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Electronic States and Optical Transitions in an Asymmetric Quantum Dot Molecule | OMICS International | Abstract
ISSN: 2469-410X

Journal of Lasers, Optics & Photonics
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Review Article

Electronic States and Optical Transitions in an Asymmetric Quantum Dot Molecule

Dvoyan KG*, Tshantshapanyan AA, Melikyan HM and Vlahovic B

Department of Mathematics and Physics, North Carolina Central University, Durham, NC, USA

*Corresponding Author:
Dvoyan KG
Department of Mathematics and Physics
North Carolina Central University
Durham, NC, USA
Tel: +1 919-530-6100
E-mail: [email protected]

Received Date: March 20, 2017; Accepted Date: March 30, 2017; Published Date: March 31, 2017

Citation: Dvoyan KG, Tshantshapanyan AA, Melikyan HM, Vlahovic B (2017) Electronic States and Optical Transitions in an Asymmetric Quantum Dot Molecule. J Laser Opt Photonics 4: 152. doi: 10.4172/2469-410X.1000152

Copyright: © 2017 Dvoyan KG, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


In the framework of adiabatic approximation the electronic states and direct interband absorption of light in the asymmetric double quantum dot molecule (QDM) having a shape of Cassini lemniscate revolution are discussed. Analytical expressions for the wave functions and energy spectrum of the electron in the QDM are derived. Nonmonotonic split and step-like behavior of the energy spectrum is revealed due to the possibility of the electron tunneling between quantum dots (QDs) in the molecule. The corresponding selection rules of quantum transitions for the direct interband absorption of light are obtained. The absorption edge characteristics depending on the QDM geometrical sizes are also revealed.