Highly tunable and sensitive plasmon induced transparency modulator with graphene metasurface

Fan, Chunzhen; Jiang, Wenya; Yin, Huaiyuan; Zhan, Ying; Wang, Jiahao

doi:10.1016/j.physe.2022.115389

Cited by 13 publications

(2 citation statements)

References 48 publications

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“…By introducing two plasmon 'atoms' that support the radiation state and the dark state respectively, the EIT plasmon 'molecule' can be formed. The coupling between the radiation state and the dark state can induce a transparent window with strong dispersion and low absorption [13,14]; The second type is caused by destructive interference between the radiation states of two direct paths [15,16]. Regardless of the type, near-field coupling between two nanoantennas or resonators is essential for observing EIT spectra.…”

Section: Introductionmentioning

confidence: 99%

Analog electromagnetic induced transparency of T-type Si-based metamaterial and its applications

He,

Wang,

Zhang

et al. 2024

Phys. Scr.

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A T-type silicon-based metamaterial is proposed, which realizes electromagnetically induced transparency (EIT) by using the asymmetry of its structure. This dielectric metamaterial exhibits an ultranarrow EIT transparent window, with a transmittance of 91% and a Q factor of 180. Measuring its sensing performance, a refractive index sensor with a sensitivity of 466 nm/RIU is obtained. In addition, by analyzing the dispersion characteristics of the structure, the maximum group delay value is 2.84ps, and the corresponding group refractive index is 4250. Therefore, dielectric metamaterials with this structure are expected to be used in refractive index sensing and slow light devices.

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Section: Introductionmentioning

confidence: 99%

Analog electromagnetic induced transparency of T-type Si-based metamaterial and its applications

He,

Wang,

Zhang

et al. 2024

Phys. Scr.

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“…PIT not only delivers the quantum phenomena to the realm of classical optics, it also overcomes the limitations related to EIT [4][5][6]. PIT involves the manipulation of light transmission in metamaterials through the interaction of plasmonic resonances with constituent unit cells [7][8][9]. In the early stage, the constructed metamaterials primarily utilize the metallic or dielectric unit cells [10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Tunable plasmon-induced transparency in anisotropic graphene-black phosphorus photonic device for high-performance sensors and switchers

Wang,

Xie,

Fan

2024

J. Phys. D: Appl. Phys.

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A novel photonic device composed of graphene and black phosphorus (G-BP) has been proposed, which achieves high-performance plasmon-induced transparency (PIT) effect within the THz range and maintains substantial tunability and anisotropy. The anisotropy of the PIT effect arises from the near-field coupling between two bright modes characterized by distinct effective electron masses of BP, resulting transparency window at 33.35 THz for TE polarization and at 26.92 THz for TM polarization. Through the modulation of Fermi energy in graphene, doping levels of BP and geometric parameters separately, a tunable transparency window is achieved. Notably, the convergence or divergence of the anisotropic transparency windows can be well manipulated with different BP doping levels. Furthermore, the proposed G-BP photonic device exhibits a high sensitivity to changes in the surrounding refractive index and substrates, with a maximum sensitivity of 12.04 THz/RI, rendering it suitable for sensor applications. Overall, the proposed photonic device exhibits notable PIT effects characterized by high anisotropic performance, substantial tunability, great sensitivity, and stability, making it a promising candidate for applications in sensors, polarizers, and switchers.

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A multi-functional tunable terahertz graphene metamaterial based on plasmon-induced transparency

Yang,

Fan,

Zhao

et al. 2024

Diamond and Related Materials

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Highly tunable and sensitive plasmon induced transparency modulator with graphene metasurface

Cited by 13 publications

References 48 publications

Analog electromagnetic induced transparency of T-type Si-based metamaterial and its applications

Analog electromagnetic induced transparency of T-type Si-based metamaterial and its applications

Tunable plasmon-induced transparency in anisotropic graphene-black phosphorus photonic device for high-performance sensors and switchers

A multi-functional tunable terahertz graphene metamaterial based on plasmon-induced transparency

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