Single metalens focuses all colors of the rainbow in one point

Single metalens focuses all colors of the rainbow in one point 01/04/2018 11:12 AM EST Metalenses -- flat surfaces that use nanostructures to focus light -- promise to revolutionize optics by replacing the bulky, curved lenses currently used in . But, these metalenses have remaioptical devices with a simple, flat surfacened limited in the spectrum of light they can focus well. Now, a team of Harvard 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 at https://www.seas.harvard.edu/news/2018/01/single-metalens-focuses-all-colors-of-rainbow-in-one-point Source Harvard John A. Paulson School of Engineering and Applied Sciences This is an NSF News From the Field item. Follow NSF:  This email was sent using GovDelivery Communications Cloud on behalf of: National Science Foundation Update · 2415 Eisenhower Avenue, Alexandria, VA 22314 · 703-292-5111