Pump dependence of the dynamics of quantum dot based waveguide absorbers

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dc.contributor.authorViktorov, Evgeny A.
dc.contributor.authorErneux, Thomas
dc.contributor.authorPiwonski, Tomasz
dc.contributor.authorPulka, Jaroslaw
dc.contributor.authorHuyet, Guillaume
dc.contributor.authorHoulihan, John
dc.contributor.funderScience Foundation Ireland
dc.contributor.funderIrish Research Council for Science, Engineering and Technology
dc.contributor.funderHigher Education Authority
dc.contributor.funderFonds De La Recherche Scientifique - FNRS
dc.contributor.funderAir Force Office of Scientific Research
dc.date.accessioned2017-07-28T09:23:25Z
dc.date.available2017-07-28T09:23:25Z
dc.date.issued2012
dc.description.abstractThe nonlinear two stage recovery of quantum dot based reverse-biased waveguide absorbers is investigated experimentally and analytically as a function of the initial ground state occupation probability of the dot. The latter is controlled experimentally by the pump pulse power. The slow stage of the recovery is exponential and its basic timescale is independent of pump power. The fast stage of the recovery is a logistic function which we analyze in detail. The relative strength of slow to fast components is highlighted and the importance of higher order absorption processes at the highest pump level is demonstrated. (C) 2012 American Institute of Physics. (http://dx.doi.org/10.1063/1.4729155)en
dc.description.sponsorshipScience Foundation Ireland (SFI) (07/IN.1/I929); Irish Research Council for Science, Engineering and Technology (IRCSET); Tyndall National Access Programme; Higher Education Authority (under the PRTLI); Fond National de la Recherche Scientifique (Belgium); Air Force Office of Scientific Research (AFOSR) (FA8655-09-1-3068)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid241108
dc.identifier.citationViktorov, E. A., Erneux, T., Piwonski, T., Pulka, J., Huyet, G. and Houlihan, J. (2012) 'Pump dependence of the dynamics of quantum dot based waveguide absorbers', Applied Physics Letters, 100(24), pp. 241108. doi: 10.1063/1.4729155en
dc.identifier.doi10.1063/1.4729155
dc.identifier.endpage4
dc.identifier.issn0003-6951
dc.identifier.issn1077-3118
dc.identifier.issued24
dc.identifier.journaltitleApplied Physics Lettersen
dc.identifier.startpage1
dc.identifier.urihttps://hdl.handle.net/10468/4298
dc.identifier.volume100
dc.language.isoenen
dc.publisherAIP Publishingen
dc.relation.urihttp://aip.scitation.org/doi/abs/10.1063/1.4729155
dc.rights© 2012 American Institute of Physics.This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Viktorov, E. A., Erneux, T., Piwonski, T., Pulka, J., Huyet, G. and Houlihan, J. (2012) 'Pump dependence of the dynamics of quantum dot based waveguide absorbers', Applied Physics Letters, 100(24), pp. 241108 and may be found at http://aip.scitation.org/doi/abs/10.1063/1.4729155en
dc.subjectSaturable absorptionen
dc.subjectLasersen
dc.subjectQuantum dotsen
dc.subjectMultiphoton absorptionen
dc.subjectExcited statesen
dc.subjectGround statesen
dc.subjectMaterials propertiesen
dc.titlePump dependence of the dynamics of quantum dot based waveguide absorbersen
dc.typeArticle (peer-reviewed)en
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