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 embedded in silicon microcavity that exhibits a distributed feedback identified by the FIR transmission spectra. The excitonic normal-mode coupling 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 Fei+–Bs− pairs.