Semiconductor streamer lasers

A new method of electrically exciting generation of light behind the ionization front in streamers is theoretically and experimentally considered. Light intensity of
\sim 10^{9}
W/cm
²
was generated in Cd
x
Se
1-x
and ZnSe crystals from radiation regions having characteristic dimensions of
\sim5 \mu
m, and moving with velocities
\sim3.10^{8}
cm/s.