气候变化领域集成服务门户(CCPortal): Improved scintillating properties in Ce:YAG derived silica fiber with the reduction from Ce4+ to Ce3+ ions

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DOI	10.1016/j.jlumin.2020.117063
	Improved scintillating properties in Ce:YAG derived silica fiber with the reduction from Ce4+ to Ce3+ ions
	Jia M.; Wen J.; Luo W.; Dong Y.; Pang F.; Chen Z.; Peng G.; Wang T.
发表日期	2020
ISSN	222313
卷号	221
英文摘要	The cerium (Ce)-doped optical fiber materials show great applications in smart lighting, fiber laser, and high-energy ray and particle detection. A major challenge is the efficient prevention of Ce3+ oxidized to Ce4+ ions. Here we report the CO2-laser-heated drawing method for fabricating Ce:YAG derived scintillating optical fiber with a concentration of Ce ions (0.21 wt%), and the effective atomic number is 25.4. The estimated ratio of Ce4+/ΣCe is 37% in the raw YAG ceramics, which can be effectively reduced to 3% in the fiber core because of the negative oxygen atmosphere during the fiber drawing process and the formation of non-bridging oxygen. The result is confirmed by the optical absorption spectrum, X-ray absorption fine structure spectra (XAFS), and Raman spectra. These induce a strong emission peak at 401 nm under the X-ray excitation. Moreover, the normalized integral scintillation efficiency of the Ce:YAG derived fiber is up to ~43% of that of Bi4Ge3O12 (BGO) scintillating crystal. The Ce:YAG derived optical fiber is believed to be a promising candidate for scintillators in remote fiber-optic radiation detection applications. © 2020 Elsevier B.V.
英文关键词	CeO2; Optical fibers; Optical properties; X-ray
scopus关键词	Absorption spectroscopy; Atoms; Bismuth compounds; Carbon dioxide lasers; Cerium oxide; Fiber lasers; Germanium compounds; Ions; Light absorption; Optical fibers; Oxygen; Scintillation; Silica; X ray absorption; X rays; Yttrium aluminum garnet; CeO2; Effective atomic number; Optical fiber materials; Scintillating crystals; Scintillating optical fibers; Scintillating properties; Scintillation efficiency; X-ray absorption fine structure spectrum; Optical properties
来源期刊	Journal of Luminescence
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/176924
作者单位	Key Laboratory of Specialty Fiber Optics and Optical Access Networks, Joint International Research Laboratory of Specialty Fiber Optics and Advanced Communication, Shanghai Institute for Advanced Communication and Data Science, Shanghai University, 99 Shangda Road, Shanghai, 200444, China; Shanghai Applied Radiation Institute, Shanghai University, 99 Shangda Road, Shanghai, 200444, China; Photonics and Optical Communications, School of Electrical Engineering and Telecommunications, University of New South Wales, Sydney, NSW 2052, Australia
推荐引用方式 GB/T 7714	Jia M.,Wen J.,Luo W.,et al. Improved scintillating properties in Ce:YAG derived silica fiber with the reduction from Ce4+ to Ce3+ ions[J],2020,221.
APA	Jia M..,Wen J..,Luo W..,Dong Y..,Pang F..,...&Wang T..(2020).Improved scintillating properties in Ce:YAG derived silica fiber with the reduction from Ce4+ to Ce3+ ions.Journal of Luminescence,221.
MLA	Jia M.,et al."Improved scintillating properties in Ce:YAG derived silica fiber with the reduction from Ce4+ to Ce3+ ions".Journal of Luminescence 221(2020).