All-Dielectric Dual-Band Metamaterial Absorber Based on Ring Nanocavity in Visible Region for Sensing Applications

Liu, Fei; Zou, Meiling; Feng, Zhenjie; Ni, Bo; Ye, Baisong; Wang, Yunji

doi:10.3390/photonics10010058

Cited by 6 publications

(2 citation statements)

References 33 publications

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“…To understand the mechanism of the perfect absorber, we used the impedance matching principle. When the light source is fired vertically as shown in Figure 1, the reflection of the metamaterial absorber is [37]:…”

Section: Structure Design and Methodsmentioning

confidence: 99%

Polarization-Angle-Insensitive Dual-Band Perfect Metamaterial Absorbers in the Visible Region: A Theoretical Study

Xiong,

Li,

et al. 2024

Coatings

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Metamaterial absorbers have been studied extensively due to their potential applications in the field of photonics. In this paper, we propose a simulation study of a polarization-angle-insensitive dual-band perfect metamaterial absorber with absorption peaks at 654 and 781 nm, respectively. By adjusting the structure parameters, dielectric thickness, and refractive index, the obtained absorber has high scalability in the visible wavelength region. To further understand the performance of the cross-structure absorber, analysis of its electric and magnetic field distribution shows that it produces two resonance modes leading to different absorption properties. In addition, the position and intensity of the absorption peaks were found to be unchanged with increasing incident polarization angle, indicating that the absorber is insensitive to the polarization of the incident light. The absorber has great flexibility and has good application potential in sensing and detection.

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Section: Structure Design and Methodsmentioning

confidence: 99%

Polarization-Angle-Insensitive Dual-Band Perfect Metamaterial Absorbers in the Visible Region: A Theoretical Study

Xiong,

Li,

et al. 2024

Coatings

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“…The use of dielectric materials to design the structure of the all-dielectric metamaterial absorber can minimize the loss of the dielectric material to the incident electromagnetic wave. With the gradually mature medium manufacturing process and relatively low price, the all-dielectric metamaterial absorber has received widespread attention [30][31][32][33]. In 2020, Si [34] et al designed a broadband perfect absorber based on all-dielectric silicon, which achieved more than 95% perfect absorption between 564 nm and 584 nm, and more than 85% absorption results can also be obtained through experimental fabrication.…”

Section: Introductionmentioning

confidence: 99%

Polarization Selective Broad/Triple Band Absorber Based on All-Dielectric Metamaterials in Long Infrared Regime

Zou

Zhou

et al. 2023

Photonics

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In this paper, a polarization selective broad/triple-band metamaterial absorber based on SiO2 all-dielectric is designed and studied. The absorber works in a long infrared band (8–14 μm). It is composed of cuboid and trapezoidal silica structures in the upper layer and metal plates in the lower layer. We calculate the absorption results of the metamaterial absorber at different polarization angles as the polarization angle of incident light increases from 0° to 90°; that is, the light changes from Ex polarization to Ey polarization. The results show that the absorption rate of the structure is more than 90% in the range of 8.16 to 9.61 μm when the polarization angle is 0°. When the polarization angle of the incident light is less than 45°, the absorption result of the absorber does not change significantly. When the polarization angle of the incident light is greater than 45°, three absorption peaks appear in the long infrared band, realizing the selectivity of the polarization of the incident light. When the polarization angle increases to 90°, the absorptivity of the two absorption peaks at λ = 9.7 μm and 12.3 μm reaches more than 85%. In addition, the sensitivity analysis of the length, width, and thickness of the all-dielectric metamaterial absorber and the calculation of the electric field of this structure are also carried out. The designed all-dielectric metamaterial absorber has polarization selection and perfect absorption characteristics and has a broad application prospect.

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Perfect Absorber Based on Epsilon-Near-Zero Metamaterial as a Refractive Index Sensor

2023

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All-Dielectric Dual-Band Metamaterial Absorber Based on Ring Nanocavity in Visible Region for Sensing Applications

Cited by 6 publications

References 33 publications

Polarization-Angle-Insensitive Dual-Band Perfect Metamaterial Absorbers in the Visible Region: A Theoretical Study

Polarization-Angle-Insensitive Dual-Band Perfect Metamaterial Absorbers in the Visible Region: A Theoretical Study

Polarization Selective Broad/Triple Band Absorber Based on All-Dielectric Metamaterials in Long Infrared Regime

Perfect Absorber Based on Epsilon-Near-Zero Metamaterial as a Refractive Index Sensor

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