Manipulating light polarization with ultrathin plasmonic metasurfaces

Zhao, Yang; Alù, Andrea

doi:10.1103/physrevb.84.205428

Cited by 669 publications

(401 citation statements)

References 29 publications

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“…The loop structure requires vias in realization, which are too complicated to realize at very high frequencies, such as optical frequencies. In these frequency spectrum, simple and planar structures are more compliable with present fabrication technologies [25,34,35]. Hence, the proposed synthesis method in this paper is more compatible with practical fabrication capabilities.…”

Section: Application In High Efficiency Polarization Conversionmentioning

confidence: 76%

“…High energy transmission is desired to improve signal noise ratio in practice, which requires both surface magnetic and electric impedance in synthesis. With only single layer electric impedance surface, as in [25,24,35], the incident energy will be partly reflected, leading to lower transmission efficiency. The effective surface impedance of this polarization converter is calculated to be Y e = j0.0022 0 0 −j0.0022…”

Section: Application In High Efficiency Polarization Conversionmentioning

confidence: 99%

“…Both of them are important and necessary to achieve full control on EM wave propagation [23,24]. The electric surface impedance is usually implemented by ultra-thin metallic patterns [4,14,17,18,[25][26][27], whereas the magnetic surface impedance is usually implemented by the metallic loops [7,23,24,28].…”

Section: Introductionmentioning

confidence: 99%

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Surface Impedance Synthesis Using Parallel Planar Electric Metasurfaces

Zhu¹

2017

PIER

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Abstract-Metasurfaces, due to its designable surface electric and magnetic impedances, have largely enhanced electromagnetic wave manipulation techniques. The conventional approach to realize the surface magnetic impedance requires non-planar structures, such as metallic loops, which is not easy to fabricate, especially at optical frequencies. In this work, we theoretically and rigorously prove that effective surface magnetic and electric impedances can be obtained using parallel electric metasurfaces. A synthesis method is presented which allows independent designs of surface electric and magnetic impedances. Finally, a polarization converter with high energy efficiency is designed using the proposed impedance synthesis method for verification. The proposed synthesis method is favorable for reducing fabrication complexities.

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Section: Application In High Efficiency Polarization Conversionmentioning

confidence: 76%

Section: Application In High Efficiency Polarization Conversionmentioning

confidence: 99%

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Surface Impedance Synthesis Using Parallel Planar Electric Metasurfaces

Zhu¹

2017

PIER

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“…Polarization converter is a kind of polarization control device which can effectively change the polarization state of incident wave. Conventional methods to manipulate polarizations include using refractive index gradient materials [7], anisotropic and chiral metamaterials [8][9][10][11][12][13][14][15]. However, the polarization converters based on these materials generally have narrow operating bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Broadband reflective multi-polarization converter based on single-layer double-L-shaped metasurface

Mao

Yang

et al. 2017

Appl. Phys. A

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In this paper, a broadband reflective multi-polarization converter based on single-layer double-L-shaped metasurface is proposed. The proposed metasurface can effectively convert linear-polarized (TE/TM) incident wave into the reflected wave with three different polarizations within the frequency bands of 5.5-22.75 GHz. Based on the electric and magnetic resonant features of the double-L-shaped structure, the proposed metasurface can convert linearly polarized waves into crosspolarized waves at three resonant frequency bands. Furthermore, the incident linearly polarized waves can be effectively converted into left/right handed circular-polarized (LHCP and RHCP) waves at other four non-resonance frequency bands. Thus, the proposed metasurface can be regarded as a seven-band multi-polarization converter. The prototype of the proposed polarization converter is analyzed and measured. Both simulated and measured results show the 3-dB axis ratio bandwidth of circular polarization bands and the high polarization conversion efficiency of cross-polarization bands when the incident wave changes from 0° to 30° at both TE and TM modes.

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“…New concepts are constantly explored, involving surface plasmons [1], plasmonic metasurfaces [2], or novel birefringent designs [3], and offer solutions to polarization control in a broad range of frequencies from visible up to terahertz. Among them, recent developments in three-dimensional sub-micron-resolution two-photon laser photolithography (direct laser writing) techniques [4,5], combined with electrochemical metal deposition on a positive resist molds led to spectacular demonstration of high-aspect-ratio helical spring-like all metal structures [6].…”

Section: Introductionmentioning

confidence: 99%

Light polarization management via reflection from arrays of sub-wavelength metallic twisted bands

et al. 2017

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With constant progress of nano-and microfabrication technologies, photolithography in particular, a number of sub-wavelength metallic structures have been demonstrated that can be used to manipulate light polarization. Numerical simulations of light propagation hint that helical twisted bands can have interesting polarization properties. We use three-dimensional two-photon photolithography (direct laser writing) to fabricate a few-micrometer-thick arrays of twisted bands and coat them uniformly with metal. We demonstrate that circular polarization can be generated from linear polarization upon reflection from such structures over a broad range of frequencies in the mid infrared.

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Manipulating light polarization with ultrathin plasmonic metasurfaces

Cited by 669 publications

References 29 publications

Surface Impedance Synthesis Using Parallel Planar Electric Metasurfaces

Surface Impedance Synthesis Using Parallel Planar Electric Metasurfaces

Broadband reflective multi-polarization converter based on single-layer double-L-shaped metasurface

Light polarization management via reflection from arrays of sub-wavelength metallic twisted bands

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