Photonic band gaps of a two-dimensional square lattice composed by superconducting hollow rods

Diaz-Valencia, B. F.; Calero, J.

doi:10.1016/j.physc.2014.07.012

Cited by 22 publications

(5 citation statements)

References 32 publications

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“…This implies the absence of transmission for signals with frequencies within a given interval of values. Such a property is highly useful in applications involving optical devices [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. For these applications, it is essential to tune the properties of PBGs and to obtain the widest possible band gaps.…”

Section: Introductionmentioning

confidence: 99%

“…For example, metals exhibit inherent losses, which are caused by the extinction coefficient. To overcome these problems, a variety of unconventional materials have been used, such as superconductors [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. In superconductors, optical properties are strongly influenced by temperature and magnetic fields.…”

Section: Introductionmentioning

confidence: 99%

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Tunable Photonic Band Gaps in Two-Dimensional Bravais–Moiré Photonic Crystal Composed of High-Tc Superconductors

2023

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In this study, we perform a theoretical study of light propagation properties in two-dimensional square photonic crystals (PCs) following Bravais–Moiré (BM) patterns composed of copper oxide high-temperature superconductors (HTSCs). The BM PCs are made of cylindrical cores formed from the combination of two square Bravais lattices. The Moiré pattern forms due to a commensurable rotation of one of these lattices with respect to the other. The dielectric function of the superconducting material is modeled by the two-fluid Gorter–Casimir theory. We report on the corresponding gap, the mapping as a function of the radius of dielectric cores, as well as the dispersion relations of TM modes for BM PCs and for the waveguide system built of defect lines within such a crystal. The BM PCs were composed of copper oxide HTSCs, which exhibit large tunability in terms of temperature.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tunable Photonic Band Gaps in Two-Dimensional Bravais–Moiré Photonic Crystal Composed of High-Tc Superconductors

2023

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“…In last decades it has been shown that photonic crystals (PhCs) [1,2] which consist of regular arrangement of dielectric materials with periodic refractive indices can be very useful for designing different kinds of optical devices [3][4][5]. The realization of optical filters [6][7][8][9][10], demultiplexers [11][12][13][14][15][16], logic gates [17][18][19][20][21][22], coders [23][24][25][26][27][28][29], adders [30][31][32][33][34][35] and analog to digital converters [36][37][38][39][40] proves the ability of photonic crystals for playing a crucial role in the next generation of all optical networks.…”

Section: Introductionmentioning

confidence: 99%

All optical binary ASK demodulator using photonic crystal based nonlinear ring resonator

Narimanzadeh¹,

Andalib²

2020

Optica Applicata

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In this paper we will propose and design an all optical amplitude shift keying demodulator using a photonic crystal based nonlinear ring resonator. The proposed structure will be designed such that it can generate digital 0 and 1 based on the amplitude of the input signal. The working mechanism is based on controlling the optical behavior of the resonant ring using optical intensity. The proposed structure was simulated using plane wave expansion and finite difference time domain methods. The simulation results show that the rise and fall times for the proposed structure are 0.5 and 0.1 ps, respectively.

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“…The photonic band structure (PBS) and the band gaps in the PCs depend on the difference between the refractive index of the components of the PC, their geometry disposition, and the filling fraction. The different studies on these structures vary from multiple slabs of different materials for 1D systems up to 3D structures [1][2][3][4][5][6][7][8], including fractal disposition of a dielectric material in air in a limited region of the space [9,10]. Also, some studies are related to defects which modify the translation symmetry of PCs which allows the existence of high localized modes used in the construction of wave guides [11,12].…”

Section: Introductionmentioning

confidence: 99%

High plasmon concentration on the surfaces of rectangular metallic rods embedded in air in a 2D photonic crystal

Calvo-Velasco

Porras‐Montenegro

2016

Appl. Phys. A

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Using the revised plane wave method, we calculated the photonic band structure (PBS) considering TE polarization of a square 2D photonic crystal made of rectangular metallic rods embedded in air. In case of square rods and comparing different plasma frequencies, we found a characteristic band distribution related with the existence of localized plasmons on the rod surfaces, and also we found that this type of rod shape contributes to a high concentration of the electromagnetic field close to the rod corners. Considering rectangular rods and varying one of the sides of the rods, we found a PBS that presents a reorganization of the bands in comparing with the low dispersion present in the square rod case, related with a high localization of the radiation on the rod surfaces.

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Photonic band gaps of a two-dimensional square lattice composed by superconducting hollow rods

Cited by 22 publications

References 32 publications

Tunable Photonic Band Gaps in Two-Dimensional Bravais–Moiré Photonic Crystal Composed of High-Tc Superconductors

Tunable Photonic Band Gaps in Two-Dimensional Bravais–Moiré Photonic Crystal Composed of High-Tc Superconductors

All optical binary ASK demodulator using photonic crystal based nonlinear ring resonator

High plasmon concentration on the surfaces of rectangular metallic rods embedded in air in a 2D photonic crystal

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