Near-field photoluminescence imaging spectroscopy of GaAs quantum dots was discussed. The center-of-mass wave functions of an exciton confined in a GaAs quantum dot was mapped out. It was found that the spatial profile of the exciton emission differs from that of biexciton emission. This is due to different distributions of the polarization field for the exciton and biexciton recombinations.
|ジャーナル||Physical Review Letters|
|出版物ステータス||Published - 2003 10 24|
ASJC Scopus subject areas
- Physics and Astronomy(all)