Abstract
Absorption of single InGaAs self-assembled quantum dots is spatially resolved in resonance with the to polaron transitions around wavelength. We show that the spatial resolution down to 50 nm () combined with the analysis of the absorption nanoscopy images provides a measurement of the homogeneous broadening at room temperature. The meV measured - homogeneous broadening supports the calculated value accounting for acoustic phonon-induced decoherence.
- Received 2 December 2010
DOI:https://doi.org/10.1103/PhysRevB.83.035302
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