New nanomanufacturing technique advances imaging,
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More than a decade ago, theorists predicted the possibility of a nanolens—a chain of three nanoscale spheres that would focus incoming light into a spot much smaller than possible with conventional microscopy . Such a device would make possible extremely high-resolution imaging or biological sensing. But scientists had been unable to build and arrange many nanolenses over a large area.
“That’s where we came in,”......
http://www.rdmag.com/news/2015/12/new-nanoman...technology
hmm......nanolens,....Fresnel....Solar