PHOTOSTRICTION EFFECT OF DOPED LINBO3 SINGLE-CRYSTALS

被引：0

作者：

XIAO, DQ ^{[1
]}

ZHU, JG ^{[1
]}

ZHAO, SP ^{[1
]}

WANG, X ^{[1
]}

ZHANG, W ^{[1
]}

LIU, GQ ^{[1
]}

XU, GF ^{[1
]}

机构：

[1] SOUTHWEST INST TECH PHYS,CHENGDU 610061,PEOPLES R CHINA

来源：

SOLID STATE COMMUNICATIONS | 1991年 / 79卷 / 11期

关键词：

D O I：

暂无

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Photostriction effect and its dependence on light intensity were investigated for lithium niobate (LiNbO3) single crystals doped with Fe2O3, MgO and MgO plus TiO2 respectively. The photoinduced strains of the order of 10(-4) were measured by using a micro-displacement detector. The results show that the lower the optical damage threshold of the crystal measured, the larger the magnitudes of the photostrains, and that the dynamic properties of the photostrain change rates are analogous to those of the photocurrent generated when the crystals were illuminated. These results indicate that the photostrain of the crystals is due to both the coupling effect of anomalous photovoltaic and piezoelectric effects and rearrangement of the ions following the excitation of photocarriers in crystals.

引用

页码：1005 / 1007

页数：3

共 50 条

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