電気的にポーリングしたGe-Sガラス系からの第二高調波発生

概要

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Second harmonic generation was observed from thermally poled GeS_x (x=3, 4, 5, 6) glass system. The intensity of second harmonic generation depended on the S content. From x=3 to 5, the generation increased with increasing S content, and then decreased at x=6. There was apparent dependence of the second harmonic generation on poling temperature. The maxima appeared by poling at near glass transition temperature. By electron spin resonance and Raman scattering measurements before and after poling, it is evident that defects were formed by poling and the structure was deformed, which could relate to the generation. The relaxation of the generation was interpreted according to a recombination of defects and to a relaxation of structural deformation.
社団法人日本セラミックス協会の論文
2005-11-01