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Quantum dot-cavity strong-coupling regime measured through coherent reflection spectroscopy in a very high-Q micropillar
Vivien Loo, Loic Lanco, Aristide Lemaitre +4
We report on the coherent reflection spectroscopy of a high-quality factor micropillar, in the strong coupling regime with a single InGaAs annealed quantum dot. The absolute reflec…
High frequency GaAs nano-optomechanical disk resonator
Lu Ding, Christophe Baker, Pascale Senellart +4
Optomechanical coupling between a mechanical oscillator and light trapped in a cavity increases when the coupling takes place in a reduced volume. Here we demonstrate a GaAs semico…
Robust quantum dot state preparation via adiabatic passage with frequency-swept optical pulses
C. -M. Simon, T. Belhadj, B. Chatel +8
The energy states in semiconductor quantum dots are discrete as in atoms, and quantum states can be coherently controlled with resonant laser pulses. Long coherence times allow the…
Exchange constant and domain wall width in (Ga,Mn)(As,P) films with self-organization of magnetic domains
Sanaz Haghgoo, Murat Cubukcu, Hans Jürgen Von Bardeleben +3
The incorporation of Phosphorus into (Ga,Mn)As epilayers allows for the tuning of the magnetic easy axis from in-plane to perpendicular-to-plane without the need for a (Ga,In)As te…
Definition of the stimulated emission threshold in high- nanoscale lasers through phase-space reconstruction
Hachair Xavier, Rémy Braive, Gian-Lucca Lippi +7
Nanoscale lasers sustain few optical modes so that the fraction of spontaneous emission funnelled into the useful (lasing) mode is high (of the order of few 10) and the…
Spontaneous formation and optical manipulation of extended polariton condensates
Esther Wertz, Lydie Ferrier, Dimitri Solnyshkov +9
Cavity exciton-polaritons (polaritons) are bosonic quasi-particles offering a unique solid-state system to investigate interacting condensates. Up to now, disorder induced localiza…