LEDs, or light-emitting diodes, are essential components in near-eye displays like virtual reality and augmented reality ...

If you had an array of high power addressable LEDs, how would you project them onto a wall? Perhaps you’d use a Fresnel lens, or maybe an individual lens on the top of each. [Joo] faced this ...

Electrically controlled silicon photonic devices use carbon nanotube heaters to modulate and filter terahertz waves on chip ...

Optical and scanning electron microscope images of a nano-LED device that uses AC power instead of DC power, which could be a game-changer for sharper near-eye displays.