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Nanoscale planar lenses outperform the best glass, revolutionise optics...

Discussion in 'Science' started by antipody, Jun 6, 2016.

  1. antipody

    antipody Member

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    http://science.sciencemag.org/content/352/6290/1190

    Wow. This is the sort of step in technology that happens once every few centuries :thumbup:

     
  2. RobRoySyd

    RobRoySyd Member

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    I don't see these replacing conventional lenses for photography at the moment as these lenses only work at a narrow bandwidth.
     
  3. Cadbury

    Cadbury Member

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    Would this tech be of any value to large optical telescopes?
     
  4. Walshy

    Walshy Member

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    I wouldn't think so - the cost of printing one of these lenses at anything more than a few mm across would be far greater than the cost of manufacturing & supporting a 'traditional' lens/mirror element.

    If you consider that a 'small' telescope these days has a primary around 1-2 metres, and the largest silicon wafers for chip production are only about 300-400 mm across, there's a big jump in capability required, too. You could do composite mirrors, of course, but the cost would be pretty high.
     

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