Abstract

We investigate the tuning of the coupling of surface plasmon polaritons between two spatially separated graphene layers. We demonstrate that by slightly changing the chemical potential, a graphene coupler can switch from the bar to the cross state; as a consequence, the coupling coefficient in such structures can be easily controlled by means of an applied electrical signal.

© 2013 Optical Society of America

Coupling dynamics of 1D surface plasmon polaritons in hybrid graphene systems

Costantino De Angelis, Andrea Locatelli, Andrea Mutti, and Alejandro Aceves
Opt. Lett. 41(3) 480-483 (2016)

Graphene-based meta-coupler for direction-controllable emission of surface plasmons

Hua Zhu, Ming Deng, Shuqi Chen, and Lin Chen
Opt. Lett. 44(13) 3382-3385 (2019)

Tunable surface plasmon polaritons in the graphene and metamaterials structures

Huifang Zhang, Zeming Zhang, Weiwei Song, Yong Li, Ying He, Yan Wang, and Lihua Bai
J. Opt. Soc. Am. B 32(7) 1421-1428 (2015)

High-efficiency couplers for graphene surface plasmon polaritons in the mid-infrared region

Longfang Ye, Kehan Sui, and Hao Feng
Opt. Lett. 45(2) 264-267 (2020)

Nonlinear optics of surface plasmon polaritons in subwavelength graphene ribbon resonators

Hadiseh Nasari, Mohammad Sadegh Abrishamian, and Pierre Berini
Opt. Express 24(1) 708-723 (2016)