Title data
Liu, Feng ; Martins, L. M. P. ; Brash, A. J. ; Barth, Andreas M. ; Quilter, John H. ; Axt, Vollrath Martin ; Skolnick, Maurice S. ; Fox, A. M.:
Ultrafast depopulation of a quantum dot by LA-phonon-assisted stimulated emission.
In: Physical Review B.
Vol. 93
(2016)
Issue 16
.
- 161407(R).
ISSN 0163-1829
DOI: https://doi.org/10.1103/PhysRevB.93.161407
Project information
Project financing: |
Deutsche Forschungsgemeinschaft Supported by the EPSRC (UK) programme Grant No. EP/J007544/1 |
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Abstract in another language
We demonstrate ultrafast incoherent depopulation of a quantum dot from above to below the transparency point using LA-phonon-assisted emission stimulated by a redshifted laser pulse. The QD is turned from a weakly vibronic system into a strongly vibronic one by laser driving which enables the phonon-assisted relaxation between the excitonic components of two dressed states. The depopulation is achieved within a laser pulse-width-limited time of 20 ps and exhibits a broad tuning range of a few meV. Our experimental results are well reproduced by path-integral calculations.
Further data
Item Type: | Article in a journal |
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Refereed: | Yes |
Keywords: | quantum dot; path-integrals; nonlinear optics; ultrafast dynamics; pure dephasing; phonons; decoherence; exciton depopulation; non-Markovian dynamics; memory effects; phonon-induced memory; multi-phonon processes; phonon-assisted off-resonant control; numerically complete real-time path integrals; quantum dissipative dynamics; exciton control; Spectroscopy; semiconductors; Ultrafast processes in condensed matter; including semiconductors |
Institutions of the University: | Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III > Chair Theoretical Physics III - Univ.-Prof. Dr. Martin Axt Faculties Faculties > Faculty of Mathematics, Physics und Computer Science Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III |
Result of work at the UBT: | Yes |
DDC Subjects: | 500 Science > 530 Physics |
Date Deposited: | 03 Nov 2017 11:16 |
Last Modified: | 03 Aug 2023 11:52 |
URI: | https://eref.uni-bayreuth.de/id/eprint/40289 |