Polarization properties of columnar quantum dots: Effects of aspect ratio and compositional contrast

P. Ridha; L.H. Li; M. Mexis; P.M. Smowton; J. Andrzejewski; G. S¿k; J. Misiewicz; E.P. O'Reilly; G. Patriarche; A. Fiore

doi:10.1109/JQE.2009.2030339

Polarization properties of columnar quantum dots: Effects of aspect ratio and compositional contrast

P. Ridha
, L.H. Li
, M. Mexis
, P.M. Smowton
, J. Andrzejewski
, G. S¿k
, J. Misiewicz
, E.P. O'Reilly
, G. Patriarche
, A. Fiore

Research output: Contribution to journal › Article › Academic › peer-review

20 Citations (Scopus)

Abstract

We report a systematic theoretical and experimental investigation of the polarization properties of columnar quantum dots (CQDs) with extremely large aspect ratio and high compositional contrast. A strong variation of the polarization of the dominant interband transitions as a function of the CQD composition and aspect ratio is predicted by the theory and observed experimentally. In optimized InAs CQDs grown on GaAs, dominant emission and lasing is obtained in the transverse-magnetic polarization, which shows the potential of this approach for polarization-independent amplifiers on GaAs.

Original language	English
Pages (from-to)	197-204
Journal	IEEE Journal of Quantum Electronics
Volume	46
Issue number	2
DOIs	https://doi.org/10.1109/JQE.2009.2030339
Publication status	Published - 2010

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10.1109/JQE.2009.2030339

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abstract = "We report a systematic theoretical and experimental investigation of the polarization properties of columnar quantum dots (CQDs) with extremely large aspect ratio and high compositional contrast. A strong variation of the polarization of the dominant interband transitions as a function of the CQD composition and aspect ratio is predicted by the theory and observed experimentally. In optimized InAs CQDs grown on GaAs, dominant emission and lasing is obtained in the transverse-magnetic polarization, which shows the potential of this approach for polarization-independent amplifiers on GaAs.",

author = "P. Ridha and L.H. Li and M. Mexis and P.M. Smowton and J. Andrzejewski and G. S¿k and J. Misiewicz and E.P. O'Reilly and G. Patriarche and A. Fiore",

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language = "English",

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T1 - Polarization properties of columnar quantum dots: Effects of aspect ratio and compositional contrast

AU - Ridha, P.

AU - Li, L.H.

AU - Mexis, M.

AU - Smowton, P.M.

AU - Andrzejewski, J.

AU - S¿k, G.

AU - Misiewicz, J.

AU - O'Reilly, E.P.

AU - Patriarche, G.

AU - Fiore, A.

PY - 2010

Y1 - 2010

N2 - We report a systematic theoretical and experimental investigation of the polarization properties of columnar quantum dots (CQDs) with extremely large aspect ratio and high compositional contrast. A strong variation of the polarization of the dominant interband transitions as a function of the CQD composition and aspect ratio is predicted by the theory and observed experimentally. In optimized InAs CQDs grown on GaAs, dominant emission and lasing is obtained in the transverse-magnetic polarization, which shows the potential of this approach for polarization-independent amplifiers on GaAs.

AB - We report a systematic theoretical and experimental investigation of the polarization properties of columnar quantum dots (CQDs) with extremely large aspect ratio and high compositional contrast. A strong variation of the polarization of the dominant interband transitions as a function of the CQD composition and aspect ratio is predicted by the theory and observed experimentally. In optimized InAs CQDs grown on GaAs, dominant emission and lasing is obtained in the transverse-magnetic polarization, which shows the potential of this approach for polarization-independent amplifiers on GaAs.

U2 - 10.1109/JQE.2009.2030339

DO - 10.1109/JQE.2009.2030339

M3 - Article

SN - 0018-9197

VL - 46

SP - 197

EP - 204

JO - IEEE Journal of Quantum Electronics

JF - IEEE Journal of Quantum Electronics

IS - 2

ER -

Polarization properties of columnar quantum dots: Effects of aspect ratio and compositional contrast

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