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Dynamics of excitons in individual InAs quantum dots revealed in four-wave mixing spectroscopy
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dc.contributor.author | Mermillod, Q. | |
dc.contributor.author | Wigger, D. | |
dc.contributor.author | Delmonte, V. | |
dc.contributor.author | Reiter, D. E. | |
dc.contributor.author | Schneider, C. | |
dc.contributor.author | Kamp, M. | |
dc.contributor.author | Höfling, Sven | |
dc.contributor.author | Langbein, W. | |
dc.contributor.author | Kuhn, T. | |
dc.contributor.author | Nogues, G. | |
dc.contributor.author | Kasprzak, J. | |
dc.date.accessioned | 2017-04-01T23:38:43Z | |
dc.date.available | 2017-04-01T23:38:43Z | |
dc.date.issued | 2016-04-20 | |
dc.identifier | 241555151 | |
dc.identifier | a4f88fe3-0f00-46f2-a181-2f2e50dacfae | |
dc.identifier | 84964325612 | |
dc.identifier | 000374749100006 | |
dc.identifier.citation | Mermillod , Q , Wigger , D , Delmonte , V , Reiter , D E , Schneider , C , Kamp , M , Höfling , S , Langbein , W , Kuhn , T , Nogues , G & Kasprzak , J 2016 , ' Dynamics of excitons in individual InAs quantum dots revealed in four-wave mixing spectroscopy ' , Optica , vol. 3 , no. 4 , pp. 377-384 . https://doi.org/10.1364/OPTICA.3.000377 | en |
dc.identifier.issn | 2334-2536 | |
dc.identifier.uri | https://hdl.handle.net/10023/10573 | |
dc.description | We acknowledge the support by the ERC Starting Grant PICSEN, contract no. 306387. D.E.R. is grateful for financial support from the DAAD within the P.R.I.M.E. program. | en |
dc.description.abstract | A detailed understanding of the population and coherence dynamics in optically driven individual emitters in solids and their signatures in ultrafast nonlinear-optical signals is of prime importance for their applications in future quantum and optical technologies. In a combined experimental and theoretical study on exciton complexes in single semiconductor quantum dots we reveal a detailed picture of the dynamics employing three-beam polarization-resolved four-wave mixing (FWM) micro-spectroscopy. The oscillatory dynamics of the FWM signals in the exciton-biexciton system is governed by the fine-structure splitting and the biexciton binding energy in an excellent quantitative agreement between measurement and analytical description. The analysis of the excitation conditions exhibits a dependence of the dynamics on the specific choice of polarization configuration, pulse areas and temporal ordering of driving fields. The interplay between the transitions in the four-level exciton system leads to rich evolution of coherence and population. Using two-dimensional FWM spectroscopy we elucidate the exciton-biexciton coupling and identify neutral and charged exciton complexes in a single quantum dot. Our investigations thus clearly reveal that FWM spectroscopy is a powerful tool to characterize spectral and dynamical properties of single quantum structures. | |
dc.format.extent | 2057225 | |
dc.format.extent | 233279 | |
dc.language.iso | eng | |
dc.relation.ispartof | Optica | en |
dc.subject | QC Physics | en |
dc.subject | NDAS | en |
dc.subject.lcc | QC | en |
dc.title | Dynamics of excitons in individual InAs quantum dots revealed in four-wave mixing spectroscopy | en |
dc.type | Journal article | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. Condensed Matter Physics | en |
dc.identifier.doi | 10.1364/OPTICA.3.000377 | |
dc.description.status | Peer reviewed | en |
dc.date.embargoedUntil | 2017-04-01 |
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