Far infrared absorption in triangular and square quantum dots: characterization of corner and side modes

Abstract

The far-infrared absorption of triangular and square two-dimensional quantum dots is studied by means of time simulations of the density oscillations within the time-dependent local-spin-density approximation. The absorption is spatially analyzed using a local-response theory that allows the identification of {\em corner} and {\em side} modes in the geometric nanostructures. The evolution with a vertical magnetic field of varying intensity is also discussed.

9 pages,7 figures in separate files

Cited by in corpus (4)

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• Geometric and impurity effects on quantum rings in magnetic fields
• Rectangular quantum dots in high magnetic fields
• Role of spin-orbit coupling in the far infrared absorption of lateral semiconductor dots