INVESTIGATION OF OPTICAL INHOMOGENEITIES AND GROWTH DEFECTS IN FLUX-GROWN NB-KTP CRYSTALS

Authors
LIU WJ JIANG SS GE CZ HU XB HUANG XR WEI JQ WANG JY JIANG JH
Citation
Wj. Liu et al., INVESTIGATION OF OPTICAL INHOMOGENEITIES AND GROWTH DEFECTS IN FLUX-GROWN NB-KTP CRYSTALS, Physica status solidi. a, Applied research, 161(2), 1997, pp. 329-334
Citations number
12
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica status solidi. a, Applied research → ACNP
ISSN journal
00318965
Volume
161
Issue
2
Year of publication
1997
Pages
329 - 334
Database
ISI
SICI code
0031-8965(1997)161:2<329:IOOIAG>2.0.ZU;2-M
Abstract
Optical inhomogeneities and growth defects in flux-grown Nb-doped pota ssium titanyl phosphate crystals have been investigated. The growth st riations, growth sector boundaries and dislocations are revealed by wh ite-beam synchrotron radiation topography. All of the observed disloca tions are growth induced and no ferroelectric domains are found in the crystals. It is believed that the main reason for causing the instabi lity of the 90 degrees non-critical phase matching along the x-directi on is related to the growth striations, especially of {011} sectors.