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- Title
Influence of Air Annealing on Optical and Scintillation Properties of YAG:Pr,Ca.
- Authors
Derdzyan, Marina V.; Hovhannesyan, Karine L.; Santos, Sabrina N. C.; Dujardin, Christophe; Petrosyan, Ashot G.
- Abstract
Single crystals of yttrium aluminum garnet (YAG) with Pr3+ and Ca2+ ions grown by the vertical Bridgman method are submitted to air anneal. The influence of this process on optical absorption, photo‐, and radioluminescence is investigated in a set of samples with different concentrations of Pr and Ca. Absorption induced by the heat treatment in the 300–600 nm range in YAG:Pr,Ca is discussed, in comparison with that in YAG:Ca crystals. Photo‐ and radioluminescence spectra in as‐grown and air‐annealed samples recorded at room temperature are discussed. The features of emission decrease at 5d–4f and 4f–4f transitions of Pr3+ ions after heat treatment are considered.
- Subjects
OPTICAL properties; LIGHT absorption; RADIOLUMINESCENCE; HEAT radiation &; absorption; ALUMINUM crystals; SINGLE crystals
- Publication
Physica Status Solidi. A: Applications & Materials Science, 2023, Vol 220, Issue 1, p1
- ISSN
1862-6300
- Publication type
Article
- DOI
10.1002/pssa.202200571