| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1796615 | Journal of Crystal Growth | 2006 | 5 Pages |
Abstract
The microstructures of double-clad Cr4+: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 Cr3+:γ-Al2O3 nanocrystals in Cr4+: silicate glass due to YAG/SiO2 inter-diffusion and a high crystal-field-stabilization energy of Cr3+ attained in close packed oxide. Cr4+ fluorescence intensity decreases and shifts to lower wavelength for the inner cladding in comparison with the core.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Yen-Sheng Lin, Chien-Chih Lai, Kuang-Yao Huang, Jian-Cheng Chen, Chia-Yao Lo, Sheng-Lung Huang, Tao-Yuan Chang, Jiun-Yu Ji, Pouyan Shen,