硫化物ガラスの三次非線形光学特性 : La_2S_3-Ga_2S_3及びMS-La_2S_3-Ga_2S_3(MS=PbS, Ag_2S及びNa_2S)系ガラス

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The dependence of the third-order nonlinear optical properties of the La_2S_3-Ga_2S_3 and MS-La_2S_3-Ga_2S_3(MS=PbS, Ag_2S and Na_2S)glasses on the composition, linear refractive index and optical band gap was examined. The χ^<(3)> of the glasses was 〜10^<-12> esu, which was about 100 times as large as that of silica glass, and was increased with the increase of La_2S_3 content in the La_2S_3-Ga_2S_3 binary glasses, while it was increased with the substitution of PbS or Ag_2S for La_2S_3 and decreased when La_2S_3 was replaced by Na_2S. The χ^<(3)> of the glasses was found to increase with the increase of linear refractive index and the decrease of band gap, being in accordance with the empirical Miller's rule and optical band gap model.
社団法人日本セラミックス協会の論文
1997-12-01