Plasmonic interferometry: Probing launching dipoles in scanning-probe plasmonics

被引：10

作者：

Mollet, Oriane ^{[1
,2
]}

Bachelier, Guillaume ^{[1
,2
]}

Genet, Cyriaque ^{[3
]}

Huant, Serge ^{[1
,2
]}

Drezet, Aurelien ^{[1
,2
]}

机构：

[1] CNRS, Inst Neel, F-38042 Grenoble, France

[2] Univ Grenoble 1, F-38042 Grenoble, France

[3] Univ Strasbourg, ISIS, UMR 7006, CNRS, F-67000 Strasbourg, France

来源：

JOURNAL OF APPLIED PHYSICS | 2014年 / 115卷 / 09期

关键词：

LEAKAGE RADIATION MICROSCOPY; EXCITED SURFACE-PLASMONS; NEAR-FIELD; SUBWAVELENGTH APERTURE; TUNNELING-MICROSCOPY; QUANTUM PLASMONICS; CONDUCTING SCREEN; FIBER TIP; DIFFRACTION; SCATTERING;

D O I：

10.1063/1.4867395

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We develop a semi-analytical method for analyzing surface plasmon interferometry using scanning-probe tips as SP launchers. We apply our approach to Young double-hole interferometry experiments in a scanning tunneling microscope discussed recently in the literature as well as to new experiments-reported here-with an aperture near-field scanning optical microscope source positioned near a ring-like aperture slit in a thick gold film. In both experimental configurations, the agreement between experiments and model is very good. Our work reveals the role of the launching dipole orientations and magnetic versus electric dipole contributions to the interference imaging process. It also stresses the different orientations of the effective dipoles associated with the two different scanning-probe techniques. (C) 2014 AIP Publishing LLC.

引用

页数：10

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