Latta, C., Högele, A., Zhao, Y., Vamivakas, A. N., Maletinsky, P., Kroner, M., ...
Resonant laser scattering along with photon correlation measurements have established the atom-like character of quantum dots. Here, we present measurements which challenge this identification for a...
Seidl, S., Kroner, M., Dalgarno, P. A., Högele, A., Smith, J. M., Ediger, M., ...
We have performed detailed photoluminescence (PL) and absorption spectroscopy on the same single self-assembled quantum dot in a charge-tunable device. The transition from neutral to charged exciton...
Absorptive and dispersive optical responses of excitons in a single quantum dot (2005)
Alén, B., Högele, A., Kroner, M., Seidl, S., Karrai, K., Warburton, R. J., ...
We have determined both the real and imaginary parts of the dielectric polarizability of a single quantum dot. The experiment is based on the observation and the manipulation of Rayleigh scattering...
Voltage-controlled electron-hole interaction in a single quantum dot (2004)
Högele, A., Seidl, S., Kroner, M., Karrai, K., Atatüre, M., Dreiser, J., ...
The ground state of neutral and negatively charged excitons confined to a single self-assembled InGaAs quantum dot is probed in a direct absorption experiment by high resolution laser spectroscopy....
Spin-selective optical absorption of singly charged excitons in a quantum dot (2004)
Högele, A., Kroner, M., Seidl, S., Karrai, K., Atatüre, M., Dreiser, J., ...
We investigate high resolution laser absorption spectroscopy of a single InGaAs/GaAs self-assembled quantum dot embedded in a field-effect structure. We show experimentally that the interband optical...
Voltage-Controlled Optics of a Quantum Dot (2004)
Högele, A., Seidl, S., Kroner, M., Karrai, K., Warburton, R. J., Gerardot, B. D., ...
We show how the optical properties of a single semiconductor quantum dot can be controlled with a small dc voltage applied to a gate electrode. We find that the transmission spectrum of the neutral...