Spoof surface plasmon photonics

Francisco J. Garcia-Vidal, Antonio I. Fernández-Domínguez, Luis Martin-Moreno, Hao Chi Zhang, Wenxuan Tang, Ruwen Peng, and Tie Jun Cui
Rev. Mod. Phys. 94, 025004 – Published 20 May 2022

Abstract

In undergraduate courses on classical electromagnetism, it is taught that a perfect conductor expels the electromagnetic (EM) field, and hence its surface is not able to support the propagation of bound EM waves. However, when the surface of a perfect conductor is structured at a length scale much smaller than the operating wavelength, geometrically induced surface EM modes can be supported. Owing to their similarities with the surface plasmon polaritons (SPPs) in the optical regime, these surface EM modes were named spoof surface plasmons. The concept of spoof surface plasmons has opened up a new line of research within plasmonics with the aim of transferring all the potentialities of SPPs in the optical regime to lower frequencies (microwave, terahertz, and midinfrared regimes) in which a metal behaves as a quasiperfect conductor. In recent years, several research groups have extended this concept from planar surfaces to waveguides, and eventually to resonators, covering the entire range of structures studied in standard plasmonics. This review provides a detailed perspective on the recent developments in spoof surface plasmon photonics from both the fundamental and applied sides.

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  • Received 29 July 2021

DOI:https://doi.org/10.1103/RevModPhys.94.025004

© 2022 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Francisco J. Garcia-Vidal*

  • Departamento de Física Teórica de la Materia Condensada and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, Madrid 28049, Spain and Donostia International Physics Center (DIPC), Donostia/San Sebastián 20018, Spain

Antonio I. Fernández-Domínguez

  • Departamento de Física Teórica de la Materia Condensada and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, Madrid 28049, Spain

Luis Martin-Moreno

  • Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain and Departamento de Física de la Materia Condensada, Universidad de Zaragoza, Zaragoza 50009, Spain

Hao Chi Zhang and Wenxuan Tang

  • State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China

Ruwen Peng

  • National Laboratory of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China

Tie Jun Cui

  • State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China

  • *fj.garcia@uam.es
  • tjcui@seu.edu.cn

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Issue

Vol. 94, Iss. 2 — April - June 2022

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