Terahertz plasmonic sensing based on tunable multispectral plasmon-induced transparency and absorption in graphene metamaterials

Li, Min; Xiong, Cuixiu; Liu, Chao; Zeng, Biao; Ruan, Banxian; Zhang, Baihui; Gao, Enduo; Li, Hongjian

doi:10.1088/1361-6463/abec0c

Cited by 13 publications

(5 citation statements)

References 42 publications

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“…Combining photonic crystals with graphene can achieve various optical properties, such as optical Tamm states [14,15] and surface plasmon [16][17][18]. The performance of graphene photonic crystal structure can be achieved not only by changing the carrier concentration of graphene, but also by different patterns and layers.…”

Section: Introductionmentioning

confidence: 99%

Tunable bidirectional perfect THz absorber realized by graphene-based one-dimensional photonic crystals

et al. 2023

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In this paper, a perfect absorption structure of graphene-based one-dimensional photonic crystals (1DPC) with tunable absorption channels and absorptivity is proposed. The proposed structure can achieve four perfect absorption peaks with the absorptivity of 99.31%, 99.88%, 99.74% and 99.32% at the same time, and the absorptivity of all absorption peaks is more than 95%. By tuning the period number of 1DPC, the number of absorption peaks and absorption efficiency can be changed. In addition, we use this structure to design two different bidirectional absorbers. The designed bidirectional absorber can tailor the perfect absorption frequency with the absorptivity of more than 99.51%, and can change the absorption channel from single channel to double channel and double channel to multi-channel under the forward and backward incidence. This work not only fills the gap in the design of bidirectional perfect absorbers for 1DPC, but also provides a scheme for the design of multifunctional devices.

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Section: Introductionmentioning

confidence: 99%

Tunable bidirectional perfect THz absorber realized by graphene-based one-dimensional photonic crystals

et al. 2023

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“…The max modulation depth is nearly 100%, which is superior to the modulators presented in ref. 10, 28 and 29.…”

Section: Introductionmentioning

confidence: 99%

Generation of symmetry-protected bound states in the continuum in a graphene plasmonic waveguide system for optical switching

Ruan

et al. 2023

Phys. Chem. Chem. Phys.

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“…Nevertheless, just the single-band PIT effect can be achieved from many graphene-based systems. Thus, the attainment of dynamically tunable multiple-PIT effect via the use of a monolayer graphene structure within the THz band remains a challenge [35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Dynamically tunable multiple plasmon-induced transparency effect based on monolayer graphene structure system with rectangular defect cavities

Wang,

Yang,

Zeng

et al. 2023

Phys. Scr.

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In this article, a dynamically tunable multiple plasmon-induced transparency (PIT) effect in monolayer graphene structure system with rectangular defect cavities is investigated both theoretically and numerically. Because the graphene of our structure exists in a continuous form, the Fermi level of the graphene can be dynamically tuned by simply applying a bias voltage. The expressions of the theoretical transmittance are correctly deduced, and the fitting theoretical results are very consistent with the numerical simulation data. When the Fermi level of the graphene is increased from 0.8 eV to 1.2 eV, the group index of the dual-PIT system is controlled between 383 and 766. Alternatively, the group index of the triple-PIT system is maintained between 445 and 812. Moreover, the maximum group index can reach 812 at 1.2 eV, which shows that it can be designed as an excellent slow light device. Therefore, the proposed structures and results may provide strong guidance towards multichannel optical filters, dynamically tunable and excellent slow light and light storage devices.

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Terahertz plasmonic sensing based on tunable multispectral plasmon-induced transparency and absorption in graphene metamaterials

Cited by 13 publications

References 42 publications

Tunable bidirectional perfect THz absorber realized by graphene-based one-dimensional photonic crystals

Tunable bidirectional perfect THz absorber realized by graphene-based one-dimensional photonic crystals

Generation of symmetry-protected bound states in the continuum in a graphene plasmonic waveguide system for optical switching

Dynamically tunable multiple plasmon-induced transparency effect based on monolayer graphene structure system with rectangular defect cavities

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