Researchers have developed a polarization-insensitive metalens that can achromatically focus light across the visible spectrum without aberrations. This flat lens could be used for everything from virtual or augmented reality headsets to microscopy, lithography, sensors, and displays.
from Top Technology News -- ScienceDaily https://www.sciencedaily.com/releases/2019/01/190121103340.htm
from Top Technology News -- ScienceDaily https://www.sciencedaily.com/releases/2019/01/190121103340.htm
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