Optical near-field response of semiconductor quantum dots

B. Hanewinkel, A. Knorr, P. Thomas, S.W. Koch
1997 Physical Review B (Condensed Matter)  
The near-field response of optically excited semiconductor quantum dots is theoretically investigated for the collection and illumination mode of a scanning near-field optical microscope. The study includes resolution, spectral line shape, and field distributions of single and interacting dots. It is shown that in contrast to near-field excitation of molecules with large dipole moments, the line shape and position of typical semiconductor quantum dots can be determined without a disturbance if
more » ... t a disturbance if realistic values for the intrinsic linewidth are assumed. The comparison of regular and irregular quantum-dot distributions yields characteristic signatures for disordered arrays, necessary to understand the optical response of realistic semiconductor quantum dot samples.
doi:10.1103/physrevb.55.13715 fatcat:r2c3zdda2veghcuyfrix42omia