Journal ArticleDOI
Scalar and Tensor Holographic Artificial Impedance Surfaces
TLDR
In this paper, an artificial impedance surface that is implemented as an array of sub-wavelength metallic patches on a grounded dielectric substrate is designed to scatter a known input wave into a desired output wave.Abstract:
We have developed a method for controlling electromagnetic surface wave propagation and radiation from complex metallic shapes. The object is covered with an artificial impedance surface that is implemented as an array of sub-wavelength metallic patches on a grounded dielectric substrate. We pattern the effective impedance over the surface by varying the size of the metallic patches. Using a holographic technique, we design the surface to scatter a known input wave into a desired output wave. Furthermore, by varying the shape of the patches we can create anisotropic surfaces with tensor impedance properties that provide control over polarization. As an example, we demonstrate a tensor impedance surface that produces circularly polarized radiation from a linearly polarized source.read more
Citations
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Journal ArticleDOI
Flat Optics With Designer Metasurfaces
Nanfang Yu,Federico Capasso +1 more
TL;DR: This Review focuses on recent developments on flat, ultrathin optical components dubbed 'metasurfaces' that produce abrupt changes over the scale of the free-space wavelength in the phase, amplitude and/or polarization of a light beam.
Journal ArticleDOI
A review of metasurfaces: physics and applications.
TL;DR: Recent progress in the physics of metasurfaces operating at wavelengths ranging from microwave to visible is reviewed, with opinions of opportunities and challenges in this rapidly developing research field.
Journal ArticleDOI
A review of metasurfaces: physics and applications
TL;DR: Metamaterials are composed of periodic subwavelength metal/dielectric structures that resonantly couple to the electric and/or magnetic components of the incident electromagnetic fields, exhibiting properties that are not found in nature as discussed by the authors.
Journal ArticleDOI
Metasurfaces: From microwaves to visible
Stanislav Glybovski,Sergei A. Tretyakov,Pavel A. Belov,Yuri S. Kivshar,Yuri S. Kivshar,Constantin Simovski,Constantin Simovski +6 more
TL;DR: In this article, the basic physics and applications of planar metamaterials, often called metasurfaces, which are composed of optically thin and densely packed planar arrays of resonant or nearly resonant subwavelength elements, are reviewed.
Journal ArticleDOI
Broadband achromatic dielectric metalenses
TL;DR: This work developed a design methodology and created libraries of meta-units—building blocks of metasurfaces—with complex cross-sectional geometries to provide diverse phase dispersions (phase as a function of wavelength), which is crucial for creating broadband achromatic metalenses.
References
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Journal ArticleDOI
High-impedance electromagnetic surfaces with a forbidden frequency band
TL;DR: In this paper, a new type of metallic structure has been developed that is characterized by having high surface impedance, which is analogous to a corrugated metal surface in which the corrugations have been folded up into lumped-circuit elements and distributed in a two-dimensional lattice.
Journal ArticleDOI
Simple and Accurate Analytical Model of Planar Grids and High-Impedance Surfaces Comprising Metal Strips or Patches
Olli Luukkonen,Constantin Simovski,Gérard Granet,George Goussetis,Dmitri Lioubtchenko,Antti V. Räisänen,Sergei A. Tretyakov +6 more
TL;DR: In this paper, simple analytical formulas are introduced for the grid impedance of electrically dense arrays of square patches and for the surface impedance of high-impedance surfaces based on the dense array of metal strips or square patches over ground planes.
Journal ArticleDOI
Transmission line approach of left-handed (LH) materials and microstrip implementation of an artificial LH transmission line
Christophe Caloz,Tatsuo Itoh +1 more
TL;DR: It is shown that, in this line, left-handedness can be achieved without losses over an unlimited bandwidth, from the cutoff of the resulting high-pass filter to infinity, with excellent agreement with theory.
Book
Optical holography : principles, techniques, and applications
TL;DR: In this paper, a self-contained treatment of the principles, techniques and applications of optical holography, with particular emphasis on recent developments, is presented, along with a detailed description of the most important applications.
Journal ArticleDOI
CRLH metamaterial leaky-wave and resonant antennas
TL;DR: In this paper, the authors present an overview of the most practical leaky-wave and resonant CRLH antennas, which all exhibit functionalities or/and performance superior to prior state of the art.
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