Noticias al minuto

 
 
Scientists have created the first device to make an invisible object in three dimensions.
The "mantle", whose details are published in the journal Science, can hide an object using light with a wavelength close to that of light visible to mankind.
The aircraft had been previously developed to hide objects of light traveling in the same direction, but from any other angle the object remained visible to humans.
Now managed to make the invisible object in three dimensions
Scientists  express Karlsruhe Institute of Technology in Germany, this is an initial but important step to humanity  toward true invisibility cloaks.
According to the Noticiero said Professor Tolga Ergin, who led the study, the mantle is based on the concept that it is possible to "transform" the space with a material.
Profesor Tolga Ergin and his crew designed a photonic metamaterial that can influence the behavior of light rays.
"You can think of any type of processing you want to perform and create a material that simulates the transformation," explains the scientist.
The base design was proposed by Professor John Pendry of Imperial College London, who also participated in the study.
"He proposed the theoretical design of an object hidden behind a package and have that lump go away," explains Professor Ergin.
"It's like a carpet in a mirror. When you hide an object under a package and it appears in the mirror and see a distortion in the reflected image," he says.
"If we put the mantle on the lump it does bend light so that the distortion disappears. And you have the impression that you are seeing is a mirror plane," he adds.
Bypass light
The strategy, he adds the scientist, is to change the speed and direction in which light travels through the material, or change the refractive index of the material.
The researchers managed to do this using a polymer made of tiny glass rods.
"By changing the thickness of the rods can be changed by the air ratio polymer" explains Dr. Ergin.


Ultimas Noticias


Noticiero



Leave a Reply.