Ultra-thin plasmonic optical vortex plate based on phase discontinuities

被引：479

作者：

Genevet, Patrice ^{[1
,2
,3
]}

Yu, Nanfang ^{[1
]}

Aieta, Francesco ^{[1
,4
]}

Lin, Jiao ^{[1
,5
]}

Kats, Mikhail A. ^{[1
]}

Blanchard, Romain ^{[1
]}

Scully, Marlan O. ^{[2
,3
]}

Gaburro, Zeno ^{[1
,6
]}

Capasso, Federico ^{[1
]}

机构：

[1] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA

[2] Texas A&M Univ, Inst Quantum Studies, College Stn, TX 77843 USA

[3] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA

[4] Univ Politecn Marche, Dipartimento Fis & Ingn Mat & Terr, I-60131 Ancona, Italy

[5] Singapore Inst Mfg Technol, Singapore 638075, Singapore

[6] Univ Trento, Dipartimento Fis, I-38100 Trento, Italy

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 01期

基金：

美国国家科学基金会;

关键词：

LIGHT; SINGULARITIES;

D O I：

10.1063/1.3673334

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A flat optical device that generates optical vortices with a variety of topological charges is demonstrated. This device spatially modulates light beams over a distance much smaller than the wavelength in the direction of propagation by means of an array of V-shaped plasmonic antennas with sub-wavelength separation. Optical vortices are shown to develop after a sub-wavelength propagation distance from the array, a feature that has major potential implications for integrated optics. (C) 2012 American Institute of Physics. [doi: 10.1063/1.3673334]

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页数：3

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