Molecular beam epitaxy was used to fabricate GaAsN/GaAs and InGaAsN/GaAs he
terostructures, and the influence of the growth regimes on their characteri
stics was studied. It is shown that implantation of nitrogen causes a subst
antial long-wavelength shift of the radiation. The possibility of obtaining
1.4 mu m radiation at room temperature was demonstrated using In0.28Ga0.72
As0.97N0.03/GaAs quantum wells. (C) 1998 American Institute of Physics. [S1
063-7850(98)01512-2].