Suppression of phase relaxation in semiconductors; coherent emission of the active medium of a picosecond injection laser
Belenov E. M., Vasil'ev P. P.
The envelope of a picosecond pulse emitted by a Q-switched injection laser operating in the strong-field regime has been observed to split into subpulses. The effect is explained on the basis of a suppression of intraband relaxation in the GaAs by the strong field of the pulse and on the basis of a manifestation of a coherent interaction of the electromagnetic field with the semiconductor.