We have seen the future, and it sucks.

Flat Lens Promises Possible Revolution in Optics

13th February 2017

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Shapes on the surface of this lens are smaller than the wavelength of light involved: a thousandth of a millimetre.

The advantage, Prof Capasso said, is that these “metalenses” avoid shortfalls – called aberrations – that are inherent in traditional glass optics.

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