Superconductor-Semiconductor Metamaterial Photonic Crystals

Aly, Arafa H.; Sabra, Walied

doi:10.1007/s10948-016-3478-2

Cited by 44 publications

(18 citation statements)

References 15 publications

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“…Moreover, there was an acceptable percent of the transmittance in presence of the damping coefficient in the frequency range of 5 THz to 12 THz, so that the percentage was equal to 40% at f = 5 THz, and it reached 80% at f = 11.27 THz. The utilized superconductor and semiconductor, which resulted in such well-behaved multi-channel transmittance peaks, are the main differences between the current study and [32]. Here, the desirable frequencies could be selectively chosen to be transmitted by the tunability of the structure.…”

Section: Fundingmentioning

confidence: 96%

“…Furthermore, many valuable studies have also used the approximation. On the other hand, the conductivity of a superconductor is defined as follows [32]:…”

Section: Theoretical Models and Basic Equationsmentioning

confidence: 99%

“…Srivastava [31] studied defect mode of the transmittance spectrum relevant to a 1DPC consisting of a high-and low-temperature superconductor. Aly and Sabra [32] theoretically reported a 1D metamaterial PC consisted of high-temperature superconductor and semiconductor constituents, which interacted with near-infrared waves. The structure filtered some parts of the frequency range of 0 GHz to 2.2 GHz.…”

Section: Introductionmentioning

confidence: 99%

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Wave Propagation in an Optimized Tunable Multi-channel Flter based on One-dimensional Nano Superconductor Photonic Crystal

Baseri

Keshavarz

2021

Preprint

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Although there has been a focus on THz lters so far, there is a signifcant defciency in advancing low-temperature THz lters. According to the needs, we proposed a tunable THz lter that selectively permits the desired incident frequencies to be propagated in relevance with our purpose. The presence of a low-temperature nano superconductor and an undoped semiconductor layers in the proposed structure resulted in a multi-channel THz lter, which could be highly tuned with several parameters such as lattice constants, applied temperature, etc. The achieved transmittance spectra revealed that the emerged transmittance couples and stacks follow exact regulations. Furthermore, the structure exhibited omnidirectional band-gaps for both TE and TM polarized waves. Moreover, the use of a central defect layer gave some transmittance defect modes in the forbidden areas. This structure could be used in some THz devices such as switches, optimized sensors as well as in space industry and telecommunications.

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Section: Fundingmentioning

confidence: 96%

“…Furthermore, many valuable studies have also used the approximation. On the other hand, the conductivity of a superconductor is defined as follows [32]:…”

Section: Theoretical Models and Basic Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Wave Propagation in an Optimized Tunable Multi-channel Flter based on One-dimensional Nano Superconductor Photonic Crystal

Baseri

Keshavarz

2021

Preprint

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“…In the past decades, the superconductor have introduced in photonic crystals due to their advantages and ability to reduce the damped EMWs instead of metal or normal materials. These new superconducting PCs provide an enlarged reflection bands can be tuned by the temperature of superconductor [11][12][13][14] . So, the response of system is mainly dependent on the London penetration depth, which is a function of the temperature and the external magnetic field as well [15][16][17] .…”

Section: Introductionmentioning

confidence: 99%

Tunability and Fano Resonance Properties in Different Types of One-Dimensional Superconductor Photonic Crystals

et al. 2021

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The Fano resonance and EIR properties in different topological one-dimensional superconductor photonic crystals has been investigated theoretically using the Transfer Matrix Method (TMM). Different types of periodic heterostructures are studied and they are designed by alternating pairs of superconductor materials such (Nb/BSCCO), (Rb 3 C 60 / YBa 2 Cu3O 7 ) and (K 3 C 60 /(BiPb) 2 Sr 2 Ca 2 Cu 3 O y ). All artificial periodic structures are sacked by dielectric cap layer at different induced fields. To exam the efficiency of the reported structures, different parameters are used for analysis such as layers thicknesses, temperature, angle of incidence, the kind of superconductor materials and the dielectric constant of the cap layer. The investigation results exhibit the presence of tunable Fano resonances and EIR resonance peak accompanied by asymmetrical line shape and they are very sensitive to the dielectric cap layer, the superconductor materials and the wave incidence angle.

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“…Now, the PC structures containing metamaterials are considered as metamaterial PCs, or in simple terms, MetaPCs. The fabulous features of the MetaPCs have been considerably overlooked in the recent decade [16][17][18][19][20]. Liviotti [21] applied a transformed wavelet to a T-M PC, and showed that this technique was successful in estimating the scaling exports and finding the wavevector associated with them.…”

Section: Introductionmentioning

confidence: 99%

Designing a One-Dimensional Photonic Crystal via Thue-Morse Sequence Containing Two Types of Double Negative Metamaterial

Baseri

Keshavarz

2021

Preprint

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This study investigates the propagating of electromagnetic waves through a one-dimensional quasi-photonic crystal with the transfer matrix method. Our proposed structure consists of two types of double negative metamaterials, organized according to the Thue-Morse sequence law. The results show that changing the structure via quasi-periodic arrangements makes the outcome more varied than applying the absolute periodic arrangement. Given that, our desirable results of interest are more conveniently achieved. The structure completely stops-both s and p polarization at the lower frequencies, for all incidence angles. It also partially stops s and p polarization, at higher frequencies. Moreover, the achieved transmittance spectrum contains several omnidirectional band-gaps, which remain invariant with changes in the incidence angle. The oscillation of the transmittance values also becomes more intense at higher orders of the period number. This study could pave the way for optimizing of photonic crystal circuits, splitters, switches, etc.

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Superconductor-Semiconductor Metamaterial Photonic Crystals

Cited by 44 publications

References 15 publications

Wave Propagation in an Optimized Tunable Multi-channel Flter based on One-dimensional Nano Superconductor Photonic Crystal

Wave Propagation in an Optimized Tunable Multi-channel Flter based on One-dimensional Nano Superconductor Photonic Crystal

Tunability and Fano Resonance Properties in Different Types of One-Dimensional Superconductor Photonic Crystals

Designing a One-Dimensional Photonic Crystal via Thue-Morse Sequence Containing Two Types of Double Negative Metamaterial

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