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1. Why quantum dot simulation domain must contain multi-million atoms?

   11 Jan 2013 | | Contributor(s):: Muhammad Usman

   The InGaAs quantum dots obtained from the self-assembly growth process are heavily strained. The long-range strain and piezoelectric fields significantly modifies the electronic structure of the quantum dots. This imposes a critical constraint on the minimum size of the simulation domain to study...

2. Polarization Response of Multi-layer InAs Quantum Dot Stacks

   25 Oct 2011 | | Contributor(s):: Muhammad Usman

   Recent experimental measurements, without any theoretical guidance, showed that isotropic polarization response can be achieved by increasing the number of QD layers in a QD stack. In this work, we analyse the polarization response of multi-layer quantum dot stacks containing up to nine quantum...