Scientists create invisibility cloak capable of concealing 3D objects
If you ever hoped an invisibility cloak was a real thing, you will be happy to know that one now exists.
Unfortunately, it will only work on something incredibly small, specifically microscopic.
According to the scientists involved, the development is potentially scalable, so larger versions may come in the future.
What makes objects visible is a combination of the way they scatter the light hitting them and the brain's ability to decipher the results.
To date, most invisibility developments work on the idea that if light never hits an item, then the mind has nothing to work with.
The one created by this team doesn't try to keep the contact from happening, but rather manipulates the scatter so the 3D mass reads as a flat surface.
A Berkeley Lab press release notes, "In the...study when red light struck an arbitrarily shaped 3D sample object measuring approximately 1,300 square microns in area that was conformally wrapped in the gold nanoantenna skin cloak, the light reflected off the surface of the skin cloak was identical to light reflected off a flat mirror, making the object underneath it invisible even by phase-sensitive detection."
While the group has successfully concealed microscopic objects, they admit more work needs to be done before it's applied to practical uses.
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