Model of coherent optical spin manipulation through hot trion states in p-doped InAs/GaAs quantum dots

G. Slavcheva

Research output: Working paper

Abstract

A new generalised group-theoretical approach, based on master Maxwell-pseudospin equations, is proposed to explain recently observed enhanced circular dichroism in the excited state emission from p-doped quantum dot ensembles under resonant circularly polarised excitation into hot trion states, herein referred to as "spin-filtering effect". The theory agrees remarkably well with polarised time-resolved photoluminescence experiments, yielding largely unknown inter- and intra-shell spin relaxation time scales. This approach allows to predict optimum pulse parameters for control of spin dynamics, which will enable exploitation of the effect in all-optical spin-based quantum technologies.
Original languageEnglish
Number of pages12
Publication statusPublished - 29 Jan 2013

Keywords

  • cond-mat.mes-hall

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