Scientists have captured the moment a laser "comes to life"—and what they found challenges long-held beliefs. Using a special ...

We present a theoretical and experimental evaluation of any general order harmonic distortion in a slow and fast light propagation phase shifter based on coherent population oscillations in a ...

The third harmonic oscillation around 1 THz at room temperature and its frequency change with bias voltage were observed in GaInAs/AlAs double-barrier resonant tunneling diodes integrated with slot ...