Computers powered by frickin' laser beams just came a step closer. Light-based, or photonic, computers would theoretically be much faster and smaller than the electronic computers we use today, but ...

Textile dyeing accounts for one fifth of all industrial wastewater pollution generated worldwide and much of it, particularly in developing countries in Asia, goes untreated. Now, China is employing ...

An optical transistor that uses one laser beam to control another could form the heart of a future generation of ultrafast light-based computers, say Swiss researchers. Conventional computers are ...