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Journal articles
Ce-doped LuAG single-crystal fibers grown from the melt for high-energy physics
Abstract : 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 μm. 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.
https://hal-univ-lyon1.archives-ouvertes.fr/hal-02309440
Contributor : Depot 4 Lyon 1 Connect in order to contact the contributor
Submitted on : Wednesday, October 9, 2019 - 11:48:16 AM
Last modification on : Friday, November 5, 2021 - 11:44:08 AM
Contributor : Depot 4 Lyon 1 Connect in order to contact the contributor
Submitted on : Wednesday, October 9, 2019 - 11:48:16 AM
Last modification on : Friday, November 5, 2021 - 11:44:08 AM