Orientation dependent emission properties of columnar quantum dash laser structures

S. Hein; P. Podemski; G. Sek; J. Misiewicz; P. Ridha; A. Fiore; G. Patriarche; S. Höfling; A. Forchel

doi:10.1063/1.3156029

Orientation dependent emission properties of columnar quantum dash laser structures

S. Hein, P. Podemski, G. Sek, J. Misiewicz, P. Ridha, A. Fiore, G. Patriarche, S. Höfling, A. Forchel

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Abstract

InAs columnar quantum dash (CQDash) structures on (100) InP have been realized by gas source molecular beam epitaxy for stacking numbers of up to 24. Laser devices show low threshold current densities between 0.73 and 3.5 kA/ cm2, dependent on the CQDash orientation within the cavity. Photoluminescence and electroluminescence measurements confirm a strong relationship between the polarization degree of the emission and the orientation of the CQDashes. Eventually, the polarization of the CQDash emission could be changed from predominantly transverse electric to transverse magnetic by simply altering the dash alignment relative to the light propagation axis.

Original language	English
Article number	241113
Pages (from-to)	241113-1/3
Journal	Applied Physics Letters
Volume	94
Issue number	24
DOIs	https://doi.org/10.1063/1.3156029
Publication status	Published - 2009

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title = "Orientation dependent emission properties of columnar quantum dash laser structures",

abstract = "InAs columnar quantum dash (CQDash) structures on (100) InP have been realized by gas source molecular beam epitaxy for stacking numbers of up to 24. Laser devices show low threshold current densities between 0.73 and 3.5 kA/ cm2, dependent on the CQDash orientation within the cavity. Photoluminescence and electroluminescence measurements confirm a strong relationship between the polarization degree of the emission and the orientation of the CQDashes. Eventually, the polarization of the CQDash emission could be changed from predominantly transverse electric to transverse magnetic by simply altering the dash alignment relative to the light propagation axis.",

author = "S. Hein and P. Podemski and G. Sek and J. Misiewicz and P. Ridha and A. Fiore and G. Patriarche and S. H{\"o}fling and A. Forchel",

year = "2009",

doi = "10.1063/1.3156029",

language = "English",

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pages = "241113--1/3",

journal = "Applied Physics Letters",

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publisher = "American Institute of Physics",

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T1 - Orientation dependent emission properties of columnar quantum dash laser structures

AU - Hein, S.

AU - Podemski, P.

AU - Sek, G.

AU - Misiewicz, J.

AU - Ridha, P.

AU - Fiore, A.

AU - Patriarche, G.

AU - Höfling, S.

AU - Forchel, A.

PY - 2009

Y1 - 2009

N2 - InAs columnar quantum dash (CQDash) structures on (100) InP have been realized by gas source molecular beam epitaxy for stacking numbers of up to 24. Laser devices show low threshold current densities between 0.73 and 3.5 kA/ cm2, dependent on the CQDash orientation within the cavity. Photoluminescence and electroluminescence measurements confirm a strong relationship between the polarization degree of the emission and the orientation of the CQDashes. Eventually, the polarization of the CQDash emission could be changed from predominantly transverse electric to transverse magnetic by simply altering the dash alignment relative to the light propagation axis.

AB - InAs columnar quantum dash (CQDash) structures on (100) InP have been realized by gas source molecular beam epitaxy for stacking numbers of up to 24. Laser devices show low threshold current densities between 0.73 and 3.5 kA/ cm2, dependent on the CQDash orientation within the cavity. Photoluminescence and electroluminescence measurements confirm a strong relationship between the polarization degree of the emission and the orientation of the CQDashes. Eventually, the polarization of the CQDash emission could be changed from predominantly transverse electric to transverse magnetic by simply altering the dash alignment relative to the light propagation axis.

U2 - 10.1063/1.3156029

DO - 10.1063/1.3156029

M3 - Article

SN - 0003-6951

VL - 94

SP - 241113-1/3

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 24

M1 - 241113

ER -

Orientation dependent emission properties of columnar quantum dash laser structures

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