Polarization-dependent shift in excitonic Zeeman splitting of self-assembled InAlAs quantum dots

摘要

We report the optical spectroscopic results of a single self-assembledInAlAs/Al GaAs quantum dot. The polarization-dependent shift of the Zeemansplitting in a single InAlAs QD has been observed. The induced Overhauser fieldis estimated to be 0.16 T in this InAlAs QD and the magnitude is shown to becontrollable by the degree of circular polarization of excitation light.