Metamaterials, artificially structured materials consisted of sub-wavelength unit cells, have
attracted tremendous attentions in physics, material science, and engineering over the past …

Tailoring the electromagnetic responses by metasurface greatly expands one's capabilities
to manipulate light in a controlled manner. Either amplitude or phase of the incident wave …

Invisibility devices have captured the human imagination for many years. Recent theories
have proposed schemes for cloaking devices using transformation optics and conformal …

Since invisibility cloaks were first suggested by transformation optics theory, there has been
much work on the theoretical analysis and design of various types and a few experimental …

Luneburg lenses have superior performance compared with conventional lenses made of
uniform materials with specially designed surfaces, but they are restricted by the difficulty of …

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

The ability to render objects invisible with a cloak that fits all objects and sizes is a long-
standing goal for optical devices. Invisibility devices demonstrated so far typically comprise a …

We report an invisibility carpet cloak device, which is capable of making an object
undetectable by visible light. The cloak is designed using quasi conformal mapping and is …

Metamaterials (MTMs) are artificial materials composed of subwavelength particles, which
are engineered to achieve various electromagnetic (EM) responses. Since the first practical …

The invisibility cloak has been a long-standing dream for many researchers over the
decades. Using transformation optics, a three-dimensional (3D) object is perceived as …