The prospect of creating metamaterials with optical properties greatly exceeding the
parameter space accessible with natural materials has been inspiring intense research …

Terahertz (THz) radiation has received much attention during the past few decades for its
potential applications in various fields, such as spectroscopy, imaging, and wireless …

Deflecting and changing the direction of propagation of electromagnetic waves are needed
in multiple applications, such as in lens–antenna systems, point-to-point communications …

Optical metasurfaces are regular quasi-planar nanopatterns that can apply diverse spatial
and spectral transformations to light waves. However, metasurfaces are no longer …

Optical communications, laser science, microscopy and metrology demand control of light
polarization, which is also used as a probe of chemical and biological systems. Typically …

Metamaterials are an artificial electromagnetic material composed of periodic/non-periodic
subwavelength micro-/nanostructures, ie meta-atoms. The meta-atom interacts with the …

Versatile devices, especially tunable ones, for terahertz imaging, sensing and high-speed
communication, are in high demand. Liquid crystal based components are perfect …

Actively tuning optical transmission through hybrid metasurfaces incorporated with
multifunctional active media holds great promise for the next generation optical devices. In …

We study a class of temporal metamaterials characterized by time-varying dielectric
permittivity waveforms of duration much smaller than the characteristic wave-dynamical …

In this paper, we experimentally demonstrate ultrafast optical control of slow light in the
terahertz (THz) range by combining the electromagnetically induced transparency (EIT) …