(WXYZ) — Airport approach lights: they are an essential safety feature for landings, especially during bad weather. But air traffic controllers say the lighting ...

Reliably guiding and capturing optical waves is central to the functioning of various contemporary technologies, including communication and information processing systems. The most conventional ...

A team of researchers at Penn State have devised a new, streamlined approach to designing metasurfaces, a class of engineered materials that can manipulate light and other forms of electromagnetic ...

When foul weather wipes out familiar landmarks, airline pilots have the I.L.S. (Instrument Landing System) glide path to lead them in a gradual descent to the runway. At many airports they also have G ...