Carrier Trapping in a Quantum Dash: Optical Signatures
P. Kaczmarkiewicza, b, P. Machnikowskia and T. Kuhnb
aInstitute of Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
bInstitut für Festkörpertheorie, Westfälische Wilhelms-Universität, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany
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We theoretically study the optical properties and the electronic structure of highly elongated quantum dots (quantum dashes) and show how geometrical fluctuations affect the excitonic spectrum of the system. The dependence of the absorption intensities on the geometrical properties (depth and length) of the trapping center in a quantum dash is analyzed and the dependence of the degree of the linear polarization on these geometrical parameters is studied.
DOI: 10.12693/APhysPolA.122.997
PACS numbers: 78.67.Hc, 73.21.La