Invisibility cloaks may become real someday
The invisible cloak is one of the things that most people want to bring into real life. Well, it is only a matter of time before they make their way into real life from fiction.
A Harry Potter style invisibility cloak might sound fishy, however, a cloak that makes objects invisible may be underway if further research efforts are successful. A Cambridge University scientist has invented a way using which a material which sends light rays in the wrong direction, thereby making it impossible for human eyes to see it.
The researchers of the university have used light like a needle which weaves long chains of particles and create metamaterials which refract light in the wrong way.
Dr Ventsislav Valev, Cambridge’s Cavendish Laboratory, used laser light like needles stitching gold nanoparticles into long strings in water. The strings created thus can be stacked into layers just like how a lego model is made.
Using this method, several metamaterials are produced than is possible with the previous technologies. “It’s about finding a way to control that bridge between the nanoparticles”, said Dr Valev. “Joining a few nanoparticles together is fine, but scaling that up is challenging.”
When engineered at the nanoscale, metamaterials can be produced. The current research has made it possible to control light in a higher way which has opened up several possibilities as it can be used to develop an invisible cloak and military stealth technologies when further research is done.
However, before venturing into creating such cloaks, there is a lot of effort need to be put into finding how to make the right materials required for it at the nanoscale. When it is done, there’s not going to be any delay in making invisibility cloaks which would take scientific inventions and discoveries to the next level.