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

Authors
  • Favero, I.
  • Cassabois, Guillaume
  • Jankovic, A.
  • Ferreira, R.
  • Darson, D.
  • Voisin, C.
  • Delalande, C.
  • Roussignol, P.
  • Badolato, A.
  • Badolato, Antonio
  • Petroff, Pm
  • Gérard, Jean-Michel
Publication Date
Jan 01, 2005
Source
HAL-CEA
Keywords
License
Unknown
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Abstract

We present 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. (C) 2005 American Institute of Physics.

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