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New Ultra-Thin Metalens Could Replace Bulky Lenses in Cameras, Phones And Telescopes
Meta-lens works in the visible spectrum, sees smaller than a wavelength of light
High efficiency ultra-thin planar lens could replace heavy, bulky lenses in smart phones, cameras and telescopes

Harvard John A. Paulson School of Engineering and Applied Sciences
Researchers have demonstrated the first planar lens that works with high efficiency within the visible spectrum of light -- covering the whole range of colors from red to blue. The lens can resolve nanoscale features separated by distances smaller than the wavelength of light. It uses an ultra-thin array of tiny waveguides, known as a metasurface, which bends light as it passes through.


Neat! This sort of thing could have various applications in the setting from early in the timeline onward.


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