  A relativistic pair-plasma which contains a high excitation of electrostatic
turbulence could produce intense radiation at brightness temperature in excess
of 10^22 K by stimulated scattering. Important relativistic effects would
include the broadband frequency response of the plasma and Compton-boosting of
the scattered radiation. In radio-frequency relativistic plasma, the optical
depth can be as small as hundreds of meters. When the plasma wave excitation
and particle distributions are one-dimensional, the frequency-dependent angular
distribution of the emission exhibits characteristics of pulsar emission.
