熱ポーリング処理したPbO-GeO_2ガラスからの第二高調波発生

概要

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Second-harmonic generation(SHG) was observed from PbO-GeO_2 glasses after thermal poling. As in PbO-SiO_2 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 mo1% 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.
社団法人日本セラミックス協会の論文
2001-04-01