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Inelastic light scattering on few-electron quantum-dot atoms

Brooke, T. ; Bootsmann, M.-T. ; Wunsch, B. ; Tews, M. ; Pfannkuche, D. ; Heyn, Ch. ; Hansen, W. ; Heitmann, Detlef ; Schüller, Christian



Abstract

We investigate InAs self-assembled quantum dots (SAQD) by resonant inelastic light scattering. By applying a gate voltage between a metallic front gate and a back electrode, we can charge the quantum dots with single electrons (1–6). With resonant inelastic light scattering, we can directly observe the elementary electronic excitations of the few-electron quantum-dot atoms, which are formed by ...

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