Abstract

Coupling and hybridization of plasmon polaritons can commonly occur in graphene plasmonic nanostructures, providing new possibilities for developing many novel plasmonic optoelectronic devices. Here we have theoretically investigated the longitudinal plasmonic coupling between localized and delocalized surface plasmon polaritons in graphene nanoribbon arrays and monolayer structures in the mid-infrared region. It has been demonstrated that vertical plasmonic coupling can be actively controlled by either the geometric parameters or the Fermi energy in graphene, allowing for strong light–matter interaction. Thanks to the strong plasmon coupling, dual-band perfect absorption with A100% and large Rabi splitting exceeding 17.2 meV have been obtained in the absorption spectra of this hybrid system. More intriguingly, we found, by varying the distance between the graphene sheet and the metallic substrate, that periodic spectral nodes can emerge in absorption response of the hybrid mode, which was explained by the mechanism of longitudinal microcavity resonance in this coupled system. The controllable plasmonic coupling and ultrahigh dual-band absorption capability offered by this coupled structure open new avenues for designing tunable multi-channel graphene optoelectronic devices with high performance.

© 2019 Optical Society of America

Full Article  |  PDF Article
More Like This
Strong longitudinal coupling of Tamm plasmon polaritons in graphene/DBR/Ag hybrid structure

Jigang Hu, Enxu Yao, Weiqiang Xie, Wei Liu, Dongmei Li, Yonghua Lu, and Qiwen Zhan
Opt. Express 27(13) 18642-18652 (2019)

Tunable dual-band mid-infrared absorber based on the coupling of a graphene surface plasmon polariton and Tamm phonon-polariton

Jing Han, Yabin Shao, Chunyu Chen, Jun Wang, Yang Gao, and Yachen Gao
Opt. Express 29(10) 15228-15238 (2021)

Active tuning of the hybridization effects of mid-infrared surface plasmon resonance in a black phosphorus sheet array and a metal grating slit

Yan Huang, Yan Liu, Cizhe Fang, Yao Shao, Genquan Han, Jincheng Zhang, and Yue Hao
Opt. Mater. Express 10(1) 14-28 (2020)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (7)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription