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Broadband achromatic metalens focuses light regardless of polarization

In this work, we show that anisotropic nanofins can be used as a building block to realize achromatic as well as polarization-insensitive metalenses. These metalenses are capable of imaging color photos of the letters RGB and a circular rainbow on a mobile phone.

This manuscript was published in Nature Communications and can be found here.

See also a press release from Harvard SEAS here.