Plasmonic Airy Beam Generated by In-Plane Diffraction

被引：334
作者：
Li, L. [1 ]
Li, T. [1 ]
Wang, S. M. [1 ]
Zhang, C. [1 ]
Zhu, S. N. [1 ]
机构：
[1] Nanjing Univ, Natl Lab Solid State Microstruct, Coll Phys, Coll Engn & Appl Sci, Nanjing 210093, Peoples R China
来源：
PHYSICAL REVIEW LETTERS | 2011年 / 107卷 / 12期
基金：
中国国家自然科学基金;
关键词：
WAVE; POLARITONS; OPTICS;
D O I：
10.1103/PhysRevLett.107.126804
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report an experimental realization of a plasmonic Airy beam, which is generated thoroughly on a silver surface. With a carefully designed nanoarray structure, such Airy beams come into being from an in-plane propagating surface plasmon polariton wave, exhibiting nonspreading, self-bending, and self-healing properties. Besides, a new phase-tuning method based on nonperfectly matched diffraction processes is proposed to generate and modulate the beam almost at will. This unique plasmonic Airy beam as well as the generation method would significantly promote the evolutions in in-plane surface plasmon polariton manipulations and indicate potential applications in lab-on-chip photonic integrations.
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页数：4
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