Thermo-optical investigation of sodium-bismuth titanate single crystal and PLZT ceramics

被引:2
作者
Liberts, G
Ivanovs, G
Dimza, V
Tamanis, E
机构
[1] Daudavpils Univ, Dept Phys, LV-5401 Daugavpils, Latvia
[2] Riga Tech Univ, Dept Telecommun, LV-1048 Riga, Latvia
[3] Latvian State Univ, Inst Solid State Phys, LV-1063 Riga, Latvia
关键词
relaxor ferroelectrics; thermal lens; phase transitions;
D O I
10.1080/00150190590965488
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Thermal lensing in relaxor type ferroelectrics as a function of temperature has been investigated by using pulse/probe method. Enhanced thermo-optical (TO) properties had been observed in 3d elements (Cu, Co) doped PLZT ceramics and in sodium-bismuth titanate single crystals near phase transitions (PT). Comparison of TO signals for several doped PLZT materials reveals that 0.5 wt.% Cu doping is responsible for improved thermal lensing parameters interpreted by optimal light absorption, heat transfer and possible PT adjustment. TO experiments in sodium-bismuth titanate single crystals ([001] cut) show enhancement of TO properties in the region of PT and coexisting phases (rhombohedral and tetragonal).
引用
收藏
页码:87 / 93
页数:7
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