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Single metalens focuses all colors of the rainbow in one point

January 1, 2018

Metalenses -- flat surfaces that use nanostructures to focus light -- promise to revolutionize optics by replacing the bulky, curved lenses currently used in optical devices with a simple, flat surface. But, these metalenses have remained limited in the spectrum of light they can focus well. Now, a team of researchers has developed the first single lens that can focus the entire visible spectrum of light -- including white light -- in the same spot and in high resolution. Full Story

Harvard John A. Paulson School of Engineering and Applied Sciences

The National Science Foundation (NSF) is an independent federal agency that supports fundamental research and education across all fields of science and engineering. In fiscal year (FY) 2017, its budget is $7.5 billion. NSF funds reach all 50 states through grants to nearly 2,000 colleges, universities and other institutions. Each year, NSF receives more than 48,000 competitive proposals for funding and makes about 12,000 new funding awards.

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