Extraordinary refractive-index increase in lithium niobate caused by low-dose ion implantation

被引：70
|
作者：
Hu, H [1 ]
Lu, F
Chen, F
Shi, BR
Wang, KM
Shen, DY
机构：
[1] Shandong Univ, Dept Phys, Jinan 250100, Peoples R China
[2] Peking Univ, MOE Key Lab Heavy Ion Phys, Beijing 100871, Peoples R China
来源：
APPLIED OPTICS | 2001年 / 40卷 / 22期
关键词：
D O I：
10.1364/AO.40.003759
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Multienergy Cu+ ions with total dose of similar to 10(14) ions/cm(2) were implanted into LiNbO3 crystals to form a nearly homogenous damage profile from the sample surface to the end of the ions' track. The extraordinary refractive-index enhancement was found in the damage region by observation of the dark mode. The extraordinary index showed an increasing trend until the ion dose reached a critical value. The largest index enhancement was similar to0.0132. By use of low-dose ion implantation, we determined that the decreased spontaneous polarization caused the extraordinary index increase. (C) 2001 Optical Society of America.
引用
收藏
页码：3759 / 3761
页数：3
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