Coherent optical spectroscopy due to lattice vibrations in a single quantum dot
We theoretically investigate a coherent optical spectroscopy of a strongly driven quantum dot without and with the coupling between exciton and phonons. In the absence of this coupling, we achieve the experimental results obtained by Xu et al. [Science 317, 929 (2007)]. However, while taking this coupling into account, we observe some new features in the probe absorption spectrum including two sharp phonon-induced sidebands. Our results also demonstrate that the lifetime of phonons will play an important role in this coherent spectroscopy.
KeywordsLattice Vibration Phonon Lifetime Optical Bloch Equation Probe Absorption Spectrum Coherent Spectroscopy
Unable to display preview. Download preview PDF.