Influence of swift heavy ions irradiation on optical and luminescence properties of Y3Al5O12 single crystals

Autor: V. Pankratova, J. Butikova, A. Kotlov, A.I. Popov, V. Pankratov
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Optical Materials: X, Vol 23, Iss , Pp 100341- (2024)
Druh dokumentu: article
ISSN: 2590-1478
DOI: 10.1016/j.omx.2024.100341
Popis: Optical and luminescence properties of Y3Al5O12 (YAG) single crystals preliminary irradiated by swift heavy ions were studied. Swift heavy Xe ions with fluences ranging from 6·1010 to 2·1012 ions/cm2 were utilized for the irradiation of nominally undoped YAG single crystals. A stable strong induced absorption observed in the 200–600 nm spectral range correlates with the irradiation fluence. It is suggested that several centers are responsible for this induced absorption in YAG single crystals and their possible origin (F-type centers) is proposed and discussed. The swift heavy ions irradiation strongly modifies the luminescence properties of YAG, namely, the excitonic emission at liquid helium temperature is drastically suppressed in heavily irradiated crystals.
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