Browse Physics

Calculations suggest that there are ways to drive spasers—the nanoplasmonic counterparts of lasers—by standard electrical currents.

Two separate groups demonstrate the temporary storage and subsequent release of photons using very different quantum devices.

Coherent amplification of phonons may become possible with monolithic semiconductor laser cavities that support both optical and acoustic modes.

Graphene researchers show the leakage of heat from electrons to sound vibrations is small enough to allow for sensitive light detectors.

Local laser heating is used to image thermally driven spin currents and voltages.

Light signals can be stored on a semiconductor chip, according to computer simulations.

A smattering of impurities might be the key to more efficient LEDs made from plastics.