Photorefraction Resistance of Na2O-Doped Lithium Niobate Single Crystals

Autor:	Wen Jinke, Kong Yong-Fa, Yang Zheng-fang
Rok vydání:	1997
Předmět:	Materials science Dopant Doping Lithium niobate Analytical chemistry General Physics and Astronomy engineering.material Crystal Wavelength chemistry.chemical_compound Absorption edge Resist chemistry engineering Ilmenite
Zdroj:	Chinese Physics Letters. 14:629-632
ISSN:	1741-3540 0256-307X
DOI:	10.1088/0256-307x/14/8/018
Popis:	Na2O-doped (up to 3 mol% Na in the melt) LiNbO3 crystals have been grown by the Czochraski method. The experimental results show that Na2O dopants can increase the ability of LiNbO3 to resist light-induced optical damage, but the photorefraction of LiNbO3:Na(3 mol%) is larger than that of LiNbO3:Na (1 mol%) and the absorption edge of the former crystal has a longer wavelength compared with that of the latter. These two abnormal phenomena were interpreted as that some ilmenite structure (NaNbO3) regions are formed in doped LiNbO3 crystals with the increasing dopant concentration of Na2O.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4d0a8dd61674b071b24cd0dc3e0ae855 https://doi.org/10.1088/0256-307x/14/8/018 Zobrazit plný text záznamu