Publication Date:
2017-12-28
Description:
Author(s): M. Gawełczyk, M. Syperek, A. Maryński, P. Mrowiński, Ł. Dusanowski, K. Gawarecki, J. Misiewicz, A. Somers, J. P. Reithmaier, S. Höfling, and G. Sęk The authors investigate theoretically and experimentally epitaxial nanostructures offering a full range of confinement regimes for excitons due to controlled cross-sectional sizes and strong variation in the elongation of the nanosize objects - from strong through intermediate to weak confinement. It is demonstrated that the symmetry breaking leads to significantly slower recombination in one of the bright states of the excitonic fine structure. The respective components are detected in time-resolved decays of unpolarized photoluminescence,which allows a full characterization of the exciton states, including their intrinsic polarization properties. [Phys. Rev. B 96, 245425] Published Wed Dec 27, 2017
Keywords:
Surface physics, nanoscale physics, low-dimensional systems
Print ISSN:
1098-0121
Electronic ISSN:
1095-3795
Topics:
Physics
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