Single Metalens Focuses All Colors of the Rainbow in One Point

News   Jan 04, 2018 | Original Story by Leah Burrows for Harvard John A. Paulson School of Engineering and Applied Sciences.

 
Single Metalens Focuses All Colors of the Rainbow in One Point

This flat metalens is the first single lens that can focus the entire visible spectrum of light — including white light — in the same spot and in high resolution. It uses arrays of titanium dioxide nanofins to equally focus wavelengths of light and eliminate chromatic aberration. Credit: Jared Sisler/Harvard SEAS.

 
 
 

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