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A group of researchers at the Harvard School of Engineering and Applied Sciences (SEAS) has now brought out a newly designed pioneering lens, which as per a recent report is flawless.
The lens is ultrathin and flat with some 60 nanometers in thickness as compared to previous lenses. A nanometer is equivalent to a billionth part of a metre, as per the findings published newly in the journal Nano Letters.
While the two-dimensional lens is flat, it is being said that the result it provides is always au fait. Also, its 2D design does not affect its focusing power that easily reaches the ultimate physical limit created by the laws of diffraction.
While standard wide-angle lenses sometimes show anomalies like a 'fish-eye' effect, the team says that one would report such a problem with the new lens. It has been told that even corrective techniques, whether simple or complex, are not required.
The lens has been developed using silicon and gold, which play a vital role in revealing perfect outcomes. A nanometre-thin layer was used in combination with wafer-thin layer of silicon plated on it. "In the future we can potentially replace all the bulk components in the majority of optical systems with just flat surfaces”, affirmed lead author Francesco Aieta.