Refraction of surface plasmon-polaritons at Au-Al boundaries observed by scanning near-field optical microscopy

被引：2

作者：

Kitazawa, Tazuko ^{[1
]}

Miyanishi, Shintaro ^{[1
]}

Murakami, Yoshiteru ^{[1
]}

Kojima, Kunio ^{[1
]}

Takahashi, Akira ^{[1
]}

机构：

[1] Sharp Co Ltd, Adv Technol Res Labs, Nara 6328567, Japan

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 19期

关键词：

D O I：

10.1103/PhysRevB.77.193404

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Surface plasmon-polariton (SPP) propagation was investigated experimentally on a heterostructured metal sample consisting of in-plane Al and An films. A scattered-type scanning near-field optical microscope (SNOM) was used to observe the wave vector and intensity of the SPPs. Interference fringes appearing in the SNOM image clearly bent at the interface between Al and Au, indicating a definite refraction of the SPPs. The observed bending angle of the interference fringes was in good agreement with a corresponding simulation and theoretical analysis using Snell's law.

引用

页数：4

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