Second-harmonic generation from thermally poled PbO-GeO2 glasses

被引:10
|
作者
Nasu, H [1 ]
Ito, Y [1 ]
Yamamoto, Y [1 ]
Hashimoto, T [1 ]
Kamiya, K [1 ]
机构
[1] Mie Univ, Fac Engn, Dept Chem Mat, Tsu, Mie 5148507, Japan
关键词
nonlinear optical glasses; second-harmonic generation; homogeneous glasses; PbO-GeO2; glasses; germanium anomaly; non-bridging oxygen;
D O I
10.2109/jcersj.109.1268_366
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Second-harmonic generation (SHG) was observed from PbO-GeO2 glasses after thermal poling. As in PbO-SiO2 glasses, the compositional dependence of SHG intensity was found, although the SHG intensity was rather small. The largest SHG intensity was observed for about PbO = 35 mol%. On the basis of extended X-ray analysis fine structure (EXAFS) results previously obtained, it was considered that remarkable increase of SHG intensity found for PbO > 20 mol% was caused by the formation of non-bridging oxygens. On the other hand, then the decrease of the intensity at PbO > 35 mol% was due to the disappearance of non-bridging oxygens.
引用
收藏
页码:366 / 368
页数:3
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