UCLA doctoral student Yilin Wong left a sample out by mistake. It was a small chip made of germanium, topped with thin layers ...
Though still only in the prototype stage, this flat lens could one day be used on space telescopes, and perhaps even on ...
The devices are rumored to feature a new rear design combining aluminum and glass. The top half of the ... and flat lens with microscopic patterns etched onto it that can focus light more precisely.
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