Metamaterial polarization converter analysis: limits of performance

Markovich, Dmitry; Andryieuski, Andrei; Zalkovskij, Maksim; Malureanu, Radu; Lavrinenko, Andrei V.

doi:10.1007/s00340-013-5383-8

Cited by 74 publications

(36 citation statements)

References 34 publications

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“…Note that ε 1=2 L=λ≈0:095 and ε 1=2 L=λ≈0:28, respectively. Thus, classical Fabry-Perot resonances in the dielectric layer are not expected to contribute to the resulting transmission mechanism that distinguishes our structures from those studied by Markovich et al [31]. For the mesh-containing structure with ε = 35.4, we obtain four maxima, at which either jT The resonance frequencies corresponding to the first maxima of jT f xy j in Figure 3(c, e, g, i) are approximated by…”

Section: Metamaterials -Devices and Applicationsmentioning

confidence: 81%

“…Diodelike asymmetric transmission with reflections vanishing for one of two opposite incidence directions has been theoretically predicted in the zero-loss approximation for both diffraction [30] and polarization conversion [1,23] inspired mechanisms. The principal possibility of the perfect polarization conversion in a generalized doublelayer structure has been demonstrated [31].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Dielectric Substrate on Polarization Conversion Using Coupled Metasurfaces With and Without Tunneling

Serebryannikov¹,

Mutlu²,

Özbay³

2017

Metamaterials - Devices and Applications

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Dielectric substrates are technologically necessary components of various microwave and optical structures and devices, and may strongly affect their performance. For metasurfaces composed of subwavelength resonators, placing dielectric components in the proximity of resonators can lead to strong modification of subwavelength resonances and related transmission regimes. We focus on the effects exerted by material and geometrical parameters of such a dielectric substrate on linear-to-linear polarization conversion that appears in quasiplanar structures containing two coupled metasurfaces and enabling chirality. It is shown that spectral locations of the polarization conversion resonances and transmission efficiency at these resonances are strongly sensitive to the substrate parameters, whereas the ability of polarization conversion and related asymmetry of transmission can be preserved in wide ranges of parameter variation. The effects of a substrate are considered in detail for the mechanisms with and without tunneling, indicating a route to compact designs of quasiplanar structures for singleand multiband polarization conversion.

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Section: Metamaterials -Devices and Applicationsmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

Effects of Dielectric Substrate on Polarization Conversion Using Coupled Metasurfaces With and Without Tunneling

Serebryannikov¹,

Mutlu²,

Özbay³

2017

Metamaterials - Devices and Applications

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“…The reflectance difference can be remarkably enhanced further by employment of a resonator layer between the multilayer and the substrate 28 . The results of such implementation are illustrated in Fig.2, where the effect of parameters sweeping (the thickness of the additional layer L and substrate refractive index n sub ) is presented.…”

Section: Modelingmentioning

confidence: 99%

Effective medium approximation for deeply subwavelength all-dielectric multilayers: when does it break down?

Lavrinenko¹,

Zhukovsky²,

Andryieuski³

et al. 2016

SPIE Proceedings

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We report on theoretical analysis and experimental validation of the applicability of the effective medium approximation to deeply subwavelength (period ⩽λ/30) all-dielectric multilayer structures. Following the theoretical prediction of the anomalous breakdown of the effective medium approximation [H. H. Sheinfux et al., Phys. Rev. Lett. 113, 243901 (2014)] we thoroughly elaborate on regimes, when an actual multilayer stack exhibits significantly different properties compared to its homogenized model. Our findings are fully confirmed in the first direct experimental demonstration of the breakdown effect. Multilayer stacks are composed of alternating alumina and titania layers fabricated using atomic layer deposition. For light incident on such multilayers at angles near the total internal reflection, we observe pronounced differences in the reflectance spectra (up to 0.5) for structures with different layers ordering and different but still deeply subwavelength thicknesses. Such big reflectance difference values resulted from the special geometrical configuration with an additional resonator layer underneath the multilayers employed for the enhancement of the effect. Our results are important for the development of new homogenization approaches for metamaterials, high-precision multilayer ellipsometry methods and in a broad range of sensing applications.

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“…Here, we present an alternative design of a broadband cross polarization converter based on a specifically designed optical anisotropic meta-surface [11][12][13][14][15][16][17][18][19][20][21]. The high conversion efficiency between two independent linear polarizations is realizable at~1.5 μm when the reflection phase difference along x and y axes is~180°.…”

Section: Introductionmentioning

confidence: 97%

High-Efficiency Broadband Cross Polarization Converter for Near-Infrared Light Based on Anisotropic Plasmonic Meta-surfaces

2015

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We show that the linear polarization state of electromagnetic waves at near-infrared frequencies can be efficiently rotated to its orthogonal direction by an alternative design of anisotropic plasmonic meta-surfaces. Numerical results demonstrate that the reflection coefficient converting to cross polarization after reflection can be as high as~96 % with a half-powered bandwidth~40 % at the wavelength~1.5 μm.The designed system is much thinner than conventional geometric-optics devices and does suffer little energy loss. The energy loss is~10 % at the designed wavelength due to the Ohmic loss within the metals.

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Metamaterial polarization converter analysis: limits of performance

Cited by 74 publications

References 34 publications

Effects of Dielectric Substrate on Polarization Conversion Using Coupled Metasurfaces With and Without Tunneling

Effects of Dielectric Substrate on Polarization Conversion Using Coupled Metasurfaces With and Without Tunneling

Effective medium approximation for deeply subwavelength all-dielectric multilayers: when does it break down?

High-Efficiency Broadband Cross Polarization Converter for Near-Infrared Light Based on Anisotropic Plasmonic Meta-surfaces

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