Abstract

We propose a graphene-based plasmonic heterostructure in which a new class of plasmon polariton modes can be realized via fundamental coupling of conventional graphene plasmons (GPs) and spoof surface plasmons or radiation modes. We name these electromagnetic modes coupled graphene plasmon polaritons (CGPPs). It is found that the properties of the CGPPs can be tuned by the geometry of the heterostructure, the material used to fill the holes, and the electron density in graphene. Most interestingly, we show that it is possible to achieve CGPPs with about 10 times enhancement of wave localization or about 300 times enhancement of propagation length, compared to usual GPs through varying device parameters. These features can be applied to tunable terahertz and infrared plasmonic devices.

© 2015 Optical Society of America

Quasi-phase matching for efficient long-range plasmonic third-harmonic generation via graphene

Hadiseh Nasari and Mohammad Sadegh Abrishamian
Opt. Lett. 40(23) 5510-5513 (2015)

Toward integrated electrically controllable directional coupling based on dielectric loaded graphene plasmonic waveguide

W. Xu, Z. H. Zhu, K. Liu, J. F. Zhang, X. D. Yuan, Q. S. Lu, and S. Q. Qin
Opt. Lett. 40(7) 1603-1606 (2015)

TE-polarized graphene modes sustained by photonic crystal structures

I. Degli-Eredi, J. E. Sipe, and N. Vermeulen
Opt. Lett. 40(9) 2076-2079 (2015)

Graphene-based plasmonic modulator on a groove-structured metasurface

Yulin Wang, Tao Li, and Shining Zhu
Opt. Lett. 42(12) 2247-2250 (2017)

Near-infrared electro-optic modulator based on plasmonic graphene

Susbhan Das, Alessandro Salandrino, Judy Z. Wu, and Rongqing Hui
Opt. Lett. 40(7) 1516-1519 (2015)