Simulation and experiment on laser-heated pedestal growth of chromium-doped yttrium aluminum garnet single-crystal fiber

Autor:	Peng-Yi Chen, Chung-Wen Lan, Chia-Yao Lo, Wood-Hi Cheng, Sheng-Lung Huang, Kuang-Yao Huang, Chun-Lin Chang
Rok vydání:	2011
Předmět:	Materials science Dopant business.industry chemistry.chemical_element Crystal growth Yttrium Condensed Matter Physics Inorganic Chemistry Crystal Pedestal Optics chemistry Materials Chemistry Laser-heated pedestal growth Fiber Composite material business Single crystal
Zdroj:	Journal of Crystal Growth. 318:674-678
ISSN:	0022-0248
DOI:	10.1016/j.jcrysgro.2010.11.035
Popis:	The laser-heated pedestal growth (LHPG) of chromium-doped yttrium aluminum garnet (Cr:YAG) single-crystal fibers in 〈1 1 1〉 direction was investigated via a two-dimensional (2D) simulation which is verified by experimental observations on the interface shapes. Radial dopant profiles at the growth front in simulations were consistent with that of the grown crystal fibers in ex-situ measurements. The concentration level and distribution compared to the corresponding fluid flow and heat transfer were reported to visualize the phenomena that cannot be observed easily. It is viable to adjust the shape of air/melt interface, the distribution of mass flow rate, and especially the shape of growth front for acquiring a desirable radial dopant profile.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::af8a6552f12427177c7db9f0cfc8e39e https://doi.org/10.1016/j.jcrysgro.2010.11.035 Zobrazit plný text záznamu Full Text from ScienceDirect