Abstract
We conduct a theoretical study of the nonlinear optical dynamics of a 2D super-crystal comprising regularly spaced identical semiconductor quantum dots (SQDs), subjected to a resonant continuous wave excitation. A single SQD is considered as three-level ladder-like systems involving the ground, one-exciton and bi-exction states. We show that the super - crystal reveals a rich nonlinear dynamics, exhibiting multistability, self-oscillations and chaos. The behaviour is driven by the retarded SQD-SQD interactions and bi-exciton binding energy.
Highlights
In the last decade, the so-called metamaterials, a class of new materials not existing in nature, received a great deal of attention [1, 2])
We conduct a theoretical study of the nonlinear optical dynamics of a 2D supercrystal comprising regularly spaced identical semiconductor quantum dots (SQDs), subjected to a resonant continuous wave excitation
We show that the supercrystal reveals a rich nonlinear dynamics, exhibiting multistability, self-oscillations and chaos
Summary
The so-called metamaterials, a class of new materials not existing in nature, received a great deal of attention [1, 2]). We conduct a theoretical study of the nonlinear optical dynamics of a 2D supercrystal comprising regularly spaced identical semiconductor quantum dots (SQDs), subjected to a resonant continuous wave excitation.
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