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March 2022

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By Dr Debdatta Ray, Applied Physicist

What do hazelnuts, cupcakes and our planet have to do with an invisibility cloak? Well, it’s all about nanotechnology!

How would you feel if you had your own “invisibility cloak” just like our favourite child hero Harry Potter? Or if you were to own a smartphone as thin as a sheet of paper? Or, if your bulky camera bag became the size of a hand-held purse as your DSLR camera shrunk to one resembling the size of a fruit cake? I am sure that this sounds like science fiction to you, and you might be wondering whether it is at all possible in reality. Well, the truth is – some laboratories are at the brink of making this a reality soon. You still don’t believe this? Then follow me into the world of nanotechnology and metasurfaces – the two key players that make this dream possible!