Dual-band asymmetric transmission of linearly polarized wave using Π-shaped metamaterial

Huang, Xiaojun; Yang, Dong; Yu, Shengqing; Liang, Guo; Guo, Linyan; Yang, Helin

doi:10.1007/s00340-014-5876-0

Cited by 21 publications

(9 citation statements)

References 35 publications

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“…Later works have addressed these issues and produced designs with wide-band and multiband AT using bi-layered and multi-layered structures. [30][31][32][33][34][35][36][37][38] However, these designs demonstrate wideband response only for normal incidence which significantly limited their use in practical applications. In 2018, Stephen et al 39 studied a bi-layered chiral metamaterial (CMM) that exhibits a broad-band (1.15 GHz bandwidth) AT for linearly polarized wave in microwave regime.…”

Section: Introductionmentioning

confidence: 99%

“…Initial designs were single resonant, low‐band structures that suffered from poor transmission efficiencies. Later works have addressed these issues and produced designs with wide‐band and multiband AT using bi‐layered and multi‐layered structures 30‐38 . However, these designs demonstrate wideband response only for normal incidence which significantly limited their use in practical applications.…”

Section: Introductionmentioning

confidence: 99%

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Angularly stable and broadband chiral metamaterial based design for asymmetric transmission of linearly polarized waves

Ullah

Rashid

2020

Micro & Optical Tech Letters

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In this paper, a novel bi-layered chiral metamaterial (CMM) based design is proposed, which exhibits broadband operation of asymmetric transmission (AT) of linearly polarized waves. Simulation results of the proposed design shows wide-band AT response (transmission efficiency greater than 90%) in the microwave region from 8.48 to 10.16 GHz (1.68 GHz bandwidth) with a simultaneous cross-polarization conversion (CPC) response (conversion efficiency greater than 92%). The transmission and reflection response clearly indicate the AT and CPC results of our design. Both behaviors are explained in terms of cross-coupling between induced electric and magnetic dipoles due to surface currents. Finally, it is shown that AT response of the proposed design is stable with respect to variations in incident angle of the incoming wave up to 45. Due to its high efficiency, lowprofile, broadband response, and angular stability this design has numerous applications in modern telecommunication systems.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Angularly stable and broadband chiral metamaterial based design for asymmetric transmission of linearly polarized waves

Ullah

Rashid

2020

Micro & Optical Tech Letters

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“…[8,9] Three dimensional metallic nanostructures, which are attributed to a large light-matter interaction, generate a strong AT effect considering the excitation of electric and magnetic resonant modes. [13][14][15] For easy fabrication, considerable efforts have been dedicated to investigating the mechanism of AT effect and tuning AT signal in the planar metamaterials. [13][14][15] For easy fabrication, considerable efforts have been dedicated to investigating the mechanism of AT effect and tuning AT signal in the planar metamaterials.…”

Section: Introductionmentioning

confidence: 99%

Asymmetric Transmission in the Planar Chiral Nanostructure Induced by Electric and Magnetic Resonance at the Same Wavelength

et al. 2019

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Asymmetric transmission (AT) reflects the conversion efficiency of a chiral nanostructure for circularly polarized light and is widely used in polarization and optoelectronic devices. In this study, a new mechanism is proposed to generate AT when a planar chiral nanostructure is illuminated under left-handed circularly polarized (LCP) and right-handed circularly polarized (RCP) light illumination. The new mechanism can be achieved by breaking the symmetry of the designed planar chiral nanostructure which give rise to a new transmittance peak and dip at a particular wavelength under RCP and LCP light illumination, respectively. The proposed new mechanism is also capable of actively tuning the generated resonant modes. Besides this, when graphene strips are added to the designed planar chiral nanostructure, similar results are obtained as that from breaking the symmetry of the planar chiral nanostructure. In this case, the generated AT could also be actively tuned by varying the Fermi energies of graphene strips. Conflict of InterestThe authors declare no conflict of interest.

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“…Based on various chiral MMs, most transmissive polarizers, which can realize linear [15][16][17][18][19][20][21][22][23] or circular [24][25][26][27][28][29][30][31][32][33][34][35] polarization conversion, have been proposed. In addition, because of the asymmetry of these chiral MM structures, in most cases, the asymmetric transmission effect, which means that the transmission coefficients are different at the incidences with different polarizations (x/y-or RHCP/LHCP-polarizations), can also be observed at the same time [17][18][19][20][21][22][23][25][26][27][28][29][30][31][32][33][34][35]. The asymmetric transmission effect can be used for polarization selection; however, it should be avoided sometimes to ensure that the transmission coefficients are the same at the incidences with different polarizations.…”

Section: Introductionmentioning

confidence: 99%

A Wide-Angle and Wide-Band Circular Polarizer Using a Bi-Layer Metasurface

Bao-Qin¹,

Guo²,

Wang³

et al. 2018

PIER

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In this work, a wide-angle and wide-band transmission-type circular polarizer based on a bi-layer anisotropic metasurface is proposed, in which the unit cell consists of two layers of identical patterned metal films deposited on the two sides of a homogeneous dielectric layer, and the geometric pattern of the metal film is a square aperture surrounding a concentric square-corner-truncated square patch. The simulated results show that the polarizer can realize a linear-to-circular polarization conversion at both x-and y-polarized incidences in the frequency range from 7.63 to 11.13 GHz with a relative bandwidth of 37.3%, and it can maintain a stable polarization conversion performance under large-range incidence angles. Moreover, it has no asymmetric transmission effect, and the transmission coefficients at x-and y-polarized incidences are completely equal. Finally, one experiment is carried out, and the simulated and measured results are almost in agreement with each other.

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Dual-band asymmetric transmission of linearly polarized wave using Π-shaped metamaterial

Cited by 21 publications

References 35 publications

Angularly stable and broadband chiral metamaterial based design for asymmetric transmission of linearly polarized waves

Angularly stable and broadband chiral metamaterial based design for asymmetric transmission of linearly polarized waves

Asymmetric Transmission in the Planar Chiral Nanostructure Induced by Electric and Magnetic Resonance at the Same Wavelength

A Wide-Angle and Wide-Band Circular Polarizer Using a Bi-Layer Metasurface

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