Growth and optical properties of doped LiTaO3 single crystals

被引：0
|
作者：
Lukasiewicz, T
Ryba-Romanowski, W
Sokólska, J
Swirkowicz, M
Golab, S
Galazka, Z
机构：
[1] Inst Elect Mat Technol, PL-01919 Warsaw, Poland
[2] Polish Acad Sci, W Trzebiatowski Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland
来源：
CRYSTAL RESEARCH AND TECHNOLOGY | 2001年 / 36卷 / 02期
关键词：
doped lithium tantalate; Czochralski growth; optical propel-ties;
D O I：
10.1002/1521-4079(200102)36:2<127::AID-CRAT127>3.0.CO;2-L
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
Single crystals of lithium tantalate (LiTaO3) doped with Pr, Nd + Yb and Tm were grown by the Czochralski method. A thermal system with 50 mm diameter iridium crucible and two different afterheaters (active and passive) was checked with respect to temperature distribution in a pulling region. The obtained crystals were up to 20 mm in diameter and up 50 mm in length. Crystals were poled, and the Curie temperature was determined for specimens cut. of from different parts of single crystals. The polarized absorption spectra, time resolved emission spectra and emission lifetime of Pr3+ doped LiTaO3 crystals were measured. An intense emission from the P-3(o) level was observed. Optical properties of the Yb3+ ions excited by energy transfer from Nd3+ ions have been researched for LiTaO3:Nd, Yb crystals.
引用
收藏
页码：127 / 134
页数：8
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