Volume 530, 1 March 2023, 129140Author links open overlay panelAbstract

Perfect absorption in graphene-based nanostructures has attracted much attention due to its potential applications in novel photodectors and light modulators with high integrability. Based on critical coupling theory, we propose a graphene-based dielectric metasurface, demonstrating graphene-assisted single-band to multi-band perfect absorption with independent band selectivity in the near-infrared range. The proposed graphene-metasurface absorber can support a delocalized guided mode resonance and a series of localized cavity modes with different order, which can be selectively excited at will by simply tuning the geometry of the system, thus realizing an independent control of single-band to multi-band perfect absorption at critical coupling condition. The proposed hybrid structure possesses simple structural configuration and is easily accessible by standard nano-fabrication technique. Our results may find potential applications in the design of novel photoelectronic devices such as graphene-based photodectors or light modulators with flexible multi-band selectivity for desired wavelength.

Section snippetsDeclaration of Competing Interest

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Acknowledgments

This work was supported by the National Natural Science Foundation of China (Grants No. 11974254), and the Innovation Program of Sichuan University (Grant No. 2018SCUH0074).

References (38)GrigorenkoA.N. et al.Graphene plasmonics

Nat. Photon.

(2012)

BrarV.W. et al.Highly confined tunable mid-infrared plasmonics in graphene nanoresonators

Nano Lett.

(2013)

ThongrattanasiriS. et al.Complete optical absorption in periodically patterned graphene

Phys. Rev. Lett.

(2012)

GaoW.L. et al.Excitation of plasmonic waves in graphene by guided-mode resonances

ACS Nano

(2012)

XiaS.X. et al.Multi-band perfect plasmonic absorptions using rectangular graphene gratings

Opt. Lett.

(2017)

XiaS. et al.Plasmonically induced transparency in phase-coupled graphene nanoribbons

Phys. Rev. B

(2022)

XiaS.-X. et al.Plasmonically induced transparency in double-layered graphene nanoribbons

Photon. Res.

(2018)

LiuZ. et al.Double narrowband induced perfect absorption photonic sensor based on graphene-dielectric-gold hybrid metamaterial

Nanoscale Res. Lett.

(2022)

ZhangX. et al.Polarization-sensitive triple plasmon-induced transparency with synchronous and asynchronous switching based on monolayer graphene metamaterials

Opt. Express

(2020)

View full text

© 2022 Elsevier B.V. All rights reserved.