Theoretical design of a triple-band perfect metamaterial absorber based on graphene with wide-angle insensitivity

Pan, Mingyang; Huang, Huazhu; Fan, Baodian; Chen, Wenzhi; Li, Shuai; Xie, Qinglai; Xu, Feng; Wei, Dongwei; Fang, Jun

doi:10.1016/j.rinp.2021.104037

Cited by 19 publications

(5 citation statements)

References 66 publications

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“…One of the characteristics that makes the absorber structure unique for different applications is the insensitivity of the structure to polarization [36] and incident angle [37].…”

Section: Fig 1 Exfoliation Of Graphite To Create Graphenementioning

confidence: 99%

Multiband Polarization Insensitive and Tunable Terahertz Metamaterial Perfect Absorber Based on The Heterogeneous Structure of Graphene

Razani

Rezaei

2021

Preprint

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In this paper, we present and investigate a multi-band metamaterial perfect absorber (MPA) based on the heterogeneous structure of graphene with Cu and SiO 2 substrates. The top layer of structure consist of one graphene disk at the center and four graphene solid triangle with semicircular cuts on them that surround the central disk. This heterogeneous structure causes us to achieve 97.06%, 94.71%, 99.7% and 99.5% perfect absorptions peaks at 28239.7 nm, 31048.9 nm, 50898.6 nm and 70689.1 nm, respectively. The absorption mechanism based on electric fields has been investigated. We can shift the wavelength of absorption peaks to our required wavelength by changing the Fermi level (µc) of graphene. Two absorption peaks of this absorber remain unchanged in different incident angle. In addition, very important point about this structure is that it is not sensitive to polarization and this feature makes the proposed absorber very suitable for applications such as imaging, filtering, sensing and detecting applications.

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“…One of the characteristics that makes the absorber structure unique for different applications is the insensitivity of the structure to polarization [36] and incident angle [37].…”

Section: Fig 1 Exfoliation Of Graphite To Create Graphenementioning

confidence: 99%

Multiband Polarization Insensitive and Tunable Terahertz Metamaterial Perfect Absorber Based on The Heterogeneous Structure of Graphene

Razani

Rezaei

2021

Preprint

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“…He reported a planar metamaterial consisting of a gold bar and two gold wires, which exhibited a dual-spectral EIT effect owing to the coupling of bright and dark modes [16]. Pan proposed an adjustable three-band absorber on the ground of graphene periodic array structure, which can achieve the dynamic regulation of absorptive character by altering the graphene's gate voltage [17]. Liu proposed a switchable bifunctional terahertz metamaterial absorber on the basis graphene and STO, which could achieve broadband absorption by adjusting the graphene's Fermi energy level and can tune the center frequency of narrowband absorption through controlling STO's temperature [18].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Modulation of Multilayer Structured Metamaterials Based on Vanadium Dioxide

Zhu,

Cao,

Yuan

et al. 2023

J. Phys.: Conf. Ser.

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In order to achieve a better characterized electromagnetic induction transparency (EIT) effect, a temperature-controlled modulated three-layer terahertz (THz) metamaterial structure based on the phase transition properties of vanadium dioxide (VO2) is designed, which is capable of demonstrating independently tunable multi-band broadband EIT effect. Simulations are applied to optimize the structure parametrically by varying the C-type resonator’s the length of the two arms and the interlayer spacing of each dielectric layer. The overall structure coupling is changed by varying the conductivity of the temperature-regulated VO2 to achieve independent dynamic modulation. Finally, the EIT effect is achieved at more than 85% of the frequencies in the 0.8 THz to 2.2 THz region, and the transparency exceeds 0.8. This independently tunable and broadband characteristic is of great interest for the application of the EIT effect.

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“…Compared to refractive index sensors relying only on single absorption peak, sensors with multiple absorption peaks can be used to monitor multiple modes of interest, and these multiple absorption peaks can generate more sensing information, thus reducing the error and improving the reliability of data [12,24,25]. For instance, refractive index sensors based on patterned graphene or gold layers exhibit three absorption peaks in the mid-IR regime [11,26] and can provide reliable sensing data associated with multiple vibrational signatures of targeted molecules. To date, borophene refractive index sensors with multiple absorption peaks have not been reported.…”

Section: Introductionmentioning

confidence: 99%

Tunable multi-peak perfect absorbers based on borophene for high-performance near-infrared refractive index sensing

Jian

Zhao

et al. 2022

Optical Materials

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Theoretical design of a triple-band perfect metamaterial absorber based on graphene with wide-angle insensitivity

Cited by 19 publications

References 66 publications

Multiband Polarization Insensitive and Tunable Terahertz Metamaterial Perfect Absorber Based on The Heterogeneous Structure of Graphene

Multiband Polarization Insensitive and Tunable Terahertz Metamaterial Perfect Absorber Based on The Heterogeneous Structure of Graphene

Dynamic Modulation of Multilayer Structured Metamaterials Based on Vanadium Dioxide

Tunable multi-peak perfect absorbers based on borophene for high-performance near-infrared refractive index sensing

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