In:
Journal of Applied Physics, AIP Publishing, Vol. 108, No. 5 ( 2010-09-01)
Abstract:
This study reports, for the first time, atomic-scale high-resolution transmission electron microscope (HRTEM) microstructure studies on the interface between the crystal core and polycrystalline inner cladding and strain relaxation mechanism of high-quality Cr:YAG double-clad crystal fibers grown by a codrawing laser-heated pedestal growth method. HRTEM analysis indicates that the core has high crystallinity and a sharp core/inner-cladding interface, exhibiting coherent planes with a preferred orientation relationship to the γ-Al2O3 nanocrystals in the inner cladding. The slightly distorted γ-Al2O3 lattice facilitates the release of residual strain, and eliminates misfit dislocation at the interface. Lattice strain analysis and image processing reveal a ∼18.2 nm layer near the interface for strain relaxation.
Type of Medium:
Online Resource
ISSN:
0021-8979
,
1089-7550
Language:
English
Publisher:
AIP Publishing
Publication Date:
2010
detail.hit.zdb_id:
220641-9
detail.hit.zdb_id:
3112-4
detail.hit.zdb_id:
1476463-5
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