Asymmetric transmission based on magnetic resonance coupling in 3D-printed metamaterials

Wang, Shengxiang; Wei, Guochao; Wang, Xiaochuan; Qin, Zhengpeng; Li, Yuan; Lei, Wen; Jiang, Zhi Hao; Kang, Lei; Werner, Douglas H.

doi:10.1063/1.5045248

Cited by 8 publications

(6 citation statements)

References 35 publications

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“…Regarding true 3D chiral metamaterials, the particles forming such structures are quite complicate objects (a true 3D chiral object is impossible to superimpose onto its mirror image even if it is lifted from its plane), so their fabrication poses a significant challenge. Fortunately, modern innovative technologies give amazing opportunities for production of true 3D chiral metamaterials, 26,27 and complex metamaterial systems with compensated chirality. 28 In particular, 3D-printing techniques allow producing structures with a complex spatial topology implementing meta-devices with a new functionality.…”

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confidence: 99%

3D-printed chiral metasurface as a dichroic dual-band polarization converter

Wu¹,

Xu²,

Zinenko³

et al. 2019

Opt. Lett.

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We propose a novel design of a true 3D chiral metasurface behaving as a spatial polarization converter with asymmetric transmission. The metasurface is made of a lattice of metallic sesquialteral (one and a half pitch) helical particles. Each particle contains six rectangular bars arranged in a series one above the another creating a spiral. The proposed metasurface exhibits a dual-band asymmetric transmission accompanied by the effect of a complete polarization conversion in the response on the particular distributions of currents induced in the particle's bars by an incident wave. Regarding circularly polarized waves the metasurface demonstrates a strong circular dichroism. A prototype of the metasurface is manufactured for the microwave experiment by using 3D-printing technique utilizing Cobalt-Chromium alloy, which exhibits good performances against thermal fatigue and corrosion at high temperatures. Our work paves the way to find an industrial solution on fabricating communication components with efficient polarization conversion for extreme environments.

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confidence: 99%

3D-printed chiral metasurface as a dichroic dual-band polarization converter

Wu¹,

Xu²,

Zinenko³

et al. 2019

Opt. Lett.

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“…It is important to note that due to its unique structure, the optimal design in our study does not satisfy the transmission symmetry seen in the previously reported AT metamaterial based on twisted meta‐atoms, that is, t xx ≠ t yy , which can be clearly seen from the corresponding simulated transmittance spectra. [ 8,11,40 ] In other words, when the structure interacts with CP waves, AT is also expected. A signature of the twisted‐structure‐based AT metadevices is the relation between the AT (Δ) and the polarization angle, ϕ, that is, Δ x = (| t xy | 2 − | t yx | 2 ) cos 2ϕ.…”

Section: Resultsmentioning

confidence: 99%

Broadband Asymmetric Transmission of Linearly Polarized Mid‐Infrared Light Based on Quasi‐3D Metamaterials

Whiting

Goldflam

Kang

et al. 2022

Adv Funct Materials

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Metamaterials consisting of subwavelength resonators offer an exciting opportunity for realizing asymmetric transmission (AT) of linearly polarized light. However, to date, only moderate/narrow-band AT responses have been obtained in metadevices based on stacked planar nanostructures. Here, leveraging a combination of a genetic algorithm (GA) based optimization method and a membrane projection lithography (MPL) fabrication approach, a quasi-3D metamaterial for broadband AT of linearly polarized mid-infrared light is demonstrated. Facilitated by the customized GA, an efficient exploration of 3D plasmonic meta-atoms with broken mirror symmetry in the light propagation direction allows the satisfaction of the rigorous conditions for AT of linearly polarized waves over a broad wavelength range. Confirmed by surface current analysis, the observed AT behavior is attributed to the resonant coupling between the plasmonic nanostructures located on the two orthogonal walls of the MPL cavities. Incorporating an advanced inversedesign method and a state-of-art fabrication technique, the methodology used in the present study provides a promising route for exploiting 3D metamaterials with sophisticated functionalities via effectively exploring the high-dimensional parametric space offered by true 3D meta-atoms.

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“…To realize outstanding and tunable AT ef-fects in linearly and circularly polarized plane waves, several studies have been conducted, such as changing the shapes of symmetry-broken chiral metastructures, [21,22] increasing the layers of the proposed nanobars, [23,24] and tilting the rectangular nanoholes. [25] With regard to circularly polarized plane waves, high-efficiency broadband and dualband AT effects have been studied and realized from microwave to optical regimes, [20,[26][27][28] and tunable AT effects have also been realized by integrating the graphene layers with metamaterials. [29][30][31] With regard to linearly polarized plane waves, several studies have focused on enhancing the efficiency and broadening the band of the AT effect.…”

Section: Introductionmentioning

confidence: 99%

Multi-band asymmetric transmissions based on bi-layer windmill-shaped metamaterial*

Wang¹,

Li²,

Zhang³

et al. 2021

Chinese Phys. B

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This study proposes a bi-layer windmill-shaped metamaterial that consists of resonators, with similar shapes, on both sides of a dielectric substrate. In this study, the second layer is rotated clockwise around the substrate normal at 90° and thereafter flipped in the first layer. Due to the introduction of a windmill-like shape, the resonant structures result in new resonant modes and thus can achieve multi-band high-efficiency cross-polarization conversions and asymmetric transmissions (ATs) for a linearly polarized incident plane wave with a maximum asymmetric parameter of 0.72. Depending on the geometric parameters of our windmill-shaped structures, the AT effect scan be flexibly modulated in a broad multi-band from 160 THz to 400 THz, which has not been reported in previous studies. These outstanding AT effects provide potential applications in optical diodes, polarization control switches, and other nano-devices.

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Asymmetric transmission based on magnetic resonance coupling in 3D-printed metamaterials

Cited by 8 publications

References 35 publications

3D-printed chiral metasurface as a dichroic dual-band polarization converter

3D-printed chiral metasurface as a dichroic dual-band polarization converter

Broadband Asymmetric Transmission of Linearly Polarized Mid‐Infrared Light Based on Quasi‐3D Metamaterials

Multi-band asymmetric transmissions based on bi-layer windmill-shaped metamaterial*

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