We present a series of invisibility concentrators with simplified material parameters beyond
transformation optics. One of them can achieve the perfect invisible effect at frequencies of …

We report on the theoretical investigation of the acoustic cloaks working in complex
background media in this paper. The constitutive parameters of arbitrary-shape cloaks are …

We propose a feasible design for an annulus-based dielectric metamaterial cloak to not only
reduce Ohmic losses from metallic metamaterials but also avoid manual misalignment when …

Transformation optics has brought a wave of fanaticism among researchers to realize the
first-ever invisible cloak over the past decade. Several relevant devices, including internal …

A shrinking device is an intriguing illusion device that can convert an arbitrary object virtually
into a desired small-size object. By performing linear transformation along the orthogonal …

The inception of transformation optics has opened avenues for designing of a plethora of
applications related to the propagation of electromagnetic waves in anisotropic media. In …

Metamaterial shrinking device is a fascinating device of longstanding interest, which can
convert an arbitrary object virtually into a small-size object as one desires. To accelerate its …

Based on the transformation optics (TO) and the effective medium theory (EMT), a new
illusion media with homogeneous and isotropic materials is proposed to realize the far-field …

Transformation optics-based innovative cloak which combines the virtues of both internal
and external cloaks to enable arbitrary multi-objects hidden with visions and movements …

Based on two-step coordinate transformation along the radial direction, an optical device
with three functions is proposed. The proposed device functions as a transparent device, a …