Stimulated emission of particles by 1+1 dimensional black holes
  The stimulated emission of massless bosons by a relativistic and the CGHS black hole are studied for real and complex scalar fields. The radiations induced by one-particle and thermal states are considered and their thermal properties investigated near the horizon. These exhibit both thermal and non-thermal properties for the two black-hole models. 
F. Vendrell (University of Lausanne, Switzerland)