Growth twins in self-frequency doubling laser crystal YbxY1-xAl3(BO3)(4)

Citation
Xb. Hu et al., Growth twins in self-frequency doubling laser crystal YbxY1-xAl3(BO3)(4), PROG CRYST, 40(1-4), 2000, pp. 57-61
Citations number
8
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PROGRESS IN CRYSTAL GROWTH AND CHARACTERIZATION OF MATERIALS
ISSN journal
0960-8974 → ACNP
Volume
40
Issue
1-4
Year of publication
2000
Pages
57 - 61
Database
ISI
SICI code
0960-8974(2000)40:1-4<57:GTISDL>2.0.ZU;2-P
Abstract
Using chemical etching method, the growth twins in self-frequency doubling laser crystal YbxY1-xAl3(BO3)(4) have been observed. The etching pits on bo th sides of growth twin boundaries in the (<10(1)over bar 1>) slice are of the triangles with different orientations. The structure of growth twins is investigated by transmission synchrotron topography. In the transmission s ynchrotron topograph, the growth twins are visible not by 'domain contrast' but by 'boundary contrast', i.e. the twins appear in the topograph in form of X-ray kinematical diffraction contrast due to the lattice strain stemmi ng from the impurity incorporation in the boundaries. The growth twins in Y bxY1-xAl3(BO3)(4) crystal are of inversion types, since no domain contrast was observed.