Tunable optical Aharonov-Bohm effect in a semiconductor quantum ring

Abstract

By applying an electric field perpendicular to a semiconductor quantum ring we show that it is possible to modify the single particle wave function between quantum dot (QD)-like to ring-like. The constraints on the geometrical parameters of the quantum ring to realize such a transition are derived. With such a perpendicular electric field we are able to tune the Aharanov-Bohm (AB) effect for both single particles and for excitons. The tunability is in both the strength of the AB-effect as well as in its periodicity. We also investigate the strain induce potential inside the self assembled quantum ring and the effect of the strain on the AB effect.

References in corpus (2)

• Optical Aharonov-Bohm effect in stacked type-II quantum dots
• Exciton storage in a nano-scale Aharonov-Bohm ring with electric field tuning

Cited by in corpus (2)

• Aharonov-Bohm effect for excitons in a semiconductor quantum ring dressed by circularly polarized light
• Electric and magnetic fields effects on the excitonic properties of elliptic core-multishell quantum wires