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Observation of resonance fluorescence and the Mollow triplet from a coherently driven site-controlled quantum dot

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Date
16/12/2015
Author
Unsleber, Sebastian
Maier, Sebastian
McCutcheon, Dara P. S.
He, Yu-Ming
Dambach, Michael
Gschrey, Manuel
Gregersen, Niels
Mørk, Jesper
Reitzenstein, Stephan
Höfling, Sven
Schneider, Christian
Kamp, Martin
Keywords
Quantum-well
-wire and -dot devices
Nanostructure fabrication
Quantum optics
Spectroscopy
Semiconductors
QC Physics
NDAS
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Abstract
Resonant excitation of solid state quantum emitters has the potential to deterministically excite a localized exciton while ensuring maximally coherent emission. In this work, we demonstrate the coherent coupling of an exciton localized in a lithographically positioned, site-controlled semiconductor quantum dot to an external resonant laser field. For strong continuous-wave driving we observe the characteristic Mollow triplet and analyze the Rabi splitting and sideband widths as a function of driving strength and temperature. The sideband widths increase linearly with temperature and the square of the driving strength, which we explain via coupling of the exciton to longitudinal acoustic phonons. We also find an increase of the Rabi splitting with temperature, which indicates a temperature-induced delocalization of the excitonic wave function resulting in an increase of the oscillator strength. Finally, we demonstrate coherent control of the exciton excited state population via pulsed resonant excitation and observe a damping of the Rabi oscillations with increasing pulse area, which is consistent with our excitonx2013;photon coupling model. We believe that our work outlines the possibility to implement fully scalable platforms of solid state quantum emitters. Such scalability is one of the key prerequisites for more advanced, integrated nanophotonic quantum circuits.
Citation
Unsleber , S , Maier , S , McCutcheon , D P S , He , Y-M , Dambach , M , Gschrey , M , Gregersen , N , Mørk , J , Reitzenstein , S , Höfling , S , Schneider , C & Kamp , M 2015 , ' Observation of resonance fluorescence and the Mollow triplet from a coherently driven site-controlled quantum dot ' , Optica , vol. 2 , no. 12 , pp. 1072-1077 . https://doi.org/10.1364/OPTICA.2.001072
Publication
Optica
Status
Peer reviewed
DOI
https://doi.org/10.1364/OPTICA.2.001072
ISSN
2334-2536
Type
Journal article
Rights
© 2015 Optical Society of America. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at: https://dx.doi.org/10.1364/OPTICA.2.001072
Description
This work was funded by project SIQUTE (contract EXL02) of the European Metrology Research Programme (EMRP). The EMRP is jointly funded by the EMRP participating countries within EURAMET and the European Union. Support was provided from the Villum Foundation via the VKR Centre of Excellence NATEC.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/8185

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