dc.contributor |
Háskólinn í Reykjavík |
dc.contributor |
Reykjavik University |
dc.contributor.author |
Zajac, Joanna M. |
dc.contributor.author |
Sigurður Ingi Erlingsson |
dc.date.accessioned |
2018-12-04T10:58:46Z |
dc.date.available |
2018-12-04T10:58:46Z |
dc.date.issued |
2016-07-20 |
dc.identifier.citation |
Zajac, J. M., & Erlingsson, S. I. (2016). Temperature dependency of resonance fluorescence from InAs/GaAs quantum dots: Dephasing mechanisms. Physical Review B, 94(3), 035432. doi.org/10.1103/PhysRevB.94.035432 |
dc.identifier.issn |
2469-9950 |
dc.identifier.issn |
2469-9969 (eISSN) |
dc.identifier.uri |
https://hdl.handle.net/20.500.11815/937 |
dc.description.abstract |
We report a study on temperature-dependent resonant fluorescence from InAs/GaAs quantum dots. We combined spectral and temporal measurements in order to identify sources of dephasing. In the spectral domain, we observed temperature-dependent broadening of the zero-phonon line as 0.3μeV/K, and a temperature-dependent phonon broadband. Time-resolved autocorrelation measurements revealed temperature-dependent spin pumping times between T1,s=6 ns (4 K) and 0.5 ns (15 K). These results are compared against theoretical modeling with a master equation for a four-level system coupled to phonon and spin baths. We explained the results by phonon-mediated hole-spin scattering between two excited states, with the piezophonons as a dominant mechanism. |
dc.format.extent |
035432/1-035432/7 |
dc.language.iso |
en |
dc.publisher |
American Physical Society (APS) |
dc.relation.ispartofseries |
Physical Review B;94(3) |
dc.rights |
info:eu-repo/semantics/openAccess |
dc.subject |
Fluorescence |
dc.subject |
Thermal properties |
dc.subject |
Interferometry |
dc.subject |
Flúrljómun |
dc.subject |
Varmafræði |
dc.subject |
Mælitæki |
dc.subject |
Quantom dots |
dc.title |
Temperature dependency of resonance fluorescence from InAs/GaAs quantum dots: Dephasing mechanisms |
dc.type |
info:eu-repo/semantics/article |
dcterms.license |
Green Published open access are published articles available without charge from a repository. |
dc.description.version |
Peer reviewed |
dc.identifier.journal |
Physical Review B |
dc.identifier.doi |
10.1103/PhysRevB.94.035432 |
dc.contributor.school |
Tækni- og verkfræðideild (HR) |
dc.contributor.school |
School of Science and Engineering (RU) |