Graphene-embedded planar and cylindrical Oldenburger–Kolakoski aperiodic photonic crystals

Fernandes, J.A.; Feitosa, F.A.O.; Costa, C.H.O.; Vasconcelos, M.S.; Bezerra, C.G.; Anselmo, D.H.A.L.

doi:10.1016/j.optmat.2024.114832

Cited by 3 publications

(1 citation statement)

References 48 publications

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“…In this paper, we present a new family of aperiodic ZPs arranged according to the rules of the Kolakoski sequence 41 . This self-generating sequence has been applied in several branches of science and engineering, as for example in the context of photonic 42 and magneto-photonic 43 crystals, polymer science 44 , nanophotonic waveguides 45 , and applied mathematics 46 , among others. Here we present the first diffractive lenses based on this formalism and an analytical expression for the transmittance function is derived.…”

Section: Introductionmentioning

confidence: 99%

Bifocal diffractive lenses based on the aperiodic Kolakoski sequence

Garmendía-Martínez,

Muñoz-Pérez,

Furlan

et al. 2024

Sci Rep

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In this work, we present a new family of Zone Plates (ZPs) designed using the self-generating Kolakoski sequence. The focusing and imaging properties of these aperiodic diffractive lenses coined Kolakoski Zone Plates (KZPs) are extensively studied. It is shown that under monochromatic plane-wave illumination, a KZP produces two main foci of the same intensity along the axial axis. Moreover, one of the corresponding focal lengths is double the other, property correlated with the involved aperiodic sequence. This distinctive optical characteristic is experimentally confirmed. We have also obtained the first images provided by these bifocal new diffractive lenses.

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Section: Introductionmentioning

confidence: 99%

Bifocal diffractive lenses based on the aperiodic Kolakoski sequence

Garmendía-Martínez,

Muñoz-Pérez,

Furlan

et al. 2024

Sci Rep

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Extrinsic magnetised plasma kolakoski quasicrystal

Poddar,

Nayak,

Behera

et al. 2024

Optical Materials

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Optical properties of cylindrical topological photonic crystal heterostructures

Roshan Entezar

2024

Phys. Scr.

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This paper uses a modified transfer matrix method to investigate the optical properties of a cylindrical topological photonic crystal heterostructure composed of two cylindrical photonic crystals. Topological photonic crystals are novel structures with topological edge states capable of field confinement and robust propagation. Numerical results showed that when the sum of the phases of the reflection coefficients of the two cylindrical photonic crystals is zero, a topological edge state occurs inside their overlapping band gaps. In the linear regime, the peak frequency of the topological edge states undergoes a redshift as the incidence angle increases. An increase in the incidence angle leads to a decrease (increase) in the Full width at half maximum of the E-polarized (H-polarized) topological edge states. As the incidence angle increases, the frequency separation between the E-polarized and H-polarized topological edge states increases, causing the cylindrical heterostructure to work as a polarizer. The performance of the cylindrical topological photonic crystal heterostructure as a polarizer is evaluated in the linear and nonlinear regimes. We showed that the peak frequency of the topological edge states undergoes a redshift irrespective of their polarization state as the intensity of the input light increases. We found that the structure has a good performance in the nonlinear regime due to the higher displacement in E-polarized topological edge states compared to H-polarized topological edge states. The findings of this paper might be beneficial in the construction of polarization-maintaining optical fiber, which has specific applications in telecommunications, fiber optic sensing, interferometry, and quantum key distribution.

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Graphene-embedded planar and cylindrical Oldenburger–Kolakoski aperiodic photonic crystals

Cited by 3 publications

References 48 publications

Bifocal diffractive lenses based on the aperiodic Kolakoski sequence

Bifocal diffractive lenses based on the aperiodic Kolakoski sequence

Extrinsic magnetised plasma kolakoski quasicrystal

Optical properties of cylindrical topological photonic crystal heterostructures

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