For decades, engineers have dreamed of a single device that could fluently translate between the lightning-fast language of light and the high-bandwidth whisper of terahertz waves. Now, a team at EPFL and Harvard has done exactly that—on a chip so small it could ride on your fingernail.
Terahertz (THz) radiation sits in the electromagnetic no man’s land between microwaves and infrared light—too fast for conventional radio tech, too tricky for optical systems to harness directly. But if you could get THz signals to talk to existing optical networks, you’d open the door to ultra-secure 6G communications, millimeter-precision radar, and data transfer speeds that make today’s fiber optics look like dial-up.
Continue reading… “The Chip That Speaks Two Languages: Bridging Light and Terahertz for the Next Communication Leap”