Abstract
Applying high-power continuous-wave resonant -shell excitation to a single self-assembled InGaAs quantum dot, we demonstrate the generation of postselected single-indistinguishable photons from the Mollow triplet sidebands. A sophisticated spatial filtering technique based on a double Michelson interferometer enabled us to separate the spectrally close lying individual Mollow components and perform almost background-free two-photon interference measurements. Showing high consistency with the results of an independent determination of the emission coherence of ps, our analysis reveals a close to ideal visibility contrast of up to . Due to their easy spectral tunability and their distinct advantage of cascaded-photon emission between the individual Mollow sidebands, they resemble a versatile tool for quantum information applications.
- Received 14 March 2013
DOI:https://doi.org/10.1103/PhysRevB.87.241302
©2013 American Physical Society