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This paper analyzes thoroughly the dispersion and filtering features of periodic holey waveguides in the millimeter-wave frequency range. Two structures are mainly studied depending on the glide and mirror symmetries of the holes. A…

Glide symmetry offers new degrees of freedom to engineer the properties of periodic structures, and thus it has been exploited in various electromagnetic structures. However, so far there has been little exploration on the impact that glide…

应用物理 · 物理学 2021-02-10 Nikolina Janković , Andrea Alù

Metamaterials with tunable optical properties provide a versatile platform for controlling electromagnetic interactions at the nanoscale. This study explores the anisotropic thermal behavior of metamaterials composed of planar plates…

A phoxonic crystal waveguide with the glide symmetry is designed, in which both electromagnetic and elastic waves can propagate along the glide plane at the same time. Due to the band-sticking effect, super-cell bands of the waveguide…

光学 · 物理学 2023-10-27 Linlin Lei , Lingjuan He , Qinghua Liao , Wenxing Liu , Tianbao Yu

This paper investigates the dispersion characteristics of a highly anisotropic metamaterial comprised of metal square patches arranged in a glide symmetry pattern and submerged in vacuum. Theoretical formulas are proposed to describe the…

经典物理 · 物理学 2025-08-11 Jim A. Enriquez , Eugene Koreshin , Juan P. Del Risco , Pavel A. Belov , Juan D. Baena

In this paper, a modified Maxwell's fish-eye lens is proposed in order to achieve super-resolution imaging. This lens possesses elevated refractive index profile compared with the traditional Maxwell's fish-eye lens. The refractive index…

经典物理 · 物理学 2024-02-08 Liuxian Zhao , Chunlin Li , Xuxu Zhuang , Hao Guo , Yongquan Liu

The Maxwell's fisheye (MFE) lens, due to its focusing properties, is an interesting candidate for implementing the crossing of multiple waveguides. The MFE lens is implemented by two different structures: concentric cylindrical multilayer…

光学 · 物理学 2018-12-04 M. M. Gilarlue , J. Nourinia , Ch. Ghobadi , S. Hadi Badri , H. Rasooli Saghai

The ability to control the asymmetric propagation of light in nanophotonic waveguides is of fundamental importance for optical communications and on-chip signal processing. However, in most studies so far, the design of such structures has…

光学 · 物理学 2017-03-29 Heran Zhang , Fengchun Zhang , Yao Liang , Xu-Guang Huang , Baohua Jia

Parity-Time (PT) symmetric wave devices, which exploit balanced interactions between material gain and loss, exhibit extraordinary properties, including lasing and flux-conserving scattering processes. In a seemingly different research…

光学 · 物理学 2018-01-31 Theodoros T. Koutserimpas , Andrea Alu , Romain Fleury

Shielding mechanisms' influence on the ratio of perpendicular to parallel scale lengths of multidimensional plasma electron hole equilibria are analyzed theoretically and computationally. It is shown that the ``gyrokinetic'' model, invoking…

等离子体物理 · 物理学 2021-09-29 I H Hutchinson

In this article, we substantiate the appositeness of the \emph{mode-matching technique} to study the scattering response of bridging elastic plates connecting two flexible duct regions of different heights. We present two different solution…

经典物理 · 物理学 2022-12-21 Muhammad Afzal , Hazrat Bilal , Naveed Ahmed , Abdul Wahab

This article aims to propose a novel analytical model for anisotropic multi-layer elliptical structures incorporating graphene layers. The multi-layer structure is formed of various magnetic materials. An external magnetic bias has been…

光学 · 物理学 2021-03-10 Mohammad Bagher Heydari , Mohammad Hashem Vadjed Samiei

We demonstrate new axisymmetric inverse-design techniques that can solve problems radically different from traditional lenses, including \emph{reconfigurable} lenses (that shift a multi-frequency focal spot in response to refractive-index…

We study Floquet topological phases in periodically driven systems that are protected by "time glide symmetry", a combination of reflection and half time period translation. Time glide symmetry is an analog of glide symmetry with partial…

强关联电子 · 物理学 2017-05-30 Takahiro Morimoto , Hoi Chun Po , Ashvin Vishwanath

Loss compensation via inserting gain is of fundamental importance in different branches of photonics, nanoplasmonics, and metamaterial science. This effect has found an impressive implementation in the parity-time symmetric (PT-symmetric)…

An efficient electro-optical modulation has been demonstrated here by using an edge plasmon mode specific for the hybrid plasmonic waveguide. Our approach addresses a major obstacle of the integrated microwave photonics caused by the…

We propose a novel analytical model for anisotropic multi-layer cylindrical structures containing graphene layers. The general structure is formed by an aperiodic repetition of a three-layer sub-structure, where a graphene layer, with an…

光学 · 物理学 2021-03-17 Mohammad Bagher Heydari , Mohammad Hashem Vadjed Samiei

In this paper, the aperture field estimation technique and generalized adiabatic Floquet-wave expansion method is developed for two-dimensional temporally modulated anisotropic holograms. The determinant equations for propagation…

应用物理 · 物理学 2022-06-03 Amrollah Amini , Homayoon Oraizi , Mostafa Movahediqomi , Mohammad Moein Moeini

Mode-division multiplexing (MDM) is an emerging large-capacity data communication technology utilizing orthogonal guiding modes as independent data streams. One of the challenges of multimode waveguide routing in MDM systems is decreasing…

光学 · 物理学 2019-06-12 S. Hadi Badri , H. Rasooli Saghai , Hadi Soofi

We derive formulas for Whispering Gallery Mode resonances and bending losses in infinite cylindrical dielectric shells and sets of concentric cylindrical shells. The formulas also apply to spherical shells and to sections of bent…

光学 · 物理学 2016-12-07 Gregory Kozyreff , Nirmalendu Acharyya
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