We use slit-confocal microscopy to study spatial diffusion of carriers between quantum dot ensembles coupled through a wide wire-like barrier. When exciting carriers above this barrier we observe a carrier diffusion on a microns scale.
© 2004 Optical Society of America
S. Mackowski, T. Gurung, H. E. Jackson, L. M. Smith, T. Schallenberg, K. Brunner, and L. W. Molenkamp, "Spatial diffusion of carriers in a quantum dot system grown by shadow mask controlled epitaxy," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2004), paper IFE6.
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