Plasmonic planar antenna for wideband and efficient linear polarization conversion

被引：103

作者：

Levesque, Quentin ^{[1
,2
]}

Makhsiyan, Mathilde ^{[1
,2
]}

Bouchon, Patrick ^{[2
]}

Pardo, Fabrice ^{[1
]}

Jaeck, Julien ^{[2
]}

Bardou, Nathalie ^{[1
]}

Dupuis, Christophe ^{[1
]}

Haidar, Riad ^{[2
,3
]}

Pelouard, Jean-Luc ^{[1
]}

机构：

[1] CNRS, LPN, F-91460 Marcoussis, France

[2] Off Natl Etud & Rech Aerosp, F-91761 Palaiseau, France

[3] Ecole Polytech, Dept Phys, F-91128 Palaiseau, France

来源：

APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 11期

关键词：

COUPLED-WAVE METHOD; BROAD-BAND; METAMATERIAL; METASURFACES; REFLECTION; REFRACTION;

D O I：

10.1063/1.4869127

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this Letter, we demonstrate both theoretically and experimentally that plasmonic planar L-shaped antenna can nearly totally convert the linear polarization of light with a high efficiency in the infrared (3-5 mu m). The nanoantenna geometry is engineered so that the polarization conversion occurred on a 1 mu m-wide band ([3.25-4.25] mu m) with a mean polarization conversion ratio of 95%. We show that this effect is due to two localized resonances in the L-shaped antenna, which wavelengths are tunable with the in-plane geometry of the nanoantenna. Eventually, the angular independence of the polarization conversion effect is evidenced. (C) 2014 AIP Publishing LLC.

引用

页数：3

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