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arXiv · 1301.7018

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

G. Slavcheva
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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.

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G. Slavcheva. 2013-01-29. Model of coherent optical spin manipulation through hot trion states in p-doped InAs/GaAs quantum dots. https://arxiv.org/abs/1301.7018

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