Thermal poling and space charge dynamics including surface impurity injection in fused silica

被引:0
|
作者
Alley, TG [1 ]
Brueck, SRJ [1 ]
Wiedenbeck, M [1 ]
机构
[1] Univ New Mexico, Ctr High Technol Mat, Albuquerque, NM 87106 USA
来源
DOPED FIBER DEVICES II | 1998年 / 3542卷
关键词
fused silica; SiO2; nonlinear; poling; SIMS;
D O I
10.1117/12.333766
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The space charge region associated with the second-order nonlinearity in thermally poled fused silica was examined using secondary ion mass spectrometry (SIMS). Results for four samples are presented here: two flame-fused quartz samples (type-II fused silica), a higher purity flame-fused synthetic (type-III) fused silica, and a type-II fused silica treated with deuterated water. SIMS results show: 1) ionic depletion regions formed by migration of alkali ion impurities with different mobilities, 2) injection of surface alkali contaminants arising from the high surface fields, and 3) evidence of field injection as well as thermal diffusion of adsorbed surface water.
引用
收藏
页码:108 / 114
页数:7
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