Sa. Bystrimovich et al., NONLINEAR-OPTICAL ABSORPTION NEAR THE FUNDAMENTAL ABSORPTION-EDGE OF HEAVILY-DOPED N-TYPE IN, Semiconductors, 28(6), 1994, pp. 590-593
The nonlinear optical transmission of heavily doped, lightly compensat
ed n-type InP:Sn has been measured in the spectral region near the fun
damental absorption edge. Nonlinear transmission spectra have also bee
n calculated on the basis of a semiclassical model of fluctuational le
vels. A screening of the tail of the density of states by nonequilibri
um carriers plays an important role in the observed bleaching in this
spectral region.