Harvard engineers unveiled the world's first visible-spectrum metasurfaces—ultra-thin, flat devices patterned with nanoscale ...

But, what if you want your camera to take photos of the full light spectrum? This is particularly useful for astrophotography, where infrared light dramatically adds to the effect. Generally ...

UVC light also works by destroying the DNA of pathogens, which makes it effective against "superbugs." But this broad-spectrum light ... that sell UVC pen-like devices and UVC bottles claim ...