Excitation polarization dependence of optical coupled exciton states in a single coupled quantum dot molecule

Heedae Kim; Akihiro Murayama; Kwangseuk Kyhm; Jongsu Kim; Jindong Song; Koo Chul Je

doi:10.1088/1742-6596/906/1/012006

Excitation polarization dependence of optical coupled exciton states in a single coupled quantum dot molecule

Heedae Kim
, Akihiro Murayama
, Kwangseuk Kyhm
, Jongsu Kim
, Jindong Song
, Koo Chul Je

Department of Semiconductor Science and Technology

Hokkaido University
Pusan National University
Yeungnam University
Korea Institute of Science and Technology
Anyang University

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

The optically coupled exciton states have been investigated in terms of power dependent photoluminescence at the coupled GaAs quantum dots, which were laterally coupled along the [110] direction. The power dependent photoluminescence results are compared with two different excitation directions which are parallel to the direction of [110] and [110]. In coupled direction along the [110] direction, the power dependent redshift and coupled biexciton are observed, a fact that may be attributed to optical couplings via dipole-dipole interactions. Also, the redshift of excitons was manifested based on theoretical model.

Original language	English
Article number	012006
Journal	Journal of Physics: Conference Series
Volume	906
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/906/1/012006
State	Published - 2017.10.22
Event	20th International Conference on Electron Dynamics in Semiconductors, Optoelectronics and Nanostructures, EDISON 2017 - Buffalo, United States Duration: 2017.07.17 → 2017.07.21

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title = "Excitation polarization dependence of optical coupled exciton states in a single coupled quantum dot molecule",

abstract = "The optically coupled exciton states have been investigated in terms of power dependent photoluminescence at the coupled GaAs quantum dots, which were laterally coupled along the [110] direction. The power dependent photoluminescence results are compared with two different excitation directions which are parallel to the direction of [110] and [110]. In coupled direction along the [110] direction, the power dependent redshift and coupled biexciton are observed, a fact that may be attributed to optical couplings via dipole-dipole interactions. Also, the redshift of excitons was manifested based on theoretical model.",

author = "Heedae Kim and Akihiro Murayama and Kwangseuk Kyhm and Jongsu Kim and Jindong Song and \{Chul Je\}, Koo",

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T1 - Excitation polarization dependence of optical coupled exciton states in a single coupled quantum dot molecule

AU - Kim, Heedae

AU - Murayama, Akihiro

AU - Kyhm, Kwangseuk

AU - Kim, Jongsu

AU - Song, Jindong

AU - Chul Je, Koo

N1 - Publisher Copyright: © Published under licence by IOP Publishing Ltd.

PY - 2017/10/22

Y1 - 2017/10/22

N2 - The optically coupled exciton states have been investigated in terms of power dependent photoluminescence at the coupled GaAs quantum dots, which were laterally coupled along the [110] direction. The power dependent photoluminescence results are compared with two different excitation directions which are parallel to the direction of [110] and [110]. In coupled direction along the [110] direction, the power dependent redshift and coupled biexciton are observed, a fact that may be attributed to optical couplings via dipole-dipole interactions. Also, the redshift of excitons was manifested based on theoretical model.

AB - The optically coupled exciton states have been investigated in terms of power dependent photoluminescence at the coupled GaAs quantum dots, which were laterally coupled along the [110] direction. The power dependent photoluminescence results are compared with two different excitation directions which are parallel to the direction of [110] and [110]. In coupled direction along the [110] direction, the power dependent redshift and coupled biexciton are observed, a fact that may be attributed to optical couplings via dipole-dipole interactions. Also, the redshift of excitons was manifested based on theoretical model.

UR - https://www.scopus.com/pages/publications/85034446003

U2 - 10.1088/1742-6596/906/1/012006

DO - 10.1088/1742-6596/906/1/012006

M3 - Conference article

AN - SCOPUS:85034446003

SN - 1742-6588

VL - 906

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 1

M1 - 012006

T2 - 20th International Conference on Electron Dynamics in Semiconductors, Optoelectronics and Nanostructures, EDISON 2017

Y2 - 17 July 2017 through 21 July 2017

ER -

Excitation polarization dependence of optical coupled exciton states in a single coupled quantum dot molecule

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