Dephasing of Triplet-Sideband Optical Emission of a Resonantly Driven InAs/GaAs Quantum Dot inside a Microcavity
Abstract
Detailed properties of resonance fluorescence from a single quantum dot in a micropillar cavity are investigated, with particular focus on emission coherence in the dependence on optical driving field power and detuning. A power-dependent series over a wide range reveals characteristic Mollow triplet spectra with large Rabi splittings of |Ω|≤15GHz. In particular, the effect of dephasing in terms of systematic spectral broadening ∝Ω2 of the Mollow sidebands is observed as a strong fingerprint of excitation-induced dephasing. Our results are in excellent agreement with predictions of a recently presented model on phonon-dressed quantum dot Mollow triplet emission in the cavity-QED regime.
- Publication:
-
Physical Review Letters
- Pub Date:
- June 2011
- DOI:
- 10.1103/PhysRevLett.106.247402
- arXiv:
- arXiv:1103.1594
- Bibcode:
- 2011PhRvL.106x7402U
- Keywords:
-
- 78.67.Hc;
- 42.50.Dv;
- 78.55.-m;
- Quantum dots;
- Nonclassical states of the electromagnetic field including entangled photon states;
- quantum state engineering and measurements;
- Photoluminescence properties and materials;
- Condensed Matter - Mesoscale and Nanoscale Physics
- E-Print:
- Phys. Rev. Lett. 106, 247402 (2011)