119991 Moscow, Russia.
⁶ International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, Namiki 1-1, Tsukuba 305-0044, Ibaraki, Japan.
⁷ Centre Lasers Intenses et Applications, Université de Bordeaux-Centre National de la Recherche Scientifique-Commissariat à l'Énergie Nucléaire, 33405 Talence, France.

Abstract

The decay kinetics of Gd₃Al₂Ga₃O₁₂:Ce³⁺ single crystal luminescence were studied under dense laser excitation. It was shown that the decay times as well as the intensity of Ce³⁺ luminescence depend on the excitation density. The observed effects were ascribed to the interaction between excitons as well as to the features of energy transfer from the excitons to Ce³⁺. The numerical simulation of the experimental results was performed for justification of the proposed model.

Keywords: GAGG:Ce; Z-scan; decay kinetics; excitons interaction; non-linear density effects.

Abstract

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