Helicity dependent directional surface plasmon polariton excitation using a metasurface with interfacial phase discontinuity

Lingling Huang; Xianzhong Chen; Benfeng Bai; Qiaofeng Tan; Guofan Jin; Thomas Zentgraf; Shuang Zhang

doi:10.1038/lsa.2013.26

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Helicity dependent directional surface plasmon polariton excitation using a metasurface with interfacial phase discontinuity

Original Articles

- Helicity dependent directional surface plasmon polariton excitation using a metasurface with interfacial phase discontinuity
- Helicity dependent directional surface plasmon polariton excitation using a metasurface with interfacial phase discontinuity
- LSA 2013年2卷第1-2期
- Affiliations：
  
  1.School of Physics & Astronomy, University of Birmingham, Birmingham B15 2TT, UK
  2.State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084, China
  3.Department of Physics, University of Paderborn, D-33098 Paderborn, Germany
- Author bio：
  
  Dr S Zhang, School of Physics & Astronomy, University of Birmingham, Birmingham B15 2TT, UK Email: s.zhang@bham.ac.uk
- Funds：
- DOI：10.1038/lsa.2013.26
  中图分类号：
- 纸质出版日期：2013-06，
  
  网络出版日期：2013-03-29，
  
  收稿日期：2012-12-18，
  
  录用日期：2013-02-28
- Accepted：
Scan QR Code
Helicity dependent directional surface plasmon polariton excitation using a metasurface with interfacial phase discontinuity[J]. LSA, 2013,2(1-2).

Huang, L. L. et al. Helicity dependent directional surface plasmon polariton excitation using a metasurface with interfacial phase discontinuity. Light: Science & Applications, 2, e70 (2013).
Helicity dependent directional surface plasmon polariton excitation using a metasurface with interfacial phase discontinuity[J]. LSA, 2013,2(1-2). DOI： 10.1038/lsa.2013.26.

Huang, L. L. et al. Helicity dependent directional surface plasmon polariton excitation using a metasurface with interfacial phase discontinuity. Light: Science & Applications, 2, e70 (2013). DOI： 10.1038/lsa.2013.26.

摘要

Abstract

Surface plasmon polaritons (SPPs) have been widely exploited in various scientific communities

ranging from physics

chemistry to biology

due to the strong confinement of light to the metal surface. For many applications

it is important that the free space photon can be coupled to SPPs in a controllable manner. In this Letter

we apply the concept of interfacial phase discontinuity for circularly polarizations on a metasurface to the design of a novel type of polarization-dependent SPP unidirectional excitation at normal incidence. Selective unidirectional excitation of SPPs along opposite directions is experimentally demonstrated at optical frequencies by simply switching the helicity of the incident light. This approach

in conjunction with dynamic polarization modulation techniques

opens gateway towards integrated plasmonic circuits with electrically reconfigurable functionalities.

关键词

Keywords

metamaterialsmetasurfacesurface plasmon

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