Determination of the Nonlinear Susceptibility Tensor by Surface Second Harmonic Generation.

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  • 表面第二高調波発生法による表面非線形感受率の決定
  • ヒョウメン ダイ 2 コウチョウハ ハッセイホウ ニ ヨル ヒョウメン ヒセン

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Abstract

Variation of the second-harmonic signal with the incidence angle is studied for a clean Si (111) surface. Theoretical investigation of second harmonic generation leads to formulas connecting the generated light intensities to the surface nonlinear susceptibility tensor. Four independent tensor components for the Si (111)-7×7 surface are successfully deter-mined from the angular-dependence data.

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