Initially proposed to achieve strong noise isolation levels beyond the mass-density law,
acoustic metamaterials (AMMs) have now overturned the conventional views in all aspects …

Underpinned by the advent of metamaterials, transformation optics offers great versatility for
controlling electromagnetic waves to create materials with specially designed properties …

For centuries, the conventional approach to lens design has been to grind the surfaces of a
uniform material in such a manner as to sculpt the paths that rays of light follow as they …

Since the advent of transformation optics and scattering cancelling technology, a plethora of
unprecedented metamaterials, especially invisibility cloaks, have been successfully …

In this work, a broadband and broad-angle polarization-independent random coding
metasurface structure is proposed for radar cross section (RCS) reduction. An efficient …

The recently introduced transformation-electromagnetics techniques provide a new
methodology for designing devices that possess novel wave-material interaction properties …

In this study, the topological valley Hall edge states of elastic waves in phononic crystals are
realized based on material differences. A phononic crystal structure with lantern rings is …

Recently, there are emerging demands for isotropic material parameters, arising from the
broadband requirement of the functional devices. Since inverse Laplace's equation with …

In transformation optics, the space transformation is viewed as the deformation of a material.
The permittivity and permeability tensors in the transformed space are found to correlate with …

An elliptical invisible cloak is proposed using a coordinate transformation in the elliptical-
cylindrical coordinate system, which crushes the cloaked object to a line segment instead of …