Femtosecond Transfer and Manipulation of Persistent Hot-Trion Coherence in a Single CdSe/ZnSe Quantum Dot

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2021
Autor:innen
Holtkemper, Matthias
Reiter, Doris E.
Kuhn, Tilmann
Mahapatra, Suddhassatta
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SFB 767 - TP B02: Ultraschnelle Quantenkontrolle einzelner Elektronen und Photonen in mesoskopischen Systemen
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Physical Review Letters. American Physical Society (APS). 2021, 126, 067402. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.126.067402
Zusammenfassung

Ultrafast transmission changes around the fundamental trion resonance are studied after exciting a p-shell exciton in a negatively charged II-VI quantum dot. The biexcitonic induced absorption reveals quantum beats between hot trion states at 133 GHz. While interband dephasing is dominated by relaxation of the P-shell hole within 390 fs, trionic coherence remains stored in the spin system for 85 ps due to Pauli blocking of the triplet electron. The complex spectro-temporal evolution of transmission is explained analytically by solving the Maxwell-Liouville equations. Pump and probe polarizations provide full control over amplitude and phase of the quantum beats.

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530 Physik
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Ultrafast phenomena, Nanophotonics, Quantum control, II-VI semiconductors, Quantum dots, Femtosecond laser spectroscopy, Ultrafast pump-probe spectroscopy, Quantum master equation
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ISO 690HENZLER, Philipp, Christian TRAUM, Matthias HOLTKEMPER, David NABBEN, Marcel ERBE, Doris E. REITER, Tilmann KUHN, Suddhassatta MAHAPATRA, Denis V. SELETSKIY, Alfred LEITENSTORFER, 2021. Femtosecond Transfer and Manipulation of Persistent Hot-Trion Coherence in a Single CdSe/ZnSe Quantum Dot. In: Physical Review Letters. American Physical Society (APS). 2021, 126, 067402. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.126.067402
BibTex
@article{Henzler2021Femto-52388,
  year={2021},
  doi={10.1103/PhysRevLett.126.067402},
  title={Femtosecond Transfer and Manipulation of Persistent Hot-Trion Coherence in a Single CdSe/ZnSe Quantum Dot},
  volume={126},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={Henzler, Philipp and Traum, Christian and Holtkemper, Matthias and Nabben, David and Erbe, Marcel and Reiter, Doris E. and Kuhn, Tilmann and Mahapatra, Suddhassatta and Seletskiy, Denis V. and Leitenstorfer, Alfred},
  note={Article Number: 067402}
}
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