EFFECTS OF SURFACE MAGNETISM ON OPTICAL 2ND HARMONIC-GENERATION

被引：190

作者：

REIF, J

ZINK, JC

SCHNEIDER, CM

KIRSCHNER, J

机构：

[1] Institut F̈r Experimentalphysik, Freie Universität Berlin, W-1000 Berlin 33

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 67卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.67.2878

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the first experiments showing the influence of surface magnetization on optical second harmonic generation in reflection at a Fe(110) surface. The magneto-optical Kerr effect modifies the hyperpolarizability of the surface in the optical field, leading to a dependence of the second harmonic yield on the direction of magnetization relative to the light fields. For the clean surface an effect of 25% was determined, which decays exponentially with surface contamination by the residual gas, thus demonstrating the high surface sensitivity of this technique.

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页码：2878 / 2881

页数：4

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