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2D materials

2D materials

Chalcogenide glasses open up to visible and ultraviolet wavelengths

07 Dec 2021 Isabelle Dumé
A metasurface made of arsenic trisulphide
A metasurface made of arsenic trisulphide nanowires (yellow) transmits an incoming near-infrared frequency (red) as well as its third harmonic ultraviolet frequency (violet), which would normally be absorbed by the material. (Courtesy: Duke University)
A new, nanostructured version of a material known as a chalcogenide glass could find its way into a

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Isabelle Dumé is a contributing editor to Physics World
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