Nanostructure formation of double-clad Cr4+:YAG crystal fiber grown by co-drawing laser-heated pedestal

Autor:	Pouyan Shen, Sheng-Lung Huang, Kuang-Yao Huang, T.Y. Chang, Chia-Yao Lo, Chien-Chih Lai, Jiun-Yu Ji, Jian-Cheng Chen, Yen-Sheng Lin
Rok vydání:	2006
Předmět:	Materials science Photoluminescence Optical fiber Nanostructure Doping Analytical chemistry Mineralogy Condensed Matter Physics Cladding (fiber optics) Microstructure law.invention Inorganic Chemistry Transmission electron microscopy law Materials Chemistry Spectroscopy
Zdroj:	Journal of Crystal Growth. 289:515-519
ISSN:	0022-0248
DOI:	10.1016/j.jcrysgro.2005.11.128
Popis:	The microstructures of double-clad Cr 4+ :YAG crystal fibers grown using a co-drawing laser-heated pedestal growth method were studied by high-resolution transmission electron microscopy and photoluminescence spectroscopy. The core is single-crystalline garnet elongated in [1 1 1] direction, whereas inner cladding a composite of Cr 3+ : γ -Al 2 O 3 nanocrystals in Cr 4+ : silicate glass due to YAG/SiO 2 inter-diffusion and a high crystal-field-stabilization energy of Cr 3+ attained in close packed oxide. Cr 4+ fluorescence intensity decreases and shifts to lower wavelength for the inner cladding in comparison with the core.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::118f7f755e617b9a298dcc7547307d6a https://doi.org/10.1016/j.jcrysgro.2005.11.128 Zobrazit plný text záznamu Full Text from ScienceDirect