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

被引：0

作者：

Hu, Hui ^{[1
]}

Lu, Fei ^{[1
]}

Chen, Feng ^{[1
]}

Shi, Bo-Rong ^{[1
]}

Wang, Ke-Ming ^{[1
]}

Shen, Ding-Yu ^{[2
]}

机构：

[1] Department of Physics, Shandong University, Ji'nan 250100, China

[2] MOE Key Lab. of Heavy Ion Physics, Peking University, Bejing 100871, China

来源：

Applied Optics | 2001年 / 40卷 / 22期

关键词：

Crystal lattices - Ion implantation - Light polarization - Optical waveguides - Refractive index - Rutherford backscattering spectroscopy;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Multienergy Cu+ions with total dose of ∼1014ions/cm2were implanted into LiNbO3crystals 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 ∼0.0132. By use of low-dose ion implantation, we determined that the decreased spontaneous polarization caused the extraordinary index increase. © 2001 Optical Society of America.

引用

页码：3759 / 3761