Electronic structure of the p-shell in single, site-selected InAs/InP quantum dots |
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| Authors: | D Chithrani M Korkusinski S-J Cheng P Hawrylak RL Williams J Lefebvre PJ Poole GC Aers |
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| Institution: | aNational Research Council of Canada, Institute for Microstructural Sciences, Ottawa, Canada K1A 0R6;bDepartment of Materials Science and Engineering, University of Toronto, Toronto, Canada M5S 3E4;cPhysics Department, University of Ottawa, Ottawa, Canada K1N 6N5 |
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| Abstract: | The spectroscopy of single InAs/InP quantum dots emitting close to 1.55 μm is described. The dots are produced using a nanotemplate deposition technique that allows precise, a priori control of quantum dot position and electronic configuration. The experimentally observed luminescence signal from the p-shell is composed of several lines. Using exact diagonalization calculations of the emission spectra we interpret the splittings between these lines in terms of Coulomb induced, many-body renormalization of the excitonic states and a template-induced shape asymmetry of the quantum dot. |
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| Keywords: | Spectroscopy Quantum dots Site selection |
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