Pump dependence of the dynamics of quantum dot based waveguide absorbers

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dc.contributor.author Viktorov, Evgeny A.
dc.contributor.author Erneux, Thomas
dc.contributor.author Piwonski, Tomasz
dc.contributor.author Pulka, Jaroslaw
dc.contributor.author Huyet, Guillaume
dc.contributor.author Houlihan, John
dc.date.accessioned 2017-07-28T09:23:25Z
dc.date.available 2017-07-28T09:23:25Z
dc.date.issued 2012
dc.identifier.citation 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. doi: 10.1063/1.4729155 en
dc.identifier.volume 100
dc.identifier.issued 24
dc.identifier.startpage 1
dc.identifier.endpage 4
dc.identifier.issn 0003-6951
dc.identifier.issn 1077-3118
dc.identifier.uri http://hdl.handle.net/10468/4298
dc.identifier.doi 10.1063/1.4729155
dc.description.abstract The 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.sponsorship Science 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.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher AIP Publishing en
dc.relation.uri http://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/10.1063/1.4729155 en
dc.subject Saturable absorption en
dc.subject Lasers en
dc.subject Quantum dots en
dc.subject Multiphoton absorption en
dc.subject Excited states en
dc.subject Ground states en
dc.subject Materials properties en
dc.title Pump dependence of the dynamics of quantum dot based waveguide absorbers en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Tomasz Piwonski, Tyndall National Institute, University College Cork, Cork, Ireland +353-21-490-3000, E-mail: tomasz.piwonski@tyndall.ie en
dc.internal.availability Full text available en
dc.description.version Published Version en
dc.internal.wokid WOS:000305269200008
dc.contributor.funder Science Foundation Ireland
dc.contributor.funder Irish Research Council for Science, Engineering and Technology
dc.contributor.funder Higher Education Authority
dc.contributor.funder Fonds De La Recherche Scientifique - FNRS
dc.contributor.funder Air Force Office of Scientific Research
dc.description.status Peer reviewed en
dc.identifier.journaltitle Applied Physics Letters en
dc.internal.IRISemailaddress tomasz.piwonski@tyndall.ie en
dc.identifier.articleid 241108


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