Light is quietly becoming the new language of brain technology. Instead of thick wires and skull-penetrating electrodes, a new generation of implants uses tiny LEDs and optical sensors to send ...

Scientists have turned a long-standing sci‑fi idea into working hardware, using pure light to move data wirelessly through the air instead of relying on radio waves or copper traces. The result is a ...

Imagine working with special cameras that capture light your eyes can’t even see—ultraviolet rays that cause sunburn or infrared heat signatures that reveal hidden writing. Or perhaps using ...