DUKE UNIVERSITY relates at https://scitechdaily.com/ a metasurface made of arsenic trisulfide nanowires (yellow) transmit an incoming near-infrared frequency (red) as well as its third harmonic ultraviolet frequency (violet), which would normally be absorbed by the material. Credit: Duke UniversityNewly proven physics opens chalcogenide glasses to applications at visible and ultraviolet wavelengths.Electrical engineers at Duke University have…
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