Modern life runs on light. Fiber-optic cables move data across continents, lasers guide surgeries, and photons sit at the heart of quantum technologies. Yet one long-standing goal has remained elusive ...

Researchers are learning to flip light on and off one particle at a time, turning single photons into a controllable resource instead of a random byproduct of exotic materials. By engineering ...

When switched off, the gate photon can be retrieved, too. Tried to reproduce with a magnifying glass, ice cube and Clock radio. Now stuck in the year 1983, send help and denim clothing.

Researchers at Purdue University have achieved a long-sought milestone, demonstrating what they call a “photonic transistor” that operates at single-photon intensities. There are few technologies more ...

Transistor lasers represent a hybrid semiconductor device that unites the signal-amplifying capabilities of a bipolar transistor with the coherent light emission of a laser. Central to their operation ...

Shuo Sun is an associate fellow of JILA and an assistant professor of the Department of Physics at the University of Colorado Boulder. He obtained his BS in 2011 from Zhejiang University, China, and ...