Electronic and optical properties in non-uniformly shaped QDashes

Details Electronic and optical properties in non-uniformly shaped QDashes Electronic and optical properties in non-uniformly shaped QDashes

2012-03-18

arxiv.org/abs/1203.3977v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 8 figures

Scientific paper

We theoretically study the optical properties and the electronic structure of highly elongated quantum dots (quantum dashes) and show how carrier trapping due to geometrical fluctuations of the confining potential affects the excitonic spectrum of the system. We focus on the study of the optical properties of a single exciton confined in the structure. The dependence of the absorption and emission intensities on the geometrical properties (depth and position) of the trapping center of a quantum dash is analyzed and the dependence of the degree of linear polarization on these geometrical parameters is studied in detail.

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