Scientists are Close to Relaising the scientific fantasies As we see Regularly in science Fiction movies,the may be close In near future the Flying cars,Warp effects of Star trek,3d Holograms Of Starwars can be Reality.
As cloaks designed to shield objects from Tera Hertz and Near Infrared waves have already been designed by phyicsts at St. Andrews Universityin Scottland,they have develpoed the Metamaterial which can create independent flexible material that could theoretically appear invisible to naked eye ideal for use in a wide range of applications including the Invisibility cloak.It manipulates The Behaviour of Light.But these Materials only affected light of a colour far beyond the human eye’s ability to discern.
The tiny structures in the newly Created film bond together to create a meta-material which causes objects to become invisible by bending light around them.
The New York Journal of Physics has reported the demonstration and physicists worldwide have declared the approach a giant step forward in light-bending technology. They haven’t, so far, commented on the social implications of an invisibility cloak.
Meta-materials work by blocking and channelling beams of light at a fundamental level, bouncing light waves in prescribed directions in order to achieve a planned result. The laws of optics work in such a way that light can only be manipulated by structures around the same size as the light-waves’ lengths.
Until the recent demonstration, the most striking former demonstrations of invisibility have used light waves with a longer wavelength which the human eye cannot detect. The reason for this is that it is far easier to construct these materials with larger structures.
The shorter light waves that the human eye can discern require nanostructures, which stretch the boundaries of present-day manufacturing techniques to the limit. The author of the paper presented at the demonstration, St Andrew’s University’s Andrea di Falco, said that the most important step in the process was believing that it could be done.
Dr di Falco used a thin polymer film to fabricate a single layer instead of the previously-used brittle silicon and proved that the film had the properties to construct a 3D flexible meta-material. The physicist Ortwin Hess, holder of the Leverhulme Chair in meta-materials, has welcomed the work as ‘a huge step forward in many ways’. He told reporters that it’s not yet an invisibility cloak but it’s the right way forward.
Read more:
1.Newyork journal of Physics
2. Labspaces
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