Journal
PHYSICAL REVIEW B
Volume 66, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.66.041306
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We report systematic linewidth measurements on the fundamental transition of single InGaAs quantum dots. We demonstrate the quenching of the acoustic-phonon dephasing for quantum dots spectrally well separated from the band tail of the wetting layer. We achieve a line narrowing with linewidth of the order of few mueV by tailoring the influence of the electrostatic environment through a decrease of the excess energy in the nonresonant excitation process.
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