2004/03/19 by Ulrich Hohenester, Guido Goldoni, Elisa Molinari · 1 citation
Engineering · Physics and Astronomy · #Nanowire Synthesis and Applications #Near-Field Optical Microscopy #Semiconductor Quantum Structures and Devices #cond-mat.mes-hall
paper · pdf · doi:10.1063/1.1741033
arxiv created 2004/03/19 · openalex publication_date 2004/05/06 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We calculate the near-field optical spectra of excitons and biexcitons in semiconductor quantum dots naturally occurring at interface fluctuations in GaAs-based quantum wells, using a nonlocal description of the response function to a spatially modulated electromagnetic field. The relative intensity of the lowest, far-field forbidden excitonic states is predicted; the spatial extension of the ground biexciton state is found, in agreement with recently published experiments.