Ce-doped LuAG single-crystal fibers grown from the melt for high-energy physics

Under a stationary stable regime undoped and Ce-doped LuAG (Lu3Al5O12) single-crystal fibers were grown by a micro-pulling-down technique. The meniscus length corresponding to the equilibrium state was <200 mu m. Fluctuations in the fiber composition and pulling rate were found to have a signific...

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Autores principales: Xu, X, Lebbou, K, Moretti, F, Pauwels, K, Lecoq, P, Auffray, E, Dujardin, C
Lenguaje:eng
Publicado: 2014
Materias:
XX
Acceso en línea:https://dx.doi.org/10.1016/j.actamat.2013.12.040
http://cds.cern.ch/record/2114772
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author Xu, X
Lebbou, K
Moretti, F
Pauwels, K
Lecoq, P
Auffray, E
Dujardin, C
author_facet Xu, X
Lebbou, K
Moretti, F
Pauwels, K
Lecoq, P
Auffray, E
Dujardin, C
author_sort Xu, X
collection CERN
description Under a stationary stable regime undoped and Ce-doped LuAG (Lu3Al5O12) single-crystal fibers were grown by a micro-pulling-down technique. The meniscus length corresponding to the equilibrium state was <200 mu m. Fluctuations in the fiber composition and pulling rate were found to have a significant effect on the properties of the fibers grown. A great improvement in the performance was found in samples containing low Ce concentrations (<= 0.1 at.\%) and produced using pulling rates <0.5 mm min(-1). Under such conditions a good lateral surface fiber quality was obtained and light propagation was significantly improved. Conversely, a high Ce concentration and a high pulling rate resulted in a strong degradation of the fiber surface quality causing defects to appear and a decrease in light output. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
id cern-2114772
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
record_format invenio
spelling cern-21147722019-09-30T06:29:59Zdoi:10.1016/j.actamat.2013.12.040http://cds.cern.ch/record/2114772engXu, XLebbou, KMoretti, FPauwels, KLecoq, PAuffray, EDujardin, CCe-doped LuAG single-crystal fibers grown from the melt for high-energy physicsXXUnder a stationary stable regime undoped and Ce-doped LuAG (Lu3Al5O12) single-crystal fibers were grown by a micro-pulling-down technique. The meniscus length corresponding to the equilibrium state was <200 mu m. Fluctuations in the fiber composition and pulling rate were found to have a significant effect on the properties of the fibers grown. A great improvement in the performance was found in samples containing low Ce concentrations (<= 0.1 at.\%) and produced using pulling rates <0.5 mm min(-1). Under such conditions a good lateral surface fiber quality was obtained and light propagation was significantly improved. Conversely, a high Ce concentration and a high pulling rate resulted in a strong degradation of the fiber surface quality causing defects to appear and a decrease in light output. (C) 2014 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.oai:cds.cern.ch:21147722014
spellingShingle XX
Xu, X
Lebbou, K
Moretti, F
Pauwels, K
Lecoq, P
Auffray, E
Dujardin, C
Ce-doped LuAG single-crystal fibers grown from the melt for high-energy physics
title Ce-doped LuAG single-crystal fibers grown from the melt for high-energy physics
title_full Ce-doped LuAG single-crystal fibers grown from the melt for high-energy physics
title_fullStr Ce-doped LuAG single-crystal fibers grown from the melt for high-energy physics
title_full_unstemmed Ce-doped LuAG single-crystal fibers grown from the melt for high-energy physics
title_short Ce-doped LuAG single-crystal fibers grown from the melt for high-energy physics
title_sort ce-doped luag single-crystal fibers grown from the melt for high-energy physics
topic XX
url https://dx.doi.org/10.1016/j.actamat.2013.12.040
http://cds.cern.ch/record/2114772
work_keys_str_mv AT xux cedopedluagsinglecrystalfibersgrownfromthemeltforhighenergyphysics
AT lebbouk cedopedluagsinglecrystalfibersgrownfromthemeltforhighenergyphysics
AT morettif cedopedluagsinglecrystalfibersgrownfromthemeltforhighenergyphysics
AT pauwelsk cedopedluagsinglecrystalfibersgrownfromthemeltforhighenergyphysics
AT lecoqp cedopedluagsinglecrystalfibersgrownfromthemeltforhighenergyphysics
AT auffraye cedopedluagsinglecrystalfibersgrownfromthemeltforhighenergyphysics
AT dujardinc cedopedluagsinglecrystalfibersgrownfromthemeltforhighenergyphysics

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