Optimization of multilayered nanotubes for maximal scattering cancellation

Díaz-Aviñó, Carlos; Naserpour, Mahin; Zapata–Rodríguez, Carlos J.

doi:10.1364/oe.24.018184

Cited by 13 publications

(10 citation statements)

References 28 publications

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“…We have further validated our analytical predictions against numerical simulations and experiments. In accordance with our available experimental means, we have chosen the microwave range of the spectrum (8)(9)(10)(11)(12)(13)(14)(15) to demonstrate the manifestation of the invisibility effect. We consider particle arrangements constituted of a lowloss, high-permittivity microwave ceramic, manufactured in the shapes of disks and cubes ( Fig.…”

Section: Far-field Properties Of All-dielectric Metasurfacesmentioning

confidence: 99%

Transparency and perfect absorption of all-dielectric resonant metasurfaces governed by the transverse Kerker effect

Shamkhi

Sayanskiy

Valero

et al. 2019

Phys. Rev. Materials

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Dielectric metasurfaces perform unique photonics effects and serve as the engine of nowadays lightmatter technologies. Here, we suggest theoretically and demonstrate experimentally the realization of a high transparency effect in a novel type of all-dielectric metasurface, where each constituting meta-atom of the lattice presents the so-called transverse Kerker effect. In contrast to Huygens' metasurfaces, both phase and amplitude of the incoming wave remain unperturbed at the resonant frequency and, consequently, our metasurface totally operates in the invisibility regime. We prove experimentally, for the microwave frequency range, that both phase and amplitude of the transmitted wave from the metasurface remain almost unaffected. Finally, we demonstrate both numerically and experimentally and explain theoretically in detail a novel mechanism to achieve perfect absorption of the incident light enabled by the resonant response of the dielectric metasurfaces placed in the vicinity of a conducting substrate. In the subdiffractive limit, we show the aforementioned effects are mainly determined by the optical response of the constituting meta-atoms rather than the collective lattice contributions. With the spectrum scalability, our findings can be incorporated in engineering devices for energy harvesting, nonlinear phenomena and filters applications.

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Section: Far-field Properties Of All-dielectric Metasurfacesmentioning

confidence: 99%

Transparency and perfect absorption of all-dielectric resonant metasurfaces governed by the transverse Kerker effect

Shamkhi

Sayanskiy

Valero

et al. 2019

Phys. Rev. Materials

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show abstract

“…We consider transverse electric (TE) polarization (polarized in the y-direction) whereby the electric field has polarization along y-axis, because the SSc phenomenon is efficient only with incident TE polarization. For analytical calculations of the optical response from the CHMM, we used the Lorentz-Mie method with a transfer matrix approach [17,[20][21][22]. The NSCS, σ, is considered as a figure of merit for scattering of subwavelength structures.…”

Section: Calculationmentioning

confidence: 99%

Superscattering from cylindrical hyperbolic metamaterials in the visible region

Kumar

Kajikawa

2020

Opt. Express

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We report that cylindrical hyperbolic metamaterials (CHMMs) exhibit superscattering (SSc) in the visible region, based on analytical and numerical calculations. It has normalized scattering cross-section (NSCS) twice as large as that from cylinders consisting of homogeneous materials. This large NSCS is due to constructive interference of multipolar resonances. Finitedifference time-domain calculations revealed that the spatial field-distribution at the SSc condition is similar to that of a whispering gallery mode (WGM), suggesting that the WGM-like field distribution is responsible for the large scattering. It is also reported that the SSc can be achieved in CHMM of epsilon near zero materials.

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“…We have: Multilayered cylindrical structure consisting of alternating graphene-dielectric stacks under plane wave illumination. The 2D graphene shells are represented volumetrically for the sake of illustration [31].…”

Section: Multilayered Graphene-based Cylindrical Structuresmentioning

confidence: 99%

Scattering from Multilayered Graphene-Based Cylindrical and Spherical Particles

Raad¹,

Atlasbaf²,

Cuevas³

2020

Nanoplasmonics

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This chapter discusses various approaches for calculating the modified Mie-Lorenz coefficients of the graphene-based multilayered cylindrical and spherical geometries. Initially, the Kubo model of graphene surface conductivity is discussed. Then, according to it, the formulations of scattering from graphene-based conformal particles are extracted. So, we have considered a graphene-wrapped cylinder and obtained its scattering coefficients by considering graphene surface currents on the shell. Later, a layered nanotube with multiple stacked graphene-dielectric interfaces is introduced, and for analyzing the plane wave scattering, graphene surface conductivity is incorporated in the transfer matrix method (TMM). Unlike the previous section, the dielectric model of graphene material is utilized, and the boundary conditions are applied on an arbitrary graphene interface, and a matrix-based formulation is concluded. Then, various examples ranging from super-scattering to super-cloaking are considered. For the scattering analysis of the multilayered spherical geometries, recurrence relations are introduced for the corresponding modified Mie-Lorenz coefficients by applying the boundary conditions at the interface of two adjacent layers. Later, for a sub-wavelength nanoparticle with spherical morphology, the full electrodynamics response is simplified in the electrostatic regime, and an equivalent circuit is proposed. Various practical examples are included to clarify the importance of scattering analysis for graphene-based layered spheres in order to prove their importance for developing novel optoelectronic devices.

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Optimization of multilayered nanotubes for maximal scattering cancellation

Cited by 13 publications

References 28 publications

Transparency and perfect absorption of all-dielectric resonant metasurfaces governed by the transverse Kerker effect

Transparency and perfect absorption of all-dielectric resonant metasurfaces governed by the transverse Kerker effect

Superscattering from cylindrical hyperbolic metamaterials in the visible region

Scattering from Multilayered Graphene-Based Cylindrical and Spherical Particles

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