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

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

2004-11-18

arxiv.org/abs/cond-mat/0411484v1

Physics

Condensed Matter

Other Condensed Matter

submitted to Applied Physics Letters

Scientific paper

10.1063/1.1854733

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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