Electron‐dipole resonance of impurity centres embedded in silicon microcavities

Abstract

We present the findings of high efficient light absorption by self-assembled quantum well (SQW) embedded in silicon microcavity that exhibits a distributed feedback identified by the FIR transmission spectra. The excitonic normal-mode coupling (NMC) is found to result in high efficient bound exciton photoluminescence in the range of the Rabi splitting. The localisation of this exciton at an iron-boron pair is shown to cause giant exchange splitting created by strong sp-d mixing in the absence of the external magnetic field, which is revealed by the angular dependencies of photoluminescence spectra that are evidence of the electron-dipole resonance of the trigonal iron-boron pairs. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)