A New Design Of A Real-Life Invisibility Cloak Much Closer To Perfection

[Einstein]

OK I see so the cloaking device puts the user slightly out of phase with its surroundings?

Just based on some of my observations, doing my own research on this phenomena, it's as if the light passes right through the object as if it wasn't there. It kind of hints at teleportation technology that is just waiting to be analyzed and developed. It almost seems as is the object no longer exists within space or our universe. It might be that we are looking at a phenomena where extra dimensions are making their presence known.

 

[trekie4ever]

Just based on some of my observations, doing my own research on this phenomena, it's as if the light passes right through the object as if it wasn't there. It kind of hints at teleportation technology that is just waiting to be analyzed and developed. It almost seems as is the object no longer exists within space or our universe. It might be that we are looking at a phenomena where extra dimensions are making their presence known.

That makes sense. Some people do it on accident. The phenomena is termed "phasing." One of the rarer psychic abilities. Interesting to know they found a way to do this with technology.

 

[titorite]

I have seen this technology on youtube videos of Iraq. This tech is already in military use.

Yeah, I seen that video of the invisible soldier becoming visible just before he climbs into a tank..

That is the one.....

 

[Einstein]

Just came across this video of an invisibility cloak. I don't know if this is real. Or if some of the comments that it is a green screen effect to fool the camera. This looks like what I want for Christmas. If anybody finds a link to purchase one, let me know.

 

[bowtiesarecool]

I want one too!

 

[Opmmur]

Researchers Design First Battery-Powered Invisibility
Cloaking Device

December 20, 2013

• According to a latest news release, the researchers from the University of Texas at Austin’s CockrellSchool of Engineering has proposed the first design of a cloaking device that uses an external source of energy to significantly broaden its bandwidth of operation.
  
  The researchers explain that in computer networking and computer science, bandwidth is referred to as a measurement of bit-rate of available or consumed data communication resources, which are expressed in bits per second or multiples of it. Andrea Alù, associate professor at the Cockrell School of Engineering, and his team have proposed a design for an active cloak that draws energy from a battery, allowing objects to become undetectable to radio sensors over a greater range of frequencies.
  
  A cloak is a type of loose garment that is worn over indoor clothing and serves the same purpose as an overcoat; it protects the wearer from the cold, rain or wind for example, or it may form part of a fashionable outfit or uniform.
  
  Cloaks have so far been realized with so-called passive technology, which means that they are not designed to draw energy from an external source. They are typically based on metamaterials (advanced artificial materials) or metasurfaces (a flexible, ultrathin metamaterial) that can suppress the scattering of light that bounces off an object, making an object less visible.
  
  When the scattered fields from the cloak and the object interfere, they cancel each other out, and the overall effect is transparency to radio-wave detectors. They can suppress 100 times or more the detectability at specific design frequencies. Although the proposed design works for radio waves, active cloaks could one day be designed to make detection by the human eye more difficult.
  
  This research team has come up with a novel design for an active cloaking device, it is also revealed by the researchers that this device is able to draws energy from a battery. The proposed active cloak uses a battery, circuits and amplifiers to boost signals, which makes possible the reduction of scattering over a greater range of frequencies. This design, which covers a very broad frequency range, will provide the most broadband and robust performance of a cloak to date. Additionally, the proposed active technology can be thinner and less conspicuous than conventional cloaks.
  
  “In our case, by introducing these suitable amplifiers along the cloaking surface, we can break the fundamental limits of passive cloaks and realize a ‘non-Foster’ surface reactance that decreases, rather than increases, with frequency, significantly broadening the bandwidth of operation,” Alù said.
  
  

 

[Opmmur]

First Battery-Powered Invisibility Cloak Proposed
25 December, 2013


MessageToEagle.com - A cloaking device that uses an external source of energy to significantly broaden its bandwidth of operation is proposed by a team of researchers at The University of Texas at Austin.

This active cloak draws energy from a battery and allows objects to become undetectable to radio sensors over a greater range of frequencies.

The proposed active cloak will have a number of applications beyond camouflaging, such as improving cellular and radio communications, and biomedical sensing.

Cloaks have so far been realized with so-called passive technology, which means that they are not designed to draw energy from an external source.

They are typically based on metamaterials (advanced artificial materials) or metasurfaces (a flexible, ultrathin metamaterial) that can suppress the scattering of light that bounces off an object, making an object less visible.

When the scattered fields from the cloak and the object interfere, they cancel each other out, and the overall effect is transparency to radio-wave detectors. They can suppress 100 times or more the detectability at specific design frequencies.

Although the proposed design works for radio waves, active cloaks could one day be designed to make detection by the human eye more difficult.

"We prove that cloaks can become broadband, pushing this technology far beyond current limits of passive cloaks," said Andrea Alù, associate professor at the Cockrell School of Engineering, who along with ai-Yen Chen and postdoctoral research fellow Christos Argyropoulos co-authored the research paper.

"I believe that our design helps us understand the fundamental challenges of suppressing the scattering of various objects at multiple wavelengths and shows a realistic path to overcome them."


Click on image to enlarge

Schematics of (a) an ultrathin metasurface formed by structured metal (top) combined with lumped NICs based on CMOS technology; (b) assembly of an active non-Foster metasurface; (c) a mantle cloak designed for a dielectric infinite cylinder under TM illumination. Credit: Pai-Yen Chen, Christos Argyropoulos, and Andrea Alù

The proposed active cloak uses a battery, circuits and amplifiers to boost signals, which makes possible the reduction of scattering over a greater range of frequencies.

This design, which covers a very broad frequency range, will provide the most broadband and robust performance of a cloak to date. Additionally, the proposed active technology can be thinner and less conspicuous than conventional cloaks.

"In our case, by introducing these suitable amplifiers along the cloaking surface, we can break the fundamental limits of passive cloaks and realize a 'non-Foster' surface reactance that decreases, rather than increases, with frequency, significantly broadening the bandwidth of operation," Alù said.