Imaging scanning tunneling microscope-induced electroluminescence in plasmonic corrals

被引：19

作者：

Egusa, S

Liau, YH

Scherer, NF

机构：

[1] Univ Chicago, James Franck Inst, Dept Phys, Chicago, IL 60637 USA

[2] Univ Chicago, Mat Res Sci & Engn Ctr, Chicago, IL 60637 USA

[3] Univ Chicago, James Franck Inst, Dept Chem, Chicago, IL 60637 USA

来源：

APPLIED PHYSICS LETTERS | 2004年 / 84卷 / 08期

关键词：

D O I：

10.1063/1.1649799

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An approach to image localized and propagating surface plasmon (SP) modes is introduced. It is shown that scanning tunneling microscope (STM)-electroluminescence, the radiative decay of SPs induced by inelastically tunneling electrons, observed in Fourier space yields distinct features that reflect the degree of delocalization and spatial distribution of SP modes. The propagating SP is isolated from the localized mode by way of this Fourier space imaging approach. Furthermore, a cylindrically symmetric spatial interference pattern is obtained when the STM-induced plasmon is created within a circular "corral" boundary condition. (C) 2004 American Institute of Physics.

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页码：1257 / 1259

页数：3

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