Journal
ACS OMEGA
Volume 6, Issue 44, Pages 29746-29751Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.1c04172
Keywords
-
Categories
Funding
- National Natural Science Foundation of China [61805127]
- Shandong Provincial Natural Science Foundation, China [ZR2019BF014]
- Fundamental Research Funds of Shandong University [2018TB002]
- China Postdoctoral Science Foundation-funded project [2015M582073]
- Postdoctoral Innovation Program of Shandong Province [201602017]
Ask authors/readers for more resources
Tunable extraordinary optical transmission (EOT) with graphene is achieved in the terahertz frequency regime using a novel metallic ring-rod nested structure, leading to the generation of double-enhanced transmission peaks primarily originating from the excitation of localized surface plasmon resonances (LSPRs). By regulating the Fermi energy (E-f) of the graphene, an adjustment from bimodal EOT to unimodal EOT is obtained, demonstrating promising application prospects in frequency-selective surfaces, communication, filtering, and radar.
Tunable extraordinary optical transmission (EOT) with graphene is realized using a novel metallic ring-rod nested structure in the terahertz frequency regime. The generated double-enhanced transmission peaks primarily originate from the excitation of localized surface plasmon resonances (LSPRs). On using graphene, the resonating surface plasmon distribution changes in the reaction plane, which disturbs the generation of LSPRs. By regulating the Fermi energy (E-f) of the graphene to reach a certain level, an adjustment from bimodal EOT to unimodal EOT is obtained. As the E-f of the graphene integrated beneath the rod increases to 0.5 eV, the transmittance of the peak at 2.42 THz decreases to 6%. Moreover, the transmission peak at 1.77 THz virtually disappears due to the E-f increasing to 0.7 eV when the graphene is placed beneath the ring. The significant tuning capabilities of the bimodal EOT indicate its promising application prospects in frequency-selective surfaces, communication, filtering, and radar.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available