Invisible light beyond the range of human vision plays a vital role in communication technologies, medical diagnostics, and optical sensing. Ultraviolet and near-infrared wavelengths are routinely ...

Researchers from Japan have shown that a single organic crystal converts invisible light into visible wavelengths, emitting red light under ultraviolet irradiation and green light under near-infrared ...

What just happened? At a time when fabricated videos are increasingly difficult to identify, researchers at Cornell University have unveiled a new forensic technique that could give fact-checkers a ...