Cascaded exciton emission of an individual strain-induced quantum dot

F. J.R. Schülein; A. Laucht; J. Riikonen; M. Mattila; M. Sopanen; H. Lipsanen; J. J. Finley; A. Wixforth; H. J. Krenner

doi:10.1063/1.3216807

Cascaded exciton emission of an individual strain-induced quantum dot

F. J.R. Schülein
, A. Laucht
, J. Riikonen
, M. Mattila
, M. Sopanen
, H. Lipsanen
, J. J. Finley
, A. Wixforth
, H. J. Krenner

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

7 Scopus citations

Abstract

Single strain-induced quantum dots are isolated for optical experiments by selective removal of the inducing InP islands from the sample surface. Unpolarized emission of single exciton, biexciton, and triexciton transitions are identified by power-dependent photoluminescence spectroscopy. Employing time-resolved experiments performed at different excitation powers, we find a pronounced shift of the rise and decay times of these different transitions as expected from cascaded single photon emissions. Good agreement is found for a rate equation model for a three step cascade.

Original language	English
Article number	083122
Journal	Applied Physics Letters
Volume	95
Issue number	8
DOIs	https://doi.org/10.1063/1.3216807
State	Published - 2009

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title = "Cascaded exciton emission of an individual strain-induced quantum dot",

abstract = "Single strain-induced quantum dots are isolated for optical experiments by selective removal of the inducing InP islands from the sample surface. Unpolarized emission of single exciton, biexciton, and triexciton transitions are identified by power-dependent photoluminescence spectroscopy. Employing time-resolved experiments performed at different excitation powers, we find a pronounced shift of the rise and decay times of these different transitions as expected from cascaded single photon emissions. Good agreement is found for a rate equation model for a three step cascade.",

author = "Sch{\"u}lein, \{F. J.R.\} and A. Laucht and J. Riikonen and M. Mattila and M. Sopanen and H. Lipsanen and Finley, \{J. J.\} and A. Wixforth and Krenner, \{H. J.\}",

year = "2009",

doi = "10.1063/1.3216807",

language = "English",

volume = "95",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Cascaded exciton emission of an individual strain-induced quantum dot

AU - Schülein, F. J.R.

AU - Laucht, A.

AU - Riikonen, J.

AU - Mattila, M.

AU - Sopanen, M.

AU - Lipsanen, H.

AU - Finley, J. J.

AU - Wixforth, A.

AU - Krenner, H. J.

PY - 2009

Y1 - 2009

N2 - Single strain-induced quantum dots are isolated for optical experiments by selective removal of the inducing InP islands from the sample surface. Unpolarized emission of single exciton, biexciton, and triexciton transitions are identified by power-dependent photoluminescence spectroscopy. Employing time-resolved experiments performed at different excitation powers, we find a pronounced shift of the rise and decay times of these different transitions as expected from cascaded single photon emissions. Good agreement is found for a rate equation model for a three step cascade.

AB - Single strain-induced quantum dots are isolated for optical experiments by selective removal of the inducing InP islands from the sample surface. Unpolarized emission of single exciton, biexciton, and triexciton transitions are identified by power-dependent photoluminescence spectroscopy. Employing time-resolved experiments performed at different excitation powers, we find a pronounced shift of the rise and decay times of these different transitions as expected from cascaded single photon emissions. Good agreement is found for a rate equation model for a three step cascade.

UR - https://www.scopus.com/pages/publications/69549103253

U2 - 10.1063/1.3216807

DO - 10.1063/1.3216807

M3 - Article

AN - SCOPUS:69549103253

SN - 0003-6951

VL - 95

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 8

M1 - 083122

ER -

Cascaded exciton emission of an individual strain-induced quantum dot

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