Effect of quantizing magnetic field on the spectrum and damping of polaritons in double two-dimensional electronic systems

Nonradiative (surface and bulk) polaritons in a semiconductor structure com posed of two heterojunctions GaAs/AlxGa1-xAs are investigated under the int eger quantum Hall effect (IQHE) conditions. The dispersive, polarization, a nd energy characteristics of these polaritons are determined including ener gy dissipation in the two-dimensional electron semiconductor layers. The ph ase and group velocities of surface and bulk polaritons are shown to be qua ntized under the IQHE conditions. It is found that resonance coupling of tw o surface polariton modes may occur in double GaAs/AlxGa1-xAs heterojunctio ns. Possible experimental observation of nonradiative polaritons is discuss ed. (C) 2000 MAIK "Nauka/Interperiodica".