Nanoantenna for Electrical Generation of Surface Plasmon Polaritons

被引：71

作者：

Bigourdan, Florian ^{[1
]}

Hugonin, Jean-Paul ^{[1
]}

Marquier, Francois ^{[1
]}

Sauvan, Christophe ^{[1
]}

Greffet, Jean-Jacques ^{[1
]}

机构：

[1] Univ Paris Saclay, CNRS, Grad Sch, Inst Opt,Lab Charles Fabry, F-91127 Palaiseau, France

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 116卷 / 10期

关键词：

LIGHT-EMISSION; PHOTON-EMISSION; ENHANCEMENT;

D O I：

10.1103/PhysRevLett.116.106803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Light emission by inelastic tunneling has been known for many years. Recently, this technique has been used to generate surface plasmons using a scanning tunneling microscope tip. The emission process suffers from a very low efficiency lower than a photon in 10(4) electrons. We introduce a resonant plasmonic nanoantenna that allows both enhancing the power conversion to surface plasmon polaritons by more than 2 orders of magnitude and narrowing the emission spectrum. The physics of the emission process is analyzed in terms of local density of states and the efficiency of the nanoantenna to radiate surface plasmon polaritons.

引用

页数：5

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