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Giant optical anisotropy in a single InAs quantum dot in a very dilute quantum-dot ensemble

I. Favero·Guillaume Cassabois·A. Jankovic·R. Ferreira·D. Darson·C. Voisin·C. Delalande·Ph. Roussignol·A. Badolato·P. M. Petroff·J. M. Gerard
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Abstract

We present the experimental evidence of giant optical anisotropy in single InAs quantum dots. Polarization-resolved photoluminescence spectroscopy reveals a linear polarization ratio with huge fluctuations, from one quantum dot to another, in sign and in magnitude with absolute values up to 82%. Systematic measurements on hundreds of quantum dots coming from two different laboratories demonstrate that the giant optical anisotropy is an intrinsic feature of dilute quantum-dot arrays.

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I. Favero, Guillaume Cassabois, A. Jankovic, R. Ferreira, D. Darson, C. Voisin, C. Delalande, Ph. Roussignol, A. Badolato, P. M. Petroff, J. M. Gerard. 2004-11-18. Giant optical anisotropy in a single InAs quantum dot in a very dilute quantum-dot ensemble. https://doi.org/10.1063/1.1854733

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