BACKGROUND Future high-performance portable and wearable optical devices and
systems with small footprints and low weights will require components with small form …

The terahertz (THz) band has very attractive characteristics for sensing and biosensing
applications, due to some interesting features such as being a non‐ionizing radiation, very …

We review the basic physics and applications of a special class of planar metamaterials,
often called metasurfaces, which are composed of optically thin and densely packed planar …

The ideal material for nanophotonic applications will have a large refractive index at optical
frequencies, respond to both the electric and magnetic fields of light, support large optical …

Metasurfaces, two-dimensional equivalents of metamaterials, are engineered surfaces
consisting of deep subwavelength features that have full control of the electromagnetic …

In this Letter, we demonstrate highly efficient, polarization-insensitive planar lenses
(metalenses) at red, green, and blue wavelengths (λ= 660, 532, and 405 nm). Metalenses …

Metamaterials have great capabilities and flexibilities in controlling electromagnetic (EM)
waves because their subwavelength meta-atoms can be designed and tailored in desired …

This paper is a critical review of metasurfaces, which are planar metamaterials.
Metamaterials offer bespoke electromagnetic applications and novel properties which are …

Metasurface-based nanoprinting (meta-nanoprinting) has fully demonstrated its advantages
in ultrahigh-density grayscale/color image recording and display. A typical meta …

Despite the extraordinary degree of interest in optical metamaterials in recent years, the
hoped-for devices and applications have, in large part, yet to emerge. It is becoming clear …