Micro-pulling-down growth of long YAG- and LuAG-based garnet fibres: advances and bottlenecks
| Autor: | D. Kofanov, Kheirreddine Lebbou, Oleg Sidletskiy |
|---|---|
| Přispěvatelé: | Institute for Scintillation Materials of NASU, National Academy of Sciences of Ukraine (NASU), Luminescence (LUMINESCENCE), Institut Lumière Matière [Villeurbanne] (ILM), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Polishing 02 engineering and technology 01 natural sciences law.invention Ion [SPI]Engineering Sciences [physics] law 0103 physical sciences [CHIM]Chemical Sciences General Materials Science Crystallization Cherenkov radiation 010302 applied physics [PHYS]Physics [physics] Scintillation business.industry Detector Micro-pulling-down General Chemistry Light attenuation 021001 nanoscience & nanotechnology Condensed Matter Physics Optoelectronics 0210 nano-technology business |
| Zdroj: | CrystEngComm CrystEngComm, Royal Society of Chemistry, 2021, 23 (14), pp.2633-2643. ⟨10.1039/D1CE00091H⟩ |
| ISSN: | 1466-8033 |
| DOI: | 10.1039/D1CE00091H⟩ |
| Popis: | International audience; A technological advance in shaped μ-PD crystal growth provided us with high-quality single crystalline fibres of rare-earth garnets with the good longitudinal transparency and light attenuation length of up to 1 m.New high-energy experiments in colliders have increased the demand for cheap and radiation-hard detector materials that can be mass produced. The concepts of a new generation of high-energy physics experiments include combined electromagnetic and hadron calorimeters for the simultaneous detection of scintillation and Cherenkov emission using undoped and lanthanide-doped crystalline fibres. The micro-pulling-down (μ-PD) method provides the growth of long single crystalline fibres in a ready-to-use shape without the need for further cutting and polishing. In this highlights paper, recent achievements relating to the μ-PD growth of long Y3Al5O12 (YAG)- and Lu3Al5O12 (LuAG)-based fibres from the Institute of Light and Matter are reviewed. Optimization of the Ce concentration, pulling rate, and crystallizer configuration resulted in the formation of highly transparent LuAG:Ce fibres with a light attenuation length of up to 1 m. Meanwhile, such excellent transparency has not been reproduced in YAG:Ce fibers. The main differences in the crystallization processes of YAG- and LuAG-based fibres are discussed in connection with their physical properties. The paper also addresses the codoping of garnet fibres with Mg2+ ions and growth from non-stoichiometric melts to adjust fiber transmission and scintillation performance. |
| Databáze: | OpenAIRE |
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