Long coherence times in self-assembled s
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D. Birkedal; K. Leosson; J.M. Hvam
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Article
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2002
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Elsevier Science
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English
β 185 KB
We report measurements of ultra-long coherence in self-assembled quantum dots. Transient four-wave mixing experiments at 5 K show an average dephasing time of 372 ps, corresponding to a homogeneous linewidth of 3.5 Β΅eV, which is significantly smaller than the linewidth observed in single-dot lumines