Designing a double-negative metamaterial photonic crystal using the Thue–Morse sequence

Baseri, Ali; Keshavarz, Alireza

doi:10.1007/s10825-021-01836-y

Cited by 6 publications

(5 citation statements)

References 27 publications

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“…On the other hand, through the frequency band from 3.5 to 3.78 GHz, the values of are positive while those of are negative, indicating that it is an epsilon-negative (ENG) metamaterial. Both and of the layer get a positive sign at frequency f > 3.78 GHz, and the layer takes positive index material (PIM) 53 . Thus, in our study, we focus on the region of frequencies that give the DNG metamaterial in our structure.…”

Section: Resultsmentioning

confidence: 99%

“…In particular, the permittivity of NC materials could be tuned by changing some related parameters such as the core radius of NPs, filling fractions and the host medium 34 – 38 . As a result, when these materials compared with dielectric and superconductor materials, these materials could be an excellent candidate 9 , 49 , 53 . Notably, the inclusion of dielectrics with MM may have a limited contribution towards the tunability of PBGs that could lead to a limited role of PCs in many applications through this frequency region 9 , 53 .…”

Section: Introductionmentioning

confidence: 99%

“…As a result, when these materials compared with dielectric and superconductor materials, these materials could be an excellent candidate 9 , 49 , 53 . Notably, the inclusion of dielectrics with MM may have a limited contribution towards the tunability of PBGs that could lead to a limited role of PCs in many applications through this frequency region 9 , 53 . Furthermore, the inclusion of superconductors could provide some peculiar properties for the resulting PBGs 49 .…”

Section: Introductionmentioning

confidence: 99%

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Transmittance properties of one-dimensional metamaterial nanocomposite photonic crystal in GHz range

Mohamed

El-Sayed

Mehaney

et al. 2022

Sci Rep

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We have theoretically demonstrated and explored the transmittance characteristics of a one-dimensional binary photonic crystal composed of metamaterial (MM) and nanocomposite (NC) layers. The NC layer was designed from silver nanoparticles (Ag-NPs) in a host material as Yttrium oxide (Y2O3). Using the transfer matrix approach (TMM), the optical properties of a one-dimensional binary periodic structure having MM and NC layers in the Giga Hertz (GHz) range were examined. The filling fractions of nanoparticles have been explored to see their effect on the effective permittivity of NC materials. Furthermore, the transmittance properties of the suggested structure were investigated at various incident angles for the transverse electric (TE) polarization. In addition to that, different parameters, such as the thickness of the MM layer, the permittivity of the host dielectric material, the filling fraction, and the thickness of the NC layer are also taken into account. We also discussed the effect of these parameters on the width of the photonic bandgap (PBG). With the optimum values of the optical parameters of NC layer, this research could open the way for better photonic crystal circuits, splitters, switches and others.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Transmittance properties of one-dimensional metamaterial nanocomposite photonic crystal in GHz range

Mohamed

El-Sayed

Mehaney

et al. 2022

Sci Rep

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show abstract

“…Tue-Morse [34,35] and Fibonacci structures are often used in the design of quasi-periodic structures for acoustic or electromagnetic metamaterials. As a typical one-dimensional quasi-periodic structure, the Fibonacci series is an ideal structure for the exploration of quasi-periodic metamaterials due to its close association with the golden section ratio and its potential applications in various elds, including nature and physics [36] .…”

Section: Introductionmentioning

confidence: 99%

Fluctuation characteristics and topological interface states in the quasi-periodic structures of shallow-water waves

Guan,

Xiao,

Liu

et al. 2024

Preprint

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Compared with periodic structures, quasi-periodic structures have superior band gap properties and topological interface states. In this paper, a one-dimensional quasi-periodic Fibonacci water wave metamaterial model that can be used to apply quasi-periodic structures to shallow-water wave systems is presented. The fluctuation characteristics of periodic and quasi-periodic structures are examined using finite element numerical calculations based on the shallow-water wave equation. The research results show that the band characteristics of quasi-periodic structures are complex, enabling flexible control of the propagation of shallow-water waves. Furthermore, the mirror-symmetrical design of Fibonacci quasi-periodic water wave metamaterials was created to engineer the topological interface states in shallow-water wave systems, ultimately achieving successful localization of wave energy. This research will greatly enrich our understanding of topology, expand the potential applications of quasi-periodic structures, and provide new insights for manipulating water waves and harvesting energy.

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“…In this study, we investigate the power spectrum of the suggested multilayer structure's thermal radiation using a novel type of configuration called MQP arrangement [26]. In this arrangement, different types of QP arrangement could be utilized as follows; Fibonacci (FB), maximum length (ML), Thue-Morse (T-M), and double period (DP) sequences.…”

Section: Introductionmentioning

confidence: 99%

Controlling Thermal Radiation in Photonic Quasicrystals Containing Epsilon-Negative Metamaterials

Mikaeeli,

Keshavarz,

Baseri

et al. 2023

Applied Sciences

Self Cite

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The transfer matrix approach is used to study the optical characteristics of thermal radiation in a one-dimensional photonic crystal (1DPC) with metamaterial. In this method, every layer within the multilayer structure is associated with its specific transfer matrix. Subsequently, it links the incident beam to the next layer from the previous layer. The proposed structure is composed of three types of materials, namely InSb, ZrO2, and Teflon, and one type of epsilon-negative (ENG) metamaterial and is organized in accordance with the laws of sequencing. The semiconductor InSb has the capability to adjust bandgaps by utilizing its thermally responsive permittivity, allowing for tunability with temperature changes, while the metamaterial modifies the bandgaps according to its negative permittivity. Using quasi-periodic shows that, in contrast to employing absolute periodic arrangements, it produces more diverse results in modifying the structure’s band-gaps. Using a new sequence arrangement mixed-quasi-periodic (MQP) structure, which is a combination of two quasi periodic structures, provides more freedom of action for modifying the properties of the medium than periodic arrangements do. The ability to control thermal radiation is crucial in a range of optical applications since it is frequently unpolarized and incoherent in both space and time. These configurations allow for the suppression and emission of thermal radiation in a certain frequency range due to their fundamental nature as photonic band-gaps (PBGs). So, we are able to control the thermal radiation by changing the structure arrangement. Here, the We use an indirect method based on the second Kirchoff law for thermal radiation to investigate the emittance of black bodies based on a well-known transfer matrix technique. We can measure the transmission and reflection coefficients with associated transmittance and reflectance, T and R, respectively. Here, the effects of several parameters, including the input beam’s angle, polarization, and period on tailoring the thermal radiation spectrum of the proposed structure, are studied. The results show that in some frequency bands, thermal radiation exceeded the black body limit. There were also good results in terms of complete stop bands for both TE and TM polarization at different incident angles and frequencies. This study produces encouraging results for the creation of Terahertz (THz) filters and selective thermal emitters. The tunability of our media is a crucial factor that influences the efficiency and function of our desired photonic outcome. Therefore, exploiting MQP sequences or arrangements is a promising strategy, as it allows us to rearrange our media more flexibly than quasi-periodic sequences and thus achieve our optimal result.

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Designing a double-negative metamaterial photonic crystal using the Thue–Morse sequence

Cited by 6 publications

References 27 publications

Transmittance properties of one-dimensional metamaterial nanocomposite photonic crystal in GHz range

Transmittance properties of one-dimensional metamaterial nanocomposite photonic crystal in GHz range

Fluctuation characteristics and topological interface states in the quasi-periodic structures of shallow-water waves

Controlling Thermal Radiation in Photonic Quasicrystals Containing Epsilon-Negative Metamaterials

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