A cloaking coating for murky media

@article{Smith2014ACC,
  title={A cloaking coating for murky media},
  author={David R. Smith},
  journal={Science},
  year={2014},
  volume={345},
  pages={384 - 385}
}
Objects shrouded in fog disappear entirely with simple coating [Also see Report by Schittny et al.] For centuries, magicians have created the illusion of invisibility with the assistance of smoke and mirrors: Mirrors redirect light and fool our eyes; smoke conceals the trickery. The concept of redirecting light has become routine in the ongoing development of “invisibility cloaks”—constructs of specially designed materials that can route light around an object, making it appear as if both the… 

Meta-materials: Threat to the Global Status Quo?

  • M. KosalJ. Stayton
  • Materials Science
    Advanced Sciences and Technologies for Security Applications
  • 2019
This chapter investigates the disruptive potential of metamaterials, synthetic nano-structured materials, which possess special physical properties that enable the user to be invisible and to evade

Broadband and Robust Metalens with Nonlinear Phase Profiles for Efficient Terahertz Wave Control

Metasurfaces, 2D artificial electromagnetic media, open up a new frontier of functional device design ranging from radio waves to the visible region. Particularly, metasurface‐based lenses are

Numerical Investigation on Graphene Based Mantle Cloaking of a PEC Cylinder

  • C. RizzaL. Matekovits
  • Physics
    2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting
  • 2019
A specific coating for the achievement of the mantle cloaking of a metallic cylinder in the Terahertz frequencies is investigated. The coat is realized starting from a dielectric layer covering the

Absorption-Induced Image Resolution Enhancement in Scattering Media

Highly scattering media pose significant challenges for many optical imaging applications due to the loss of information inherent to the scattering process. Absorption can also result in significant

Flexible frequency selective metamaterials for microwave applications

A thin and flexible meetamaterial structure with small-scale unit cell that gives EM metamaterials far greater flexibility in numerous applications, by incorporating ferrite materials, is developed.

Ferrite Film Loaded Frequency Selective Metamaterials for Sub-GHz Applications

This paper developed an innovative method to reduce the resonant frequency of metamaterals by integrating the meta-structures with ferrite materials of higher permeability, so that the cell size of theMeta-structure can be scaled down.

Universal behavior of a dispersive Dirac cone in gradient-index plasmonic metamaterials

We demonstrate analytically and numerically that the dispersive Dirac cone emulating an epsilon-near-zero (ENZ) behavior is a universal property within a family of plasmonic crystals consisting of

Light–Matter Interaction within Extreme Dimensions: From Nanomanufacturing to Applications

Light–matter interaction is a key branch of photonics/optical material science. As the research emphasis in recent years has shifted from microscale toward nanoscale, light–matter interaction within

Distributed camouflage for swarm robotics and smart materials

We present distributed algorithms for a swarm of static particles to camouflage in an environment by generating colored patterns similar to those perceived in the environment, mimicking the

References

SHOWING 1-6 OF 6 REFERENCES

Invisibility cloaking in a diffusive light scattering medium

It is shown that the situation is different for surroundings leading to multiple light scattering, according to Fick’s diffusion equation, and cylindrical and spherical invisibility cloaks made of thin shells of polydimethylsiloxane doped with melamine-resin microparticles are fabricated.

Achieving transparency with plasmonic and metamaterial coatings.

  • A. AlúN. Engheta
  • Physics
    Physical review. E, Statistical, nonlinear, and soft matter physics
  • 2005
Here it is seen how a proper design of these lossless metamaterial covers near their plasma resonance may induce a dramatic drop in the scattering cross section, making these objects nearly "invisible" or "transparent" to an outside observer--a phenomenon with obvious applications for low-observability and noninvasive probe design.

Metamaterial Electromagnetic Cloak at Microwave Frequencies

This work describes here the first practical realization of a cloak of invisibility, constructed with the use of artificially structured metamaterials, designed for operation over a band of microwave frequencies.

Three-dimensional broadband omnidirectional acoustic ground cloak.

The design and experimental characterization of an almost perfect three-dimensional, broadband, and, most importantly, omnidirectional acoustic device that renders a region of space three wavelengths in diameter invisible to sound.

Ultrathin three-dimensional thermal cloak.

The first experimental realization of a three-dimensional thermal cloak shielding an air bubble in a bulk metal without disturbing the external conductive thermal flux is reported, making it 2 orders smaller than previous thermal cloaks.

Controlling Electromagnetic Fields

This work shows how electromagnetic fields can be redirected at will and proposes a design strategy that has relevance to exotic lens design and to the cloaking of objects from electromagnetic fields.