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Frequency combs and variational principles

Frequency combs and variational principles

Nature has a way of finding optimal solutions to complex problems. For example, despite the billions of ways for a single protein to fold, proteins …

 

Laser radio transmitter

Laser radio transmitter

In a paper published in the Proceedings of the National Academy of Sciences, researchers from the Harvard John A. Paulson School of Engineering and Applied …

 

Broadband achromatic metalens focuses light regardless of polarization

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 …

 

Meta-surface corrects for chromatic aberrations across all kinds of lenses

Meta-surface corrects for chromatic aberrations across all kinds of lenses

In a new work, we show that dispersion engineering of metalenses can be used to correct the aberrations of traditional optical elements, including complex objective …