Honorary issue for Federico Capasso on "Metamaterials & Metasurfaces" (2018)

Metasurfaces – from science to applications

Metasurfaces – from science to applications

This special issue includes contributions of leading experts in the field of metasurfaces. This collection of articles is dedicated to a pioneering scientist – Dr. Federico Capasso – one of the leading experts in this field. We open the issue …

The future and promise of flat optics: a personal perspective

The future and promise of flat optics: a personal perspective

Metasurfaces enable the redesign of optical components into thin, planar and multifunctional elements, promising a major reduction in footprint and system complexity as well as the introduction of new optical functions. The planarity of flat optics …

Material platforms for optical metasurfaces

Material platforms for optical metasurfaces

Optical metasurfaces are judicously engineered electromagnetic interfaces that can control and manipulate many of light’s quintessential properties, such as amplitude, phase, and polarization. These artificial surfaces are composed of …

Metasurfaces and their applications

Metasurfaces and their applications

Metasurfaces are a topic of significant research and are used in various applications due to their unique ability to manipulate electromagnetic waves in microwave and optical frequencies. These artificial sheet materials, which are usually composed …

Controlling the phase of optical nonlinearity with plasmonic metasurfaces

Controlling the phase of optical nonlinearity with plasmonic metasurfaces

Metasurfaces are ultrathin structured surfaces that are capable of manipulating the propagation of light in an arbitrary manner. It has been endowed with various functionalities ranging from imaging to holography. In contrast to linear optical …

Molding light with metasurfaces: from far-field to near-field interactions

Molding light with metasurfaces: from far-field to near-field interactions

The field of metasurfaces is revolutionizing the way we control and manipulate light and electromagnetic fields based on engineered ultrathin structures. In this review article, we discuss the theory, modeling, and applications of metasurfaces, with …

A review of dielectric optical metasurfaces for wavefront control

A review of dielectric optical metasurfaces for wavefront control

During the past few years, metasurfaces have been used to demonstrate optical elements and systems with capabilities that surpass those of conventional diffractive optics. Here, we review some of these recent developments, with a focus on dielectric …

Bianisotropic metasurfaces: physics and applications

Bianisotropic metasurfaces: physics and applications

Metasurfaces as optically thin composite layers can be modeled as electric and magnetic surface current sheets flowing in the layer volume in the metasurface plane. In the most general linear metasurface, the electric surface current can be induced …

Design, concepts, and applications of electromagnetic metasurfaces

Design, concepts, and applications of electromagnetic metasurfaces

The paper overviews our recent work on the synthesis of metasurfaces and related concepts and applications. The synthesis is based on generalized sheet transition conditions (GSTCs) with a bianisotropic surface susceptibility tensor model of the …

Reconfigurable epsilon-near-zero metasurfaces via photonic doping

Reconfigurable epsilon-near-zero metasurfaces via photonic doping

The next generation of flat optic devices aspires to a dynamic control of the wavefront characteristics. Here, we theoretically investigated the reconfigurable capabilities of an epsilon-near-zero (ENZ) metasurface augmented with resonant dielectric …

A review of gap-surface plasmon metasurfaces: fundamentals and applications

A review of gap-surface plasmon metasurfaces: fundamentals and applications

Plasmonic metasurfaces, which can be considered as the two-dimensional analog of metal-based metamaterials, have attracted progressively increasing attention in recent years because of the ease of fabrication and unprecedented control over the …

Dimerized high contrast gratings

Dimerized high contrast gratings

Metasurfaces and planar photonic crystals are two classes of subwavelength diffractive optical devices offering novel functionalities. The former employ independently operating subwavelength “meta-units” as their building blocks, while the …

Metasurface holography: from fundamentals to applications

Metasurface holography: from fundamentals to applications

Holography has emerged as a vital approach to fully engineer the wavefronts of light since its invention dating back to the last century. However, the typically large pixel size, small field of view and limited space-bandwidth impose limitations in …

Wavefront manipulation by acoustic metasurfaces: from physics and applications

Wavefront manipulation by acoustic metasurfaces: from physics and applications

Molding the wavefront of acoustic waves into the desired shape is of paramount significance in acoustics, which however are usually constrained by the acoustical response of naturally available materials. The emergence of acoustic metamaterials …

Huygens’ metasurfaces from microwaves to optics: a review

Huygens’ metasurfaces from microwaves to optics: a review

In this article, the basic principles and the main applications of Huygens’ metasurfaces (HMSs) are reviewed from microwaves to optics. In general, HMSs comprise a thin layer of orthogonal electric and magnetic dipoles, which form an array of …

Nonconventional metasurfaces: from non-Hermitian coupling, quantum interactions, to skin cloak

Nonconventional metasurfaces: from non-Hermitian coupling, quantum interactions, to skin cloak

Metasurfaces are optically thin layers of subwavelength resonators that locally tailor the electromagnetic response at the nanoscale. Our metasurface research aims at developing novel designs and applications of metasurfaces that go beyond the …