---
_id: '4046'
abstract:
- lang: eng
text: "We demonstrate by spin quantum beat spectroscopy that in undoped symmetric
(110)-oriented GaAs/AlGaAs\r\nsingle quantum wells, even a symmetric spatial envelope
wave function gives rise to an asymmetric in-plane\r\nelectron Land´e g-factor.
The anisotropy is neither a direct consequence of the asymmetric in-plane Dresselhaus\r\nsplitting
nor a direct consequence of the asymmetric Zeeman splitting of the hole bands,
but rather it is a pure\r\nhigher-order effect that exists as well for diamond-type
lattices. The measurements for various well widths are\r\nvery well described
within 14 × 14 band k·p theory and illustrate that the electron spin is an excellent
meter\r\nvariable for mapping out the internal—otherwise hidden—symmetries in
two-dimensional systems. Fourth-order\r\nperturbation theory yields an analytical
expression for the strength of the g-factor anisotropy, providing a\r\nqualitative
understanding of the observed effects."
article_type: original
author:
- first_name: J.
full_name: Hübner, J.
last_name: Hübner
- first_name: S.
full_name: Kunz, S.
last_name: Kunz
- first_name: S.
full_name: Oertel, S.
last_name: Oertel
- first_name: D.
full_name: Schuh, D.
last_name: Schuh
- first_name: M.
full_name: Pochwała, M.
last_name: Pochwała
- first_name: H. T.
full_name: Duc, H. T.
last_name: Duc
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: M.
full_name: Oestreich, M.
last_name: Oestreich
citation:
ama: Hübner J, Kunz S, Oertel S, et al. Electron g-factor anisotropy in symmetric
(110)-oriented GaAs quantum wells. Physical Review B. 2011;84(4):041301(R).
doi:10.1103/physrevb.84.041301
apa: Hübner, J., Kunz, S., Oertel, S., Schuh, D., Pochwała, M., Duc, H. T., Förstner,
J., Meier, T., & Oestreich, M. (2011). Electron g-factor anisotropy in symmetric
(110)-oriented GaAs quantum wells. Physical Review B, 84(4), 041301(R).
https://doi.org/10.1103/physrevb.84.041301
bibtex: '@article{Hübner_Kunz_Oertel_Schuh_Pochwała_Duc_Förstner_Meier_Oestreich_2011,
title={Electron g-factor anisotropy in symmetric (110)-oriented GaAs quantum wells},
volume={84}, DOI={10.1103/physrevb.84.041301},
number={4}, journal={Physical Review B}, publisher={American Physical Society
(APS)}, author={Hübner, J. and Kunz, S. and Oertel, S. and Schuh, D. and Pochwała,
M. and Duc, H. T. and Förstner, Jens and Meier, Torsten and Oestreich, M.}, year={2011},
pages={041301(R)} }'
chicago: 'Hübner, J., S. Kunz, S. Oertel, D. Schuh, M. Pochwała, H. T. Duc, Jens
Förstner, Torsten Meier, and M. Oestreich. “Electron G-Factor Anisotropy in Symmetric
(110)-Oriented GaAs Quantum Wells.” Physical Review B 84, no. 4 (2011):
041301(R). https://doi.org/10.1103/physrevb.84.041301.'
ieee: 'J. Hübner et al., “Electron g-factor anisotropy in symmetric (110)-oriented
GaAs quantum wells,” Physical Review B, vol. 84, no. 4, p. 041301(R), 2011,
doi: 10.1103/physrevb.84.041301.'
mla: Hübner, J., et al. “Electron G-Factor Anisotropy in Symmetric (110)-Oriented
GaAs Quantum Wells.” Physical Review B, vol. 84, no. 4, American Physical
Society (APS), 2011, p. 041301(R), doi:10.1103/physrevb.84.041301.
short: J. Hübner, S. Kunz, S. Oertel, D. Schuh, M. Pochwała, H.T. Duc, J. Förstner,
T. Meier, M. Oestreich, Physical Review B 84 (2011) 041301(R).
date_created: 2018-08-22T10:20:23Z
date_updated: 2025-12-16T16:19:20Z
ddc:
- '530'
department:
- _id: '15'
- _id: '293'
- _id: '170'
- _id: '230'
- _id: '35'
- _id: '34'
- _id: '61'
doi: 10.1103/physrevb.84.041301
file:
- access_level: open_access
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-22T10:22:40Z
date_updated: 2018-09-04T19:28:55Z
file_id: '4047'
file_name: 2011 Hübner,Kunz,Örtel,Schuh,Pochwala,Duc,Förstner,Meier,Östreich_Electron
g -factor anisotropy in symmetric (110)-oriented GaAs quantum wells.pdf
file_size: 339595
relation: main_file
file_date_updated: 2018-09-04T19:28:55Z
has_accepted_license: '1'
intvolume: ' 84'
issue: '4'
keyword:
- tet_topic_qw
language:
- iso: eng
oa: '1'
page: 041301(R)
publication: Physical Review B
publication_identifier:
issn:
- 1098-0121
- 1550-235X
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Electron g-factor anisotropy in symmetric (110)-oriented GaAs quantum wells
type: journal_article
urn: '40467'
user_id: '16199'
volume: 84
year: '2011'
...
---
_id: '4129'
abstract:
- lang: eng
text: We study a single quantum dot molecule doped with one electron in the presence
of electron-phonon coupling. Both diagonal and off-diagonal interactions representing
real and virtual processes with acoustic phonons via deformation potential and
piezoelectric coupling are taken into account. We employ a non-perturbative quantum
kinetic theory and show that the phonon-mediated relaxation is dominated by an
electron tunneling on a picosecond time scale.A dependence of the relaxation on
the temperature and the strength of the tunneling coupling is analyzed.
article_number: '012035'
article_type: original
author:
- first_name: Anna
full_name: Grodecka-Grad, Anna
last_name: Grodecka-Grad
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: 'Grodecka-Grad A, Förstner J. Phonon-mediated relaxation in doped quantum dot
molecules. Journal of Physics: Conference Series. 2010;245. doi:10.1088/1742-6596/245/1/012035'
apa: 'Grodecka-Grad, A., & Förstner, J. (2010). Phonon-mediated relaxation in
doped quantum dot molecules. Journal of Physics: Conference Series, 245.
https://doi.org/10.1088/1742-6596/245/1/012035'
bibtex: '@article{Grodecka-Grad_Förstner_2010, title={Phonon-mediated relaxation
in doped quantum dot molecules}, volume={245}, DOI={10.1088/1742-6596/245/1/012035},
number={012035}, journal={Journal of Physics: Conference Series}, publisher={IOP
Publishing}, author={Grodecka-Grad, Anna and Förstner, Jens}, year={2010} }'
chicago: 'Grodecka-Grad, Anna, and Jens Förstner. “Phonon-Mediated Relaxation in
Doped Quantum Dot Molecules.” Journal of Physics: Conference Series 245
(2010). https://doi.org/10.1088/1742-6596/245/1/012035.'
ieee: 'A. Grodecka-Grad and J. Förstner, “Phonon-mediated relaxation in doped quantum
dot molecules,” Journal of Physics: Conference Series, vol. 245, 2010.'
mla: 'Grodecka-Grad, Anna, and Jens Förstner. “Phonon-Mediated Relaxation in Doped
Quantum Dot Molecules.” Journal of Physics: Conference Series, vol. 245,
012035, IOP Publishing, 2010, doi:10.1088/1742-6596/245/1/012035.'
short: 'A. Grodecka-Grad, J. Förstner, Journal of Physics: Conference Series 245
(2010).'
date_created: 2018-08-27T10:33:04Z
date_updated: 2022-01-06T07:00:22Z
ddc:
- '530'
department:
- _id: '15'
doi: 10.1088/1742-6596/245/1/012035
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-27T10:34:26Z
date_updated: 2018-08-27T10:34:26Z
file_id: '4130'
file_name: 2010 Grodecka-Grad,Förstner_Phonon-mediated relaxation in doped quantum
dot molecules.pdf
file_size: 896613
relation: main_file
success: 1
file_date_updated: 2018-08-27T10:34:26Z
has_accepted_license: '1'
intvolume: ' 245'
keyword:
- tet_topic_qd
language:
- iso: eng
publication: 'Journal of Physics: Conference Series'
publication_identifier:
issn:
- 1742-6596
publication_status: published
publisher: IOP Publishing
status: public
title: Phonon-mediated relaxation in doped quantum dot molecules
type: journal_article
user_id: '55706'
volume: 245
year: '2010'
...
---
_id: '4174'
abstract:
- lang: eng
text: "A quantum dot molecule doped with a single electron in the presence of diagonal
and off-diagonal carrierphonon\r\ncouplings is studied by means of a nonperturbative
quantum kinetic theory. The interaction with acoustic phonons by deformation potential
and piezoelectric coupling is taken into account. We show that the phonon-mediated
relaxation is fast on a picosecond time scale and is dominated by the usually
neglected off-diagonal coupling to the lattice degrees of freedom leading to phonon-assisted
electron tunneling. We show that in the parameter regime of current electrical
and optical experiments, the microscopic non-Markovian theory has to be employed."
article_number: '115305'
article_type: original
author:
- first_name: A.
full_name: Grodecka-Grad, A.
last_name: Grodecka-Grad
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Grodecka-Grad A, Förstner J. Theory of phonon-mediated relaxation in doped
quantum dot molecules. Physical Review B. 2010;81(11). doi:10.1103/physrevb.81.115305
apa: Grodecka-Grad, A., & Förstner, J. (2010). Theory of phonon-mediated relaxation
in doped quantum dot molecules. Physical Review B, 81(11). https://doi.org/10.1103/physrevb.81.115305
bibtex: '@article{Grodecka-Grad_Förstner_2010, title={Theory of phonon-mediated
relaxation in doped quantum dot molecules}, volume={81}, DOI={10.1103/physrevb.81.115305},
number={11115305}, journal={Physical Review B}, publisher={American Physical Society
(APS)}, author={Grodecka-Grad, A. and Förstner, Jens}, year={2010} }'
chicago: Grodecka-Grad, A., and Jens Förstner. “Theory of Phonon-Mediated Relaxation
in Doped Quantum Dot Molecules.” Physical Review B 81, no. 11 (2010). https://doi.org/10.1103/physrevb.81.115305.
ieee: A. Grodecka-Grad and J. Förstner, “Theory of phonon-mediated relaxation in
doped quantum dot molecules,” Physical Review B, vol. 81, no. 11, 2010.
mla: Grodecka-Grad, A., and Jens Förstner. “Theory of Phonon-Mediated Relaxation
in Doped Quantum Dot Molecules.” Physical Review B, vol. 81, no. 11, 115305,
American Physical Society (APS), 2010, doi:10.1103/physrevb.81.115305.
short: A. Grodecka-Grad, J. Förstner, Physical Review B 81 (2010).
date_created: 2018-08-28T08:57:24Z
date_updated: 2022-01-06T07:00:29Z
ddc:
- '530'
department:
- _id: '15'
doi: 10.1103/physrevb.81.115305
file:
- access_level: open_access
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-28T08:58:21Z
date_updated: 2018-09-04T19:58:41Z
file_id: '4175'
file_name: 2010 Grodecka-Grad,Förstner_Theory of phonon-mediated relaxation in doped
quantum dot molecules.pdf
file_size: 680408
relation: main_file
file_date_updated: 2018-09-04T19:58:41Z
has_accepted_license: '1'
intvolume: ' 81'
issue: '11'
keyword:
- tet_topic_qd
language:
- iso: eng
oa: '1'
publication: Physical Review B
publication_identifier:
issn:
- 1098-0121
- 1550-235X
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Theory of phonon-mediated relaxation in doped quantum dot molecules
type: journal_article
urn: '41740'
user_id: '158'
volume: 81
year: '2010'
...
---
_id: '4127'
abstract:
- lang: eng
text: "The dynamics of charge and spin injection currents excited by circularly
polarized, one-color laser beams in\r\nsemiconductor quantum wells is analyzed.
Our microscopic approach is based on a 14x14 k · p band-structure\r\ntheory in
combination with multisubband semiconductor Bloch equations which allows a detailed
analysis of\r\nthe photogenerated carrier distributions and coherences in k space.
Charge and spin injection currents are\r\nnumerically calculated for [110]- and
[001]-grown GaAs quantum wells including dc population contributions\r\nand ac
contributions that arise from intersubband coherences. The dependencies of the
injection currents on the\r\nexcitation conditions, in particular, the photon
energy are computed and discussed."
article_number: '115316'
article_type: original
author:
- first_name: Huynh Thanh
full_name: Duc, Huynh Thanh
last_name: Duc
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
citation:
ama: Duc HT, Förstner J, Meier T. Microscopic analysis of charge and spin photocurrents
injected by circularly polarized one-color laser pulses in GaAs quantum wells.
Physical Review B. 2010;82(11). doi:10.1103/physrevb.82.115316
apa: Duc, H. T., Förstner, J., & Meier, T. (2010). Microscopic analysis of charge
and spin photocurrents injected by circularly polarized one-color laser pulses
in GaAs quantum wells. Physical Review B, 82(11), Article 115316.
https://doi.org/10.1103/physrevb.82.115316
bibtex: '@article{Duc_Förstner_Meier_2010, title={Microscopic analysis of charge
and spin photocurrents injected by circularly polarized one-color laser pulses
in GaAs quantum wells}, volume={82}, DOI={10.1103/physrevb.82.115316},
number={11115316}, journal={Physical Review B}, publisher={American Physical Society
(APS)}, author={Duc, Huynh Thanh and Förstner, Jens and Meier, Torsten}, year={2010}
}'
chicago: Duc, Huynh Thanh, Jens Förstner, and Torsten Meier. “Microscopic Analysis
of Charge and Spin Photocurrents Injected by Circularly Polarized One-Color Laser
Pulses in GaAs Quantum Wells.” Physical Review B 82, no. 11 (2010). https://doi.org/10.1103/physrevb.82.115316.
ieee: 'H. T. Duc, J. Förstner, and T. Meier, “Microscopic analysis of charge and
spin photocurrents injected by circularly polarized one-color laser pulses in
GaAs quantum wells,” Physical Review B, vol. 82, no. 11, Art. no. 115316,
2010, doi: 10.1103/physrevb.82.115316.'
mla: Duc, Huynh Thanh, et al. “Microscopic Analysis of Charge and Spin Photocurrents
Injected by Circularly Polarized One-Color Laser Pulses in GaAs Quantum Wells.”
Physical Review B, vol. 82, no. 11, 115316, American Physical Society (APS),
2010, doi:10.1103/physrevb.82.115316.
short: H.T. Duc, J. Förstner, T. Meier, Physical Review B 82 (2010).
date_created: 2018-08-27T10:25:36Z
date_updated: 2023-04-19T11:11:47Z
ddc:
- '530'
department:
- _id: '15'
- _id: '230'
- _id: '293'
- _id: '170'
doi: 10.1103/physrevb.82.115316
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-27T10:27:00Z
date_updated: 2018-08-27T10:27:00Z
file_id: '4128'
file_name: 2010 Duc,Förstner,Meier_Microscopic analysis of charge and spin photocurrents
injected by circularly polarized one-color laser pulses in GaAs quantum wells.pdf
file_size: 639662
relation: main_file
success: 1
file_date_updated: 2018-08-27T10:27:00Z
has_accepted_license: '1'
intvolume: ' 82'
issue: '11'
keyword:
- tet_topic_qw
language:
- iso: eng
publication: Physical Review B
publication_identifier:
issn:
- 1098-0121
- 1550-235X
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Microscopic analysis of charge and spin photocurrents injected by circularly
polarized one-color laser pulses in GaAs quantum wells
type: journal_article
user_id: '49063'
volume: 82
year: '2010'
...
---
_id: '4176'
abstract:
- lang: eng
text: A microscopic theory that describes injection currents in GaAs quantum wells
is presented. 14 × 14 band k.p theory is used to compute the band structure including
anisotropy and spin-orbit interaction. Transient injection currents are obtained
via numerical solutions of the semiconductor Bloch equations. Depending on the
growth direction of the considered quantum well system and the propagation and
polarization directions of the incident light beam, it is possible to generate
charge and/or spin photocurrents on ultrashort time scales. The dependence of
the photocurrents on the excitation conditions is computed and discussed.
author:
- first_name: Huynh Thanh
full_name: Duc, Huynh Thanh
last_name: Duc
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
citation:
ama: 'Duc HT, Förstner J, Meier T. Microscopic theoretical analysis of optically
generated injection currents in semiconductor quantum wells. In: Song J-J, Tsen
K-T, Betz M, Elezzabi AY, eds. Ultrafast Phenomena in Semiconductors and Nanostructure
Materials XIV. Vol 7600. SPIE Proceedings. SPIE; 2010:76000S-76000S - 9. doi:10.1117/12.840388'
apa: Duc, H. T., Förstner, J., & Meier, T. (2010). Microscopic theoretical analysis
of optically generated injection currents in semiconductor quantum wells. In J.-J.
Song, K.-T. Tsen, M. Betz, & A. Y. Elezzabi (Eds.), Ultrafast Phenomena
in Semiconductors and Nanostructure Materials XIV (Vol. 7600, pp. 76000S-76000S
– 9). SPIE. https://doi.org/10.1117/12.840388
bibtex: '@inproceedings{Duc_Förstner_Meier_2010, series={SPIE Proceedings}, title={Microscopic
theoretical analysis of optically generated injection currents in semiconductor
quantum wells}, volume={7600}, DOI={10.1117/12.840388},
booktitle={Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIV},
publisher={SPIE}, author={Duc, Huynh Thanh and Förstner, Jens and Meier, Torsten},
editor={Song, Jin-Joo and Tsen, Kong-Thon and Betz, Markus and Elezzabi, Abdulhakem
Y.}, year={2010}, pages={76000S-76000S–9}, collection={SPIE Proceedings} }'
chicago: Duc, Huynh Thanh, Jens Förstner, and Torsten Meier. “Microscopic Theoretical
Analysis of Optically Generated Injection Currents in Semiconductor Quantum Wells.”
In Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIV,
edited by Jin-Joo Song, Kong-Thon Tsen, Markus Betz, and Abdulhakem Y. Elezzabi,
7600:76000S-76000S – 9. SPIE Proceedings. SPIE, 2010. https://doi.org/10.1117/12.840388.
ieee: 'H. T. Duc, J. Förstner, and T. Meier, “Microscopic theoretical analysis of
optically generated injection currents in semiconductor quantum wells,” in Ultrafast
Phenomena in Semiconductors and Nanostructure Materials XIV, 2010, vol. 7600,
pp. 76000S-76000S–9, doi: 10.1117/12.840388.'
mla: Duc, Huynh Thanh, et al. “Microscopic Theoretical Analysis of Optically Generated
Injection Currents in Semiconductor Quantum Wells.” Ultrafast Phenomena in
Semiconductors and Nanostructure Materials XIV, edited by Jin-Joo Song et
al., vol. 7600, SPIE, 2010, pp. 76000S-76000S – 9, doi:10.1117/12.840388.
short: 'H.T. Duc, J. Förstner, T. Meier, in: J.-J. Song, K.-T. Tsen, M. Betz, A.Y.
Elezzabi (Eds.), Ultrafast Phenomena in Semiconductors and Nanostructure Materials
XIV, SPIE, 2010, pp. 76000S-76000S–9.'
date_created: 2018-08-28T09:00:53Z
date_updated: 2023-04-19T11:07:47Z
department:
- _id: '15'
- _id: '293'
- _id: '170'
- _id: '230'
doi: 10.1117/12.840388
editor:
- first_name: Jin-Joo
full_name: Song, Jin-Joo
last_name: Song
- first_name: Kong-Thon
full_name: Tsen, Kong-Thon
last_name: Tsen
- first_name: Markus
full_name: Betz, Markus
last_name: Betz
- first_name: Abdulhakem Y.
full_name: Elezzabi, Abdulhakem Y.
last_name: Elezzabi
intvolume: ' 7600'
keyword:
- tet_topic_qw
language:
- iso: eng
page: 76000S-76000S-9
publication: Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIV
publication_status: published
publisher: SPIE
series_title: SPIE Proceedings
status: public
title: Microscopic theoretical analysis of optically generated injection currents
in semiconductor quantum wells
type: conference
user_id: '49063'
volume: 7600
year: '2010'
...
---
_id: '4177'
abstract:
- lang: eng
text: "Excitonic spectra of weakly disordered semiconductor heterostructures are
simulated on the basis of a\r\none-dimensional tight-binding model. The influence
of the length scale of weak disorder in quantum wells on\r\nthe redshift of the
excitonic peak and its linewidth is studied. By calculating two-dimensional Fouriertransform\r\nspectra
we are able to determine the contribution of disorder to inhomogeneous and also
to homogeneous\r\nbroadenings separately. This disorder-induced dephasing is related
to a Fano-type coupling and leads\r\nto contributions to the homogeneous linewidth
that depends on energy within the inhomogeneously broadened\r\nline. The model
includes heavy- and light-hole excitons and yields smaller inhomogeneous broadening
for the\r\nlight-hole exciton if compared to the heavy-hole exciton, which agrees
qualitatively with the experiment."
article_number: '075307'
article_type: original
author:
- first_name: I.
full_name: Kuznetsova, I.
last_name: Kuznetsova
- first_name: N.
full_name: Gőgh, N.
last_name: Gőgh
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: S. T.
full_name: Cundiff, S. T.
last_name: Cundiff
- first_name: I.
full_name: Varga, I.
last_name: Varga
- first_name: P.
full_name: Thomas, P.
last_name: Thomas
citation:
ama: Kuznetsova I, Gőgh N, Förstner J, et al. Modeling excitonic line shapes in
weakly disordered semiconductor nanostructures. Physical Review B. 2010;81(7).
doi:10.1103/physrevb.81.075307
apa: Kuznetsova, I., Gőgh, N., Förstner, J., Meier, T., Cundiff, S. T., Varga, I.,
& Thomas, P. (2010). Modeling excitonic line shapes in weakly disordered semiconductor
nanostructures. Physical Review B, 81(7), Article 075307. https://doi.org/10.1103/physrevb.81.075307
bibtex: '@article{Kuznetsova_Gőgh_Förstner_Meier_Cundiff_Varga_Thomas_2010, title={Modeling
excitonic line shapes in weakly disordered semiconductor nanostructures}, volume={81},
DOI={10.1103/physrevb.81.075307},
number={7075307}, journal={Physical Review B}, publisher={American Physical Society
(APS)}, author={Kuznetsova, I. and Gőgh, N. and Förstner, Jens and Meier, Torsten
and Cundiff, S. T. and Varga, I. and Thomas, P.}, year={2010} }'
chicago: Kuznetsova, I., N. Gőgh, Jens Förstner, Torsten Meier, S. T. Cundiff, I.
Varga, and P. Thomas. “Modeling Excitonic Line Shapes in Weakly Disordered Semiconductor
Nanostructures.” Physical Review B 81, no. 7 (2010). https://doi.org/10.1103/physrevb.81.075307.
ieee: 'I. Kuznetsova et al., “Modeling excitonic line shapes in weakly disordered
semiconductor nanostructures,” Physical Review B, vol. 81, no. 7, Art.
no. 075307, 2010, doi: 10.1103/physrevb.81.075307.'
mla: Kuznetsova, I., et al. “Modeling Excitonic Line Shapes in Weakly Disordered
Semiconductor Nanostructures.” Physical Review B, vol. 81, no. 7, 075307,
American Physical Society (APS), 2010, doi:10.1103/physrevb.81.075307.
short: I. Kuznetsova, N. Gőgh, J. Förstner, T. Meier, S.T. Cundiff, I. Varga, P.
Thomas, Physical Review B 81 (2010).
date_created: 2018-08-28T09:09:37Z
date_updated: 2025-12-16T11:24:45Z
ddc:
- '530'
department:
- _id: '15'
- _id: '293'
- _id: '170'
- _id: '230'
- _id: '35'
- _id: '34'
- _id: '61'
doi: 10.1103/physrevb.81.075307
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-28T09:13:01Z
date_updated: 2018-08-28T09:13:01Z
file_id: '4178'
file_name: 2010 Kuznetsova,Gögh,Förstner,Meier T,Cundiff, Varga,Thomas_Modeling
excitonic line shapes in weakly disordered semiconductor nanostructures.pdf
file_size: 713758
relation: main_file
success: 1
file_date_updated: 2018-08-28T09:13:01Z
has_accepted_license: '1'
intvolume: ' 81'
issue: '7'
keyword:
- tet_topic_qw
language:
- iso: eng
publication: Physical Review B
publication_identifier:
issn:
- 1098-0121
- 1550-235X
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Modeling excitonic line shapes in weakly disordered semiconductor nanostructures
type: journal_article
user_id: '16199'
volume: 81
year: '2010'
...
---
_id: '4123'
abstract:
- lang: eng
text: GaAs-based semiconductor microdisks with high quality whispering gallery modes
(Q44000) have been fabricated.A layer of self-organized InAs quantumdots (QDs)
served as a light source to feed the optical modes at room temperature. In order
to achieve frequency tuning of the optical modes, the microdisk devices have been
immersed in 4 – cyano – 4´-pentylbiphenyl (5CB), a liquid crystal(LC) with a nematic
phase below the clearing temperature of TC≈34°C .We have studied the device performance
in the temperature rangeof T=20-50°C, in order to investigate the influence of
the nematic–isotropic phase transition on the optical modes. Moreover,we havea
pplied an AC electric field to the device,which leads in the nematic phase to
a reorientation of the anisotropic dielectric tensor of the liquid crystal.This
electrical anisotropy can be used to achieve electrical tunability of the optical
modes.Using the finite-difference time domain (FDTD) technique with an anisotropic
material model, we are able to describe the influence of the liquid crystal qualitatively.
article_type: original
author:
- first_name: Karoline A.
full_name: Piegdon, Karoline A.
last_name: Piegdon
- first_name: Matthias
full_name: Offer, Matthias
last_name: Offer
- first_name: Axel
full_name: Lorke, Axel
last_name: Lorke
- first_name: Martin
full_name: Urbanski, Martin
last_name: Urbanski
- first_name: Andreas
full_name: Hoischen, Andreas
last_name: Hoischen
- first_name: Heinz-Siegfried
full_name: Kitzerow, Heinz-Siegfried
id: '254'
last_name: Kitzerow
- first_name: Stefan
full_name: Declair, Stefan
last_name: Declair
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Dirk
full_name: Reuter, Dirk
id: '37763'
last_name: Reuter
- first_name: Andreas D.
full_name: Wieck, Andreas D.
last_name: Wieck
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
citation:
ama: 'Piegdon KA, Offer M, Lorke A, et al. Self-assembled quantum dots in a liquid-crystal-tunable
microdisk resonator. Physica E: Low-dimensional Systems and Nanostructures.
2010;42(10):2552-2555. doi:10.1016/j.physe.2009.12.051'
apa: 'Piegdon, K. A., Offer, M., Lorke, A., Urbanski, M., Hoischen, A., Kitzerow,
H.-S., Declair, S., Förstner, J., Meier, T., Reuter, D., Wieck, A. D., & Meier,
C. (2010). Self-assembled quantum dots in a liquid-crystal-tunable microdisk resonator.
Physica E: Low-Dimensional Systems and Nanostructures, 42(10), 2552–2555.
https://doi.org/10.1016/j.physe.2009.12.051'
bibtex: '@article{Piegdon_Offer_Lorke_Urbanski_Hoischen_Kitzerow_Declair_Förstner_Meier_Reuter_et
al._2010, title={Self-assembled quantum dots in a liquid-crystal-tunable microdisk
resonator}, volume={42}, DOI={10.1016/j.physe.2009.12.051},
number={10}, journal={Physica E: Low-dimensional Systems and Nanostructures},
publisher={Elsevier BV}, author={Piegdon, Karoline A. and Offer, Matthias and
Lorke, Axel and Urbanski, Martin and Hoischen, Andreas and Kitzerow, Heinz-Siegfried
and Declair, Stefan and Förstner, Jens and Meier, Torsten and Reuter, Dirk and
et al.}, year={2010}, pages={2552–2555} }'
chicago: 'Piegdon, Karoline A., Matthias Offer, Axel Lorke, Martin Urbanski, Andreas
Hoischen, Heinz-Siegfried Kitzerow, Stefan Declair, et al. “Self-Assembled Quantum
Dots in a Liquid-Crystal-Tunable Microdisk Resonator.” Physica E: Low-Dimensional
Systems and Nanostructures 42, no. 10 (2010): 2552–55. https://doi.org/10.1016/j.physe.2009.12.051.'
ieee: 'K. A. Piegdon et al., “Self-assembled quantum dots in a liquid-crystal-tunable
microdisk resonator,” Physica E: Low-dimensional Systems and Nanostructures,
vol. 42, no. 10, pp. 2552–2555, 2010, doi: 10.1016/j.physe.2009.12.051.'
mla: 'Piegdon, Karoline A., et al. “Self-Assembled Quantum Dots in a Liquid-Crystal-Tunable
Microdisk Resonator.” Physica E: Low-Dimensional Systems and Nanostructures,
vol. 42, no. 10, Elsevier BV, 2010, pp. 2552–55, doi:10.1016/j.physe.2009.12.051.'
short: 'K.A. Piegdon, M. Offer, A. Lorke, M. Urbanski, A. Hoischen, H.-S. Kitzerow,
S. Declair, J. Förstner, T. Meier, D. Reuter, A.D. Wieck, C. Meier, Physica E:
Low-Dimensional Systems and Nanostructures 42 (2010) 2552–2555.'
date_created: 2018-08-27T10:03:35Z
date_updated: 2025-12-16T11:32:03Z
ddc:
- '530'
department:
- _id: '15'
- _id: '230'
- _id: '2'
- _id: '293'
- _id: '292'
- _id: '35'
- _id: '287'
- _id: '313'
- _id: '170'
doi: 10.1016/j.physe.2009.12.051
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-27T10:06:57Z
date_updated: 2018-08-27T10:06:57Z
file_id: '4124'
file_name: 2010 Piegdon,Offer,Lork,Urbanski,Hoischen,Kitzerwo, Declair,Förstner_Self-assembled
quantum dots in a liquid-crystal-tunable microdisk resonator.pdf
file_size: 403248
relation: main_file
success: 1
file_date_updated: 2018-08-27T10:06:57Z
has_accepted_license: '1'
intvolume: ' 42'
issue: '10'
keyword:
- tet_topic_qd
- tet_topic_microdisk
language:
- iso: eng
page: 2552-2555
publication: 'Physica E: Low-dimensional Systems and Nanostructures'
publication_identifier:
issn:
- 1386-9477
publication_status: published
publisher: Elsevier BV
status: public
title: Self-assembled quantum dots in a liquid-crystal-tunable microdisk resonator
type: journal_article
user_id: '16199'
volume: 42
year: '2010'
...
---
_id: '4169'
abstract:
- lang: eng
text: "It is demonstrated that valence-band mixing in GaAs quantum wells tremendously
modifies electronic\r\ntransport. A coherent control scheme in which ultrafast
currents are optically injected into undoped GaAs\r\nquantum wells upon excitation
with femtosecond laser pulses is employed. An oscillatory dependence of\r\nthe
injection current amplitude and direction on the excitation photon energy is observed.
A microscopic\r\ntheoretical analysis shows that this current reversal is caused
by the coupling of the light- and heavy-hole\r\nbands and that the hole currents
dominate the overall current response. These surprising consequences of\r\nband
mixing illuminate fundamental physics as they are unique for experiments which
are able to monitor\r\nelectronic transport resulting from carriers with relatively
large momenta."
article_number: '217401'
article_type: original
author:
- first_name: S.
full_name: Priyadarshi, S.
last_name: Priyadarshi
- first_name: A. M.
full_name: Racu, A. M.
last_name: Racu
- first_name: K.
full_name: Pierz, K.
last_name: Pierz
- first_name: U.
full_name: Siegner, U.
last_name: Siegner
- first_name: M.
full_name: Bieler, M.
last_name: Bieler
- first_name: H. T.
full_name: Duc, H. T.
last_name: Duc
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
citation:
ama: Priyadarshi S, Racu AM, Pierz K, et al. Reversal of Coherently Controlled Ultrafast
Photocurrents by Band Mixing in Undoped GaAs Quantum Wells. Physical Review
Letters. 2010;104(21). doi:10.1103/physrevlett.104.217401
apa: Priyadarshi, S., Racu, A. M., Pierz, K., Siegner, U., Bieler, M., Duc, H. T.,
Förstner, J., & Meier, T. (2010). Reversal of Coherently Controlled Ultrafast
Photocurrents by Band Mixing in Undoped GaAs Quantum Wells. Physical Review
Letters, 104(21), Article 217401. https://doi.org/10.1103/physrevlett.104.217401
bibtex: '@article{Priyadarshi_Racu_Pierz_Siegner_Bieler_Duc_Förstner_Meier_2010,
title={Reversal of Coherently Controlled Ultrafast Photocurrents by Band Mixing
in Undoped GaAs Quantum Wells}, volume={104}, DOI={10.1103/physrevlett.104.217401},
number={21217401}, journal={Physical Review Letters}, publisher={American Physical
Society (APS)}, author={Priyadarshi, S. and Racu, A. M. and Pierz, K. and Siegner,
U. and Bieler, M. and Duc, H. T. and Förstner, Jens and Meier, Torsten}, year={2010}
}'
chicago: Priyadarshi, S., A. M. Racu, K. Pierz, U. Siegner, M. Bieler, H. T. Duc,
Jens Förstner, and Torsten Meier. “Reversal of Coherently Controlled Ultrafast
Photocurrents by Band Mixing in Undoped GaAs Quantum Wells.” Physical Review
Letters 104, no. 21 (2010). https://doi.org/10.1103/physrevlett.104.217401.
ieee: 'S. Priyadarshi et al., “Reversal of Coherently Controlled Ultrafast
Photocurrents by Band Mixing in Undoped GaAs Quantum Wells,” Physical Review
Letters, vol. 104, no. 21, Art. no. 217401, 2010, doi: 10.1103/physrevlett.104.217401.'
mla: Priyadarshi, S., et al. “Reversal of Coherently Controlled Ultrafast Photocurrents
by Band Mixing in Undoped GaAs Quantum Wells.” Physical Review Letters,
vol. 104, no. 21, 217401, American Physical Society (APS), 2010, doi:10.1103/physrevlett.104.217401.
short: S. Priyadarshi, A.M. Racu, K. Pierz, U. Siegner, M. Bieler, H.T. Duc, J.
Förstner, T. Meier, Physical Review Letters 104 (2010).
date_created: 2018-08-28T08:40:16Z
date_updated: 2025-12-16T11:32:36Z
ddc:
- '530'
department:
- _id: '15'
- _id: '293'
- _id: '170'
- _id: '230'
- _id: '35'
- _id: '34'
- _id: '61'
- _id: '27'
doi: 10.1103/physrevlett.104.217401
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-28T08:41:56Z
date_updated: 2018-08-28T08:41:56Z
file_id: '4170'
file_name: 2010 Priyadarshi,Racu,Pierz,Siegner,Bieler,Duc,Förstner,Meier T_Reversal
of coherently controlled ultrafast photocurrents by band mixing in undoped GaAs
quantum wells.pdf
file_size: 447293
relation: main_file
success: 1
file_date_updated: 2018-08-28T08:41:56Z
has_accepted_license: '1'
intvolume: ' 104'
issue: '21'
keyword:
- tet_topic_qw
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Physical Review Letters
publication_identifier:
issn:
- 0031-9007
- 1079-7114
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Reversal of Coherently Controlled Ultrafast Photocurrents by Band Mixing in
Undoped GaAs Quantum Wells
type: journal_article
user_id: '16199'
volume: 104
year: '2010'
...
---
_id: '4172'
abstract:
- lang: eng
text: "Microdisks made from GaAs with embedded InAs quantum dots are immersed in
the liquid crystal 4-cyano-4’-pentylbiphenyl (5CB). The quantum dots serve as
emitters feeding the optical modes of the photonic cavity. By changing temperature,
the liquid crystal undergoes a phase transition from the isotropic to the nematic
state, which can be used\r\nas an effective tuning mechanism of the photonic modes
of the cavity. In the nematic state, the uniaxial electrical anisotropy of the
liquid crystal molecules can be exploited for orienting the material in an electric
field,\r\nthus externally controlling the birefringence of the material. Using
this effect, an electric field induced tuning of the modes is achieved. Numerical
simulations using the finite-differences time-domain (FDTD) technique\r\nemploying
an anisotropic dielectric medium allow to understand the alignment of the liquid
crystal molecules on the surface of the microdisk resonator."
article_number: '7946'
article_type: original
author:
- first_name: Karoline A.
full_name: Piegdon, Karoline A.
last_name: Piegdon
- first_name: Stefan
full_name: Declair, Stefan
last_name: Declair
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Heiner
full_name: Matthias, Heiner
last_name: Matthias
- first_name: Martin
full_name: Urbanski, Martin
last_name: Urbanski
- first_name: Heinz-Siegfried
full_name: Kitzerow, Heinz-Siegfried
id: '254'
last_name: Kitzerow
- first_name: Dirk
full_name: Reuter, Dirk
id: '37763'
last_name: Reuter
- first_name: Andreas D.
full_name: Wieck, Andreas D.
last_name: Wieck
- first_name: Axel
full_name: Lorke, Axel
last_name: Lorke
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
citation:
ama: Piegdon KA, Declair S, Förstner J, et al. Tuning quantum-dot based photonic
devices with liquid crystals. Optics Express. 2010;18(8). doi:10.1364/oe.18.007946
apa: Piegdon, K. A., Declair, S., Förstner, J., Meier, T., Matthias, H., Urbanski,
M., Kitzerow, H.-S., Reuter, D., Wieck, A. D., Lorke, A., & Meier, C. (2010).
Tuning quantum-dot based photonic devices with liquid crystals. Optics Express,
18(8), Article 7946. https://doi.org/10.1364/oe.18.007946
bibtex: '@article{Piegdon_Declair_Förstner_Meier_Matthias_Urbanski_Kitzerow_Reuter_Wieck_Lorke_et
al._2010, title={Tuning quantum-dot based photonic devices with liquid crystals},
volume={18}, DOI={10.1364/oe.18.007946},
number={87946}, journal={Optics Express}, publisher={The Optical Society}, author={Piegdon,
Karoline A. and Declair, Stefan and Förstner, Jens and Meier, Torsten and Matthias,
Heiner and Urbanski, Martin and Kitzerow, Heinz-Siegfried and Reuter, Dirk and
Wieck, Andreas D. and Lorke, Axel and et al.}, year={2010} }'
chicago: Piegdon, Karoline A., Stefan Declair, Jens Förstner, Torsten Meier, Heiner
Matthias, Martin Urbanski, Heinz-Siegfried Kitzerow, et al. “Tuning Quantum-Dot
Based Photonic Devices with Liquid Crystals.” Optics Express 18, no. 8
(2010). https://doi.org/10.1364/oe.18.007946.
ieee: 'K. A. Piegdon et al., “Tuning quantum-dot based photonic devices with
liquid crystals,” Optics Express, vol. 18, no. 8, Art. no. 7946, 2010,
doi: 10.1364/oe.18.007946.'
mla: Piegdon, Karoline A., et al. “Tuning Quantum-Dot Based Photonic Devices with
Liquid Crystals.” Optics Express, vol. 18, no. 8, 7946, The Optical Society,
2010, doi:10.1364/oe.18.007946.
short: K.A. Piegdon, S. Declair, J. Förstner, T. Meier, H. Matthias, M. Urbanski,
H.-S. Kitzerow, D. Reuter, A.D. Wieck, A. Lorke, C. Meier, Optics Express 18 (2010).
date_created: 2018-08-28T08:50:06Z
date_updated: 2025-12-16T16:44:44Z
ddc:
- '530'
department:
- _id: '15'
- _id: '287'
- _id: '293'
- _id: '292'
- _id: '35'
- _id: '230'
- _id: '313'
- _id: '170'
- _id: '27'
- _id: '34'
- _id: '61'
doi: 10.1364/oe.18.007946
file:
- access_level: open_access
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-28T08:52:50Z
date_updated: 2018-09-04T20:02:01Z
file_id: '4173'
file_name: 2010 Piegdon,Declair,Förstner,Meier T,Matthias,Urbanski,Kitzerow,Reuter,Wieck,Lorcke,Meier
C_Tuning quantum-dot based photonic devices with liquid crystals.pdf
file_size: 627755
relation: main_file
file_date_updated: 2018-09-04T20:02:01Z
has_accepted_license: '1'
intvolume: ' 18'
issue: '8'
keyword:
- tet_topic_qd
- tet_topic_microdisk
language:
- iso: eng
oa: '1'
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: The Optical Society
status: public
title: Tuning quantum-dot based photonic devices with liquid crystals
type: journal_article
urn: '41725'
user_id: '16199'
volume: 18
year: '2010'
...
---
_id: '4180'
abstract:
- lang: eng
text: We show that an optically driven carrier spin undergoes indirect dephasing
even in the absence of spin-reservoir coupling and illustrate it for phonon-induced
decoherence during optical spin rotation in a single quantum dot.
article_number: NMA1
author:
- first_name: Anna
full_name: Grodecka, Anna
last_name: Grodecka
- first_name: Pawel
full_name: Machnikowski, Pawel
last_name: Machnikowski
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: 'Grodecka A, Machnikowski P, Förstner J. Indirect Dephasing Channel for Optically
Controlled Spin in a Single Quantum Dot. In: Advances in Optical Sciences Congress.
OSA Technical Digest (CD) (Optical Society of America, 2009); 2009. doi:10.1364/nlo.2009.nma1'
apa: Grodecka, A., Machnikowski, P., & Förstner, J. (2009). Indirect Dephasing
Channel for Optically Controlled Spin in a Single Quantum Dot. In Advances
in Optical Sciences Congress. OSA Technical Digest (CD) (Optical Society of
America, 2009). https://doi.org/10.1364/nlo.2009.nma1
bibtex: '@inproceedings{Grodecka_Machnikowski_Förstner_2009, title={Indirect Dephasing
Channel for Optically Controlled Spin in a Single Quantum Dot}, DOI={10.1364/nlo.2009.nma1},
number={NMA1}, booktitle={Advances in Optical Sciences Congress}, publisher={OSA
Technical Digest (CD) (Optical Society of America, 2009)}, author={Grodecka, Anna
and Machnikowski, Pawel and Förstner, Jens}, year={2009} }'
chicago: Grodecka, Anna, Pawel Machnikowski, and Jens Förstner. “Indirect Dephasing
Channel for Optically Controlled Spin in a Single Quantum Dot.” In Advances
in Optical Sciences Congress. OSA Technical Digest (CD) (Optical Society of
America, 2009), 2009. https://doi.org/10.1364/nlo.2009.nma1.
ieee: A. Grodecka, P. Machnikowski, and J. Förstner, “Indirect Dephasing Channel
for Optically Controlled Spin in a Single Quantum Dot,” in Advances in Optical
Sciences Congress, 2009.
mla: Grodecka, Anna, et al. “Indirect Dephasing Channel for Optically Controlled
Spin in a Single Quantum Dot.” Advances in Optical Sciences Congress, NMA1,
OSA Technical Digest (CD) (Optical Society of America, 2009), 2009, doi:10.1364/nlo.2009.nma1.
short: 'A. Grodecka, P. Machnikowski, J. Förstner, in: Advances in Optical Sciences
Congress, OSA Technical Digest (CD) (Optical Society of America, 2009), 2009.'
date_created: 2018-08-28T09:22:42Z
date_updated: 2022-01-06T07:00:30Z
doi: 10.1364/nlo.2009.nma1
keyword:
- tet_topic_qd
language:
- iso: eng
publication: Advances in Optical Sciences Congress
publication_identifier:
isbn:
- '9781557528735'
publication_status: published
publisher: OSA Technical Digest (CD) (Optical Society of America, 2009)
status: public
title: Indirect Dephasing Channel for Optically Controlled Spin in a Single Quantum
Dot
type: conference
user_id: '55706'
year: '2009'
...
---
_id: '4182'
abstract:
- lang: eng
text: "We demonstrate that an optically driven spin of a carrier in a quantum dot
undergoes indirect dephasing via\r\nconditional optically induced charge evolution
even in the absence of any direct interaction between the spin\r\nand its environment.
A generic model for the indirect dephasing with a three-component system with
spin,\r\ncharge, and reservoir is proposed. This indirect decoherence channel
is studied for the optical spin manipulation\r\nin a quantum dot with a microscopic
description of the charge-phonon interaction taking into account its\r\nnon-Markovian
nature."
article_number: '042331'
article_type: original
author:
- first_name: A.
full_name: Grodecka, A.
last_name: Grodecka
- first_name: P.
full_name: Machnikowski, P.
last_name: Machnikowski
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Grodecka A, Machnikowski P, Förstner J. Indirect spin dephasing via charge-state
decoherence in optical control schemes in quantum dots. Physical Review A.
2009;79(4). doi:10.1103/physreva.79.042331
apa: Grodecka, A., Machnikowski, P., & Förstner, J. (2009). Indirect spin dephasing
via charge-state decoherence in optical control schemes in quantum dots. Physical
Review A, 79(4). https://doi.org/10.1103/physreva.79.042331
bibtex: '@article{Grodecka_Machnikowski_Förstner_2009, title={Indirect spin dephasing
via charge-state decoherence in optical control schemes in quantum dots}, volume={79},
DOI={10.1103/physreva.79.042331},
number={4042331}, journal={Physical Review A}, publisher={American Physical Society
(APS)}, author={Grodecka, A. and Machnikowski, P. and Förstner, Jens}, year={2009}
}'
chicago: Grodecka, A., P. Machnikowski, and Jens Förstner. “Indirect Spin Dephasing
via Charge-State Decoherence in Optical Control Schemes in Quantum Dots.” Physical
Review A 79, no. 4 (2009). https://doi.org/10.1103/physreva.79.042331.
ieee: A. Grodecka, P. Machnikowski, and J. Förstner, “Indirect spin dephasing via
charge-state decoherence in optical control schemes in quantum dots,” Physical
Review A, vol. 79, no. 4, 2009.
mla: Grodecka, A., et al. “Indirect Spin Dephasing via Charge-State Decoherence
in Optical Control Schemes in Quantum Dots.” Physical Review A, vol. 79,
no. 4, 042331, American Physical Society (APS), 2009, doi:10.1103/physreva.79.042331.
short: A. Grodecka, P. Machnikowski, J. Förstner, Physical Review A 79 (2009).
date_created: 2018-08-28T09:32:32Z
date_updated: 2022-01-06T07:00:31Z
ddc:
- '530'
department:
- _id: '15'
doi: 10.1103/physreva.79.042331
file:
- access_level: open_access
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-28T09:33:22Z
date_updated: 2018-09-04T19:36:35Z
file_id: '4183'
file_name: 2009 Grodecka,Machnikowski,Förstner_Indirect spin dephasing via charge-state
decoherence in optical control schemes in quantum dots.pdf
file_size: 192120
relation: main_file
file_date_updated: 2018-09-04T19:36:35Z
has_accepted_license: '1'
intvolume: ' 79'
issue: '4'
keyword:
- tet_topic_qd
language:
- iso: eng
oa: '1'
publication: Physical Review A
publication_identifier:
issn:
- 1050-2947
- 1094-1622
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Indirect spin dephasing via charge-state decoherence in optical control schemes
in quantum dots
type: journal_article
urn: '41826'
user_id: '158'
volume: 79
year: '2009'
...
---
_id: '4184'
abstract:
- lang: eng
text: We have experimentally investigated injection currents generated by all-optical
excitation of GaAs/AlGaAs quantum wells excited with 130 fs optical pulses. The
currents have been detected via free-space THz experiments at room temperature.
Our experiments prove that Coulomb effects strongly influence injection currents.
This becomes most prominently visible when exciting light-hole exciton transitions.
At this photon energy we observe a pronounced phase shift of the current transients
which is due to oppositely oriented heavy-hole and light-hole type contributions.
We are currently developing a microscopic theory based on a 14×14 k.p model in
combination with the semiconductor Bloch equations to describe the observed features
quantitatively. The combined theoretical and experimental approach will allow
us to analyze the influence of the bandstructure and interaction effects on the
injection current amplitude and current dynamics.
author:
- first_name: M.
full_name: Bieler, M.
last_name: Bieler
- first_name: K.
full_name: Pierz, K.
last_name: Pierz
- first_name: U.
full_name: Siegner, U.
last_name: Siegner
- first_name: P.
full_name: Dawson, P.
last_name: Dawson
- first_name: H. T.
full_name: Duc, H. T.
last_name: Duc
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
citation:
ama: 'Bieler M, Pierz K, Siegner U, et al. Generation of injection currents in (110)-oriented
GaAs quantum wells: experimental observation and development of a microscopic
theory. In: Tsen K-T, Song J-J, Betz M, Elezzabi AY, eds. Ultrafast Phenomena
in Semiconductors and Nanostructure Materials XIII. Vol 7214. SPIE Proceedings.
SPIE; 2009:721404-721404-721413. doi:10.1117/12.811841'
apa: 'Bieler, M., Pierz, K., Siegner, U., Dawson, P., Duc, H. T., Förstner, J.,
& Meier, T. (2009). Generation of injection currents in (110)-oriented GaAs
quantum wells: experimental observation and development of a microscopic theory.
In K.-T. Tsen, J.-J. Song, M. Betz, & A. Y. Elezzabi (Eds.), Ultrafast
Phenomena in Semiconductors and Nanostructure Materials XIII (Vol. 7214, pp.
721404-721404–721413). SPIE. https://doi.org/10.1117/12.811841'
bibtex: '@inproceedings{Bieler_Pierz_Siegner_Dawson_Duc_Förstner_Meier_2009, series={SPIE
Proceedings}, title={Generation of injection currents in (110)-oriented GaAs quantum
wells: experimental observation and development of a microscopic theory}, volume={7214},
DOI={10.1117/12.811841}, booktitle={Ultrafast
Phenomena in Semiconductors and Nanostructure Materials XIII}, publisher={SPIE},
author={Bieler, M. and Pierz, K. and Siegner, U. and Dawson, P. and Duc, H. T.
and Förstner, Jens and Meier, Torsten}, editor={Tsen, Kong-Thon and Song, Jin-Joo
and Betz, Markus and Elezzabi, Abdulhakem Y.}, year={2009}, pages={721404-721404–13},
collection={SPIE Proceedings} }'
chicago: 'Bieler, M., K. Pierz, U. Siegner, P. Dawson, H. T. Duc, Jens Förstner,
and Torsten Meier. “Generation of Injection Currents in (110)-Oriented GaAs Quantum
Wells: Experimental Observation and Development of a Microscopic Theory.” In Ultrafast
Phenomena in Semiconductors and Nanostructure Materials XIII, edited by Kong-Thon
Tsen, Jin-Joo Song, Markus Betz, and Abdulhakem Y. Elezzabi, 7214:721404-721404–13.
SPIE Proceedings. SPIE, 2009. https://doi.org/10.1117/12.811841.'
ieee: 'M. Bieler et al., “Generation of injection currents in (110)-oriented
GaAs quantum wells: experimental observation and development of a microscopic
theory,” in Ultrafast Phenomena in Semiconductors and Nanostructure Materials
XIII, San Jose (California / USA), 2009, vol. 7214, pp. 721404-721404–13,
doi: 10.1117/12.811841.'
mla: 'Bieler, M., et al. “Generation of Injection Currents in (110)-Oriented GaAs
Quantum Wells: Experimental Observation and Development of a Microscopic Theory.”
Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII,
edited by Kong-Thon Tsen et al., vol. 7214, SPIE, 2009, pp. 721404-721404–13,
doi:10.1117/12.811841.'
short: 'M. Bieler, K. Pierz, U. Siegner, P. Dawson, H.T. Duc, J. Förstner, T. Meier,
in: K.-T. Tsen, J.-J. Song, M. Betz, A.Y. Elezzabi (Eds.), Ultrafast Phenomena
in Semiconductors and Nanostructure Materials XIII, SPIE, 2009, pp. 721404-721404–13.'
conference:
location: San Jose (California / USA)
name: 'SPIE OPTO: Integrated Optoelectronic Devices, 2009'
date_created: 2018-08-28T09:35:18Z
date_updated: 2023-04-21T20:01:45Z
department:
- _id: '293'
- _id: '15'
- _id: '170'
- _id: '230'
doi: 10.1117/12.811841
editor:
- first_name: Kong-Thon
full_name: Tsen, Kong-Thon
last_name: Tsen
- first_name: Jin-Joo
full_name: Song, Jin-Joo
last_name: Song
- first_name: Markus
full_name: Betz, Markus
last_name: Betz
- first_name: Abdulhakem Y.
full_name: Elezzabi, Abdulhakem Y.
last_name: Elezzabi
intvolume: ' 7214'
keyword:
- tet_topic_qw
language:
- iso: eng
page: 721404-721404-13
publication: Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII
publication_status: published
publisher: SPIE
series_title: SPIE Proceedings
status: public
title: 'Generation of injection currents in (110)-oriented GaAs quantum wells: experimental
observation and development of a microscopic theory'
type: conference
user_id: '49063'
volume: 7214
year: '2009'
...
---
_id: '4187'
abstract:
- lang: eng
text: "We study phonon-assisted electron tunneling in semiconductor quantum dot
molecules. In particular, singletsinglet\r\nrelaxation in a two-electron-doped
structure is considered. The influence of Coulomb interaction is\r\ndiscussed
via comparison with a single-electron system. We find that the relaxation rate
reaches similar values\r\nin the two cases but the Coulomb interaction shifts
the maximum rates toward larger separations between the\r\ndots. The difference
in electron-phonon interaction between deformation potential and piezoelectric
coupling is\r\ninvestigated. We show that the phonon-induced tunneling between
two-electron singlet states is a fast process,\r\ntaking place on the time scales
of the order of a few tens of picoseconds."
article_number: '085302'
article_type: original
author:
- first_name: A.
full_name: Grodecka, A.
last_name: Grodecka
- first_name: P.
full_name: Machnikowski, P.
last_name: Machnikowski
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Grodecka A, Machnikowski P, Förstner J. Phonon-assisted tunneling between singlet
states in two-electron quantum dot molecules. Physical Review B. 2008;78(8).
doi:10.1103/physrevb.78.085302
apa: Grodecka, A., Machnikowski, P., & Förstner, J. (2008). Phonon-assisted
tunneling between singlet states in two-electron quantum dot molecules. Physical
Review B, 78(8). https://doi.org/10.1103/physrevb.78.085302
bibtex: '@article{Grodecka_Machnikowski_Förstner_2008, title={Phonon-assisted tunneling
between singlet states in two-electron quantum dot molecules}, volume={78}, DOI={10.1103/physrevb.78.085302},
number={8085302}, journal={Physical Review B}, publisher={American Physical Society
(APS)}, author={Grodecka, A. and Machnikowski, P. and Förstner, Jens}, year={2008}
}'
chicago: Grodecka, A., P. Machnikowski, and Jens Förstner. “Phonon-Assisted Tunneling
between Singlet States in Two-Electron Quantum Dot Molecules.” Physical Review
B 78, no. 8 (2008). https://doi.org/10.1103/physrevb.78.085302.
ieee: A. Grodecka, P. Machnikowski, and J. Förstner, “Phonon-assisted tunneling
between singlet states in two-electron quantum dot molecules,” Physical Review
B, vol. 78, no. 8, 2008.
mla: Grodecka, A., et al. “Phonon-Assisted Tunneling between Singlet States in Two-Electron
Quantum Dot Molecules.” Physical Review B, vol. 78, no. 8, 085302, American
Physical Society (APS), 2008, doi:10.1103/physrevb.78.085302.
short: A. Grodecka, P. Machnikowski, J. Förstner, Physical Review B 78 (2008).
date_created: 2018-08-28T10:21:47Z
date_updated: 2022-01-06T07:00:31Z
ddc:
- '530'
department:
- _id: '15'
doi: 10.1103/physrevb.78.085302
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-28T10:22:35Z
date_updated: 2018-08-28T10:22:35Z
file_id: '4188'
file_name: 2008 Grodecka,Machnikowski,Förstner_Phonon-assisted tunneling between
singlet states in two-electron quantum dot molecules.pdf
file_size: 2536294
relation: main_file
success: 1
file_date_updated: 2018-08-28T10:22:35Z
has_accepted_license: '1'
intvolume: ' 78'
issue: '8'
keyword:
- tet_topic_qd
language:
- iso: eng
publication: Physical Review B
publication_identifier:
issn:
- 1098-0121
- 1550-235X
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Phonon-assisted tunneling between singlet states in two-electron quantum dot
molecules
type: journal_article
user_id: '55706'
volume: 78
year: '2008'
...
---
_id: '4256'
abstract:
- lang: eng
text: "We present phase-resolved pulse propagation measurements that allow us to
fully describe the transition\r\nbetween several light–matter interaction regimes.
The complete range from linear excitation to the breakdown\r\nof the photonic
bandgap on to self-induced transmission and self-phase modulation is studied on
a\r\nhigh-quality multiple-quantum-well Bragg structure. An improved fast-scanning
cross-correlation\r\nfrequency-resolved optical gating setup is applied to retrieve
the pulse phase with an excellent signal-tonoise\r\nratio. Calculations using
the semiconductor Maxwell–Bloch equations show qualitative agreement\r\nwith the
experimental findings. "
article_number: '1384'
article_type: original
author:
- first_name: Tilman Höner
full_name: zu Siederdissen, Tilman Höner
last_name: zu Siederdissen
- first_name: Nils C.
full_name: Nielsen, Nils C.
last_name: Nielsen
- first_name: Jürgen
full_name: Kuhl, Jürgen
last_name: Kuhl
- first_name: Martin
full_name: Schaarschmidt, Martin
last_name: Schaarschmidt
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Andreas
full_name: Knorr, Andreas
last_name: Knorr
- first_name: Galina
full_name: Khitrova, Galina
last_name: Khitrova
- first_name: Hyatt M.
full_name: Gibbs, Hyatt M.
last_name: Gibbs
- first_name: Stephan W.
full_name: Koch, Stephan W.
last_name: Koch
- first_name: Harald
full_name: Giessen, Harald
last_name: Giessen
citation:
ama: zu Siederdissen TH, Nielsen NC, Kuhl J, et al. Transition between different
coherent light–matter interaction regimes analyzed by phase-resolved pulse propagation.
Optics Letters. 2008;30(11). doi:10.1364/ol.30.001384
apa: zu Siederdissen, T. H., Nielsen, N. C., Kuhl, J., Schaarschmidt, M., Förstner,
J., Knorr, A., … Giessen, H. (2008). Transition between different coherent light–matter
interaction regimes analyzed by phase-resolved pulse propagation. Optics Letters,
30(11). https://doi.org/10.1364/ol.30.001384
bibtex: '@article{zu Siederdissen_Nielsen_Kuhl_Schaarschmidt_Förstner_Knorr_Khitrova_Gibbs_Koch_Giessen_2008,
title={Transition between different coherent light–matter interaction regimes
analyzed by phase-resolved pulse propagation}, volume={30}, DOI={10.1364/ol.30.001384},
number={111384}, journal={Optics Letters}, publisher={The Optical Society}, author={zu
Siederdissen, Tilman Höner and Nielsen, Nils C. and Kuhl, Jürgen and Schaarschmidt,
Martin and Förstner, Jens and Knorr, Andreas and Khitrova, Galina and Gibbs, Hyatt
M. and Koch, Stephan W. and Giessen, Harald}, year={2008} }'
chicago: Siederdissen, Tilman Höner zu, Nils C. Nielsen, Jürgen Kuhl, Martin Schaarschmidt,
Jens Förstner, Andreas Knorr, Galina Khitrova, Hyatt M. Gibbs, Stephan W. Koch,
and Harald Giessen. “Transition between Different Coherent Light–Matter Interaction
Regimes Analyzed by Phase-Resolved Pulse Propagation.” Optics Letters 30,
no. 11 (2008). https://doi.org/10.1364/ol.30.001384.
ieee: T. H. zu Siederdissen et al., “Transition between different coherent
light–matter interaction regimes analyzed by phase-resolved pulse propagation,”
Optics Letters, vol. 30, no. 11, 2008.
mla: zu Siederdissen, Tilman Höner, et al. “Transition between Different Coherent
Light–Matter Interaction Regimes Analyzed by Phase-Resolved Pulse Propagation.”
Optics Letters, vol. 30, no. 11, 1384, The Optical Society, 2008, doi:10.1364/ol.30.001384.
short: T.H. zu Siederdissen, N.C. Nielsen, J. Kuhl, M. Schaarschmidt, J. Förstner,
A. Knorr, G. Khitrova, H.M. Gibbs, S.W. Koch, H. Giessen, Optics Letters 30 (2008).
date_created: 2018-08-29T09:12:59Z
date_updated: 2022-01-06T07:00:43Z
ddc:
- '530'
doi: 10.1364/ol.30.001384
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-29T09:13:36Z
date_updated: 2018-09-04T20:01:11Z
file_id: '4257'
file_name: 2005 Siederdissen et al_Transition between different coherent light–matter
interaction regimes analyzed by phase-resolved pulse propagation.pdf
file_size: 125355
relation: main_file
file_date_updated: 2018-09-04T20:01:11Z
has_accepted_license: '1'
intvolume: ' 30'
issue: '11'
keyword:
- tet_topic_polariton
- tet_topic_qw
language:
- iso: eng
oa: '1'
publication: Optics Letters
publication_identifier:
issn:
- 0146-9592
- 1539-4794
publication_status: published
publisher: The Optical Society
status: public
title: Transition between different coherent light–matter interaction regimes analyzed
by phase-resolved pulse propagation
type: journal_article
urn: '42568'
user_id: '158'
volume: 30
year: '2008'
...
---
_id: '4317'
abstract:
- lang: eng
text: Phonon-assisted singlet-singlet relaxation in semiconductor quantum dot molecules
is studied theoretically. Laterally coupled quantum dot structures doped with
two electrons are considered. We take into account interaction with acoustic phonon
modes via deformation potential and piezoelectric coupling. We show that piezoelectric
mechanism for the considered system is of great importance and for some ranges
of quantum dot molecule parameters is the dominant contribution to relaxation.
It is shown that the phonon-assisted tunneling is much faster (down to ∼ 6 ps
even at zero temperature) in comparison with other decoherence processes. The
influence of Coulomb interaction is discussed and its consequences are indicated.
We calculate the relaxation rates for GaAs quantum dot molecules and study the
dependence on quantum dot size, distance and offset between the constituent quantum
dots. In addition the temperature dependence of the tunneling rates is analyzed.
article_type: original
author:
- first_name: Anna
full_name: Grodecka, Anna
last_name: Grodecka
- first_name: Paweł
full_name: Machnikowski, Paweł
last_name: Machnikowski
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Grodecka A, Machnikowski P, Förstner J. Theoretical study of phononassisted
singlet-singlet relaxation in two-electron semiconductor quantum dot molecules.
physica status solidi (c). 2008;6(2):474-478. doi:10.1002/pssc.200880319
apa: Grodecka, A., Machnikowski, P., & Förstner, J. (2008). Theoretical study
of phononassisted singlet-singlet relaxation in two-electron semiconductor quantum
dot molecules. Physica Status Solidi (C), 6(2), 474–478. https://doi.org/10.1002/pssc.200880319
bibtex: '@article{Grodecka_Machnikowski_Förstner_2008, title={Theoretical study
of phononassisted singlet-singlet relaxation in two-electron semiconductor quantum
dot molecules}, volume={6}, DOI={10.1002/pssc.200880319},
number={2}, journal={physica status solidi (c)}, publisher={Wiley}, author={Grodecka,
Anna and Machnikowski, Paweł and Förstner, Jens}, year={2008}, pages={474–478}
}'
chicago: 'Grodecka, Anna, Paweł Machnikowski, and Jens Förstner. “Theoretical Study
of Phononassisted Singlet-Singlet Relaxation in Two-Electron Semiconductor Quantum
Dot Molecules.” Physica Status Solidi (C) 6, no. 2 (2008): 474–78. https://doi.org/10.1002/pssc.200880319.'
ieee: A. Grodecka, P. Machnikowski, and J. Förstner, “Theoretical study of phononassisted
singlet-singlet relaxation in two-electron semiconductor quantum dot molecules,”
physica status solidi (c), vol. 6, no. 2, pp. 474–478, 2008.
mla: Grodecka, Anna, et al. “Theoretical Study of Phononassisted Singlet-Singlet
Relaxation in Two-Electron Semiconductor Quantum Dot Molecules.” Physica Status
Solidi (C), vol. 6, no. 2, Wiley, 2008, pp. 474–78, doi:10.1002/pssc.200880319.
short: A. Grodecka, P. Machnikowski, J. Förstner, Physica Status Solidi (C) 6 (2008)
474–478.
date_created: 2018-08-30T09:45:39Z
date_updated: 2022-01-06T07:00:54Z
ddc:
- '530'
department:
- _id: '15'
doi: 10.1002/pssc.200880319
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-30T09:46:20Z
date_updated: 2018-08-30T09:46:20Z
file_id: '4318'
file_name: 2009 Grodecka-Grad,Machnikowski,Förstner_Theoretical study of phonon-assisted
singlet-singlet relaxation in two-electron semiconductor quantum dot molecules.pdf
file_size: 1103973
relation: main_file
success: 1
file_date_updated: 2018-08-30T09:46:20Z
has_accepted_license: '1'
intvolume: ' 6'
issue: '2'
keyword:
- tet_topic_qd
language:
- iso: eng
page: 474-478
publication: physica status solidi (c)
publication_identifier:
issn:
- 1610-1634
- 1610-1642
publication_status: published
publisher: Wiley
status: public
title: Theoretical study of phononassisted singlet-singlet relaxation in two-electron
semiconductor quantum dot molecules
type: journal_article
user_id: '158'
volume: 6
year: '2008'
...
---
_id: '4189'
abstract:
- lang: eng
text: We theoretically study the biexciton-phonon interaction in strongly confined
semiconductor quantum dots. For spectrally narrow single-pulse excitation generation
of biexcitonic occupations is only possible via a two-photon cascade, which exhibits
renormalized Rabi oscillations and spectrally compressed phononsidebands.
article_type: original
author:
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: A.
full_name: Knorr, A.
last_name: Knorr
- first_name: J. V.
full_name: Moloney, J. V.
last_name: Moloney
citation:
ama: Förstner J, Knorr A, Moloney JV. Interplay of electron-phonon and Coulomb interaction
in semiconductor quantum dots. physica status solidi (c). 2006;3(7):2389-2392.
doi:10.1002/pssc.200668111
apa: Förstner, J., Knorr, A., & Moloney, J. V. (2006). Interplay of electron-phonon
and Coulomb interaction in semiconductor quantum dots. Physica Status Solidi
(C), 3(7), 2389–2392. https://doi.org/10.1002/pssc.200668111
bibtex: '@article{Förstner_Knorr_Moloney_2006, title={Interplay of electron-phonon
and Coulomb interaction in semiconductor quantum dots}, volume={3}, DOI={10.1002/pssc.200668111},
number={7}, journal={physica status solidi (c)}, publisher={Wiley}, author={Förstner,
Jens and Knorr, A. and Moloney, J. V.}, year={2006}, pages={2389–2392} }'
chicago: 'Förstner, Jens, A. Knorr, and J. V. Moloney. “Interplay of Electron-Phonon
and Coulomb Interaction in Semiconductor Quantum Dots.” Physica Status Solidi
(C) 3, no. 7 (2006): 2389–92. https://doi.org/10.1002/pssc.200668111.'
ieee: J. Förstner, A. Knorr, and J. V. Moloney, “Interplay of electron-phonon and
Coulomb interaction in semiconductor quantum dots,” physica status solidi (c),
vol. 3, no. 7, pp. 2389–2392, 2006.
mla: Förstner, Jens, et al. “Interplay of Electron-Phonon and Coulomb Interaction
in Semiconductor Quantum Dots.” Physica Status Solidi (C), vol. 3, no.
7, Wiley, 2006, pp. 2389–92, doi:10.1002/pssc.200668111.
short: J. Förstner, A. Knorr, J.V. Moloney, Physica Status Solidi (C) 3 (2006) 2389–2392.
date_created: 2018-08-28T10:25:14Z
date_updated: 2022-01-06T07:00:32Z
ddc:
- '530'
doi: 10.1002/pssc.200668111
extern: '1'
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-28T10:25:57Z
date_updated: 2018-08-28T10:25:57Z
file_id: '4190'
file_name: 2006 Förstner,Knorr,Moloney_Interplay of electron-phonon and Coulomb
interaction in semiconductor quantum dots..pdf
file_size: 1166894
relation: main_file
success: 1
file_date_updated: 2018-08-28T10:25:57Z
has_accepted_license: '1'
intvolume: ' 3'
issue: '7'
keyword:
- tet_topic_qd
language:
- iso: eng
page: 2389-2392
publication: physica status solidi (c)
publication_identifier:
issn:
- 1610-1634
- 1610-1642
publication_status: published
publisher: Wiley
status: public
title: Interplay of electron-phonon and Coulomb interaction in semiconductor quantum
dots
type: journal_article
user_id: '55706'
volume: 3
year: '2006'
...
---
_id: '4243'
abstract:
- lang: eng
text: We investigate the optical properties of a Coulomb-coupled double-quantum
dot system excited by coherent light pulses. Basic effects of Coulomb coupling
regarding linear and nonlinear optical processes are discussed. By numerically
solving the Heisenberg equation of motion we are able to present the temporal
evolution of the system’s density matrix for a wide range of coupling parameters.
The two main coupling effects in dipole approximation, biexcitonic shift and Förster
energy transfer, are investigated and their qualitative and quantitative influence
on absorption spectra, Rabi oscillations, and single- and two-pulse excitation
is discussed. We present simulated differential transmission spectra to allow
for comparison with recent experimental studies.
article_type: original
author:
- first_name: J.
full_name: Danckwerts, J.
last_name: Danckwerts
- first_name: K. J.
full_name: Ahn, K. J.
last_name: Ahn
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: A.
full_name: Knorr, A.
last_name: Knorr
citation:
ama: 'Danckwerts J, Ahn KJ, Förstner J, Knorr A. Theory of ultrafast nonlinear optics
of Coulomb-coupled semiconductor quantum dots: Rabi oscillations and pump-probe
spectra. Physical Review B. 2006;73(16):165318-165318-18. doi:10.1103/physrevb.73.165318'
apa: 'Danckwerts, J., Ahn, K. J., Förstner, J., & Knorr, A. (2006). Theory of
ultrafast nonlinear optics of Coulomb-coupled semiconductor quantum dots: Rabi
oscillations and pump-probe spectra. Physical Review B, 73(16),
165318-165318–18. https://doi.org/10.1103/physrevb.73.165318'
bibtex: '@article{Danckwerts_Ahn_Förstner_Knorr_2006, title={Theory of ultrafast
nonlinear optics of Coulomb-coupled semiconductor quantum dots: Rabi oscillations
and pump-probe spectra}, volume={73}, DOI={10.1103/physrevb.73.165318},
number={16}, journal={Physical Review B}, publisher={American Physical Society
(APS)}, author={Danckwerts, J. and Ahn, K. J. and Förstner, Jens and Knorr, A.},
year={2006}, pages={165318-165318–18} }'
chicago: 'Danckwerts, J., K. J. Ahn, Jens Förstner, and A. Knorr. “Theory of Ultrafast
Nonlinear Optics of Coulomb-Coupled Semiconductor Quantum Dots: Rabi Oscillations
and Pump-Probe Spectra.” Physical Review B 73, no. 16 (2006): 165318-165318–18.
https://doi.org/10.1103/physrevb.73.165318.'
ieee: 'J. Danckwerts, K. J. Ahn, J. Förstner, and A. Knorr, “Theory of ultrafast
nonlinear optics of Coulomb-coupled semiconductor quantum dots: Rabi oscillations
and pump-probe spectra,” Physical Review B, vol. 73, no. 16, pp. 165318-165318–18,
2006.'
mla: 'Danckwerts, J., et al. “Theory of Ultrafast Nonlinear Optics of Coulomb-Coupled
Semiconductor Quantum Dots: Rabi Oscillations and Pump-Probe Spectra.” Physical
Review B, vol. 73, no. 16, American Physical Society (APS), 2006, pp. 165318-165318–18,
doi:10.1103/physrevb.73.165318.'
short: J. Danckwerts, K.J. Ahn, J. Förstner, A. Knorr, Physical Review B 73 (2006)
165318-165318–18.
date_created: 2018-08-29T08:30:58Z
date_updated: 2022-01-06T07:00:41Z
ddc:
- '530'
doi: 10.1103/physrevb.73.165318
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-29T08:33:00Z
date_updated: 2018-09-04T19:59:29Z
file_id: '4245'
file_name: 2006 Danckwerts,Ahn,Förster,Knorr_Theory of ultrafast nonlinear optics
of Coulomb-coupled semiconductor quantum dots Rabi oscillations and pump-probe
spectra.pdf
file_size: 254366
relation: main_file
file_date_updated: 2018-09-04T19:59:29Z
has_accepted_license: '1'
intvolume: ' 73'
issue: '16'
keyword:
- tet_topic_qd
language:
- iso: eng
oa: '1'
page: 165318-165318-18
publication: Physical Review B
publication_identifier:
issn:
- 1098-0121
- 1550-235X
publication_status: published
publisher: American Physical Society (APS)
status: public
title: 'Theory of ultrafast nonlinear optics of Coulomb-coupled semiconductor quantum
dots: Rabi oscillations and pump-probe spectra'
type: journal_article
urn: '42430'
user_id: '158'
volume: 73
year: '2006'
...
---
_id: '4249'
abstract:
- lang: eng
text: "The interaction of electrons with LO phonons provides an important mechanism
of optical dephasing and\r\ncarrier scattering for the two-dimensional electron
gas in semiconductor quantum wells. In this paper, the\r\ncorresponding ultrafast
nonlinearities for off-resonant and resonant intersubband excitations are investigated.\r\nQuantum
kinetic effects of the electron-phonon interaction and the corresponding violation
of the microscopic\r\nenergy conservation yield a qualitative different picture
compared to the standard Markovian theory, if the\r\nphonon energy is larger than
the intersubband-gap energy."
article_type: original
author:
- first_name: Stefan
full_name: Butscher, Stefan
last_name: Butscher
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Inès
full_name: Waldmüller, Inès
last_name: Waldmüller
- first_name: Andreas
full_name: Knorr, Andreas
last_name: Knorr
citation:
ama: 'Butscher S, Förstner J, Waldmüller I, Knorr A. Ultrafast electron-phonon interaction
of intersubband transitions: Quantum kinetics from adiabatic following to Rabi-oscillations.
Physical Review B. 2005;72(4):045314-045314-4. doi:10.1103/physrevb.72.045314'
apa: 'Butscher, S., Förstner, J., Waldmüller, I., & Knorr, A. (2005). Ultrafast
electron-phonon interaction of intersubband transitions: Quantum kinetics from
adiabatic following to Rabi-oscillations. Physical Review B, 72(4),
045314-045314–4. https://doi.org/10.1103/physrevb.72.045314'
bibtex: '@article{Butscher_Förstner_Waldmüller_Knorr_2005, title={Ultrafast electron-phonon
interaction of intersubband transitions: Quantum kinetics from adiabatic following
to Rabi-oscillations}, volume={72}, DOI={10.1103/physrevb.72.045314},
number={4}, journal={Physical Review B}, publisher={American Physical Society
(APS)}, author={Butscher, Stefan and Förstner, Jens and Waldmüller, Inès and Knorr,
Andreas}, year={2005}, pages={045314-045314–4} }'
chicago: 'Butscher, Stefan, Jens Förstner, Inès Waldmüller, and Andreas Knorr. “Ultrafast
Electron-Phonon Interaction of Intersubband Transitions: Quantum Kinetics from
Adiabatic Following to Rabi-Oscillations.” Physical Review B 72, no. 4
(2005): 045314-045314–4. https://doi.org/10.1103/physrevb.72.045314.'
ieee: 'S. Butscher, J. Förstner, I. Waldmüller, and A. Knorr, “Ultrafast electron-phonon
interaction of intersubband transitions: Quantum kinetics from adiabatic following
to Rabi-oscillations,” Physical Review B, vol. 72, no. 4, pp. 045314-045314–4,
2005.'
mla: 'Butscher, Stefan, et al. “Ultrafast Electron-Phonon Interaction of Intersubband
Transitions: Quantum Kinetics from Adiabatic Following to Rabi-Oscillations.”
Physical Review B, vol. 72, no. 4, American Physical Society (APS), 2005,
pp. 045314-045314–4, doi:10.1103/physrevb.72.045314.'
short: S. Butscher, J. Förstner, I. Waldmüller, A. Knorr, Physical Review B 72 (2005)
045314-045314–4.
date_created: 2018-08-29T08:58:17Z
date_updated: 2022-01-06T07:00:41Z
ddc:
- '530'
doi: 10.1103/physrevb.72.045314
extern: '1'
file:
- access_level: open_access
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-29T08:59:27Z
date_updated: 2018-09-04T20:04:04Z
file_id: '4250'
file_name: 2005 Butscher,förstner,Waldmüller,Knorr_Ultrafast electron-phonon interaction
of intersubband transitions - Quantum kinetics from adiabatic following to Rabi-oscillations.pdf
file_size: 87611
relation: main_file
file_date_updated: 2018-09-04T20:04:04Z
has_accepted_license: '1'
intvolume: ' 72'
issue: '4'
keyword:
- tet_topic_qw
language:
- iso: eng
oa: '1'
page: 045314-045314-4
publication: Physical Review B
publication_identifier:
issn:
- 1098-0121
- 1550-235X
publication_status: published
publisher: American Physical Society (APS)
status: public
title: 'Ultrafast electron-phonon interaction of intersubband transitions: Quantum
kinetics from adiabatic following to Rabi-oscillations'
type: journal_article
urn: '42497'
user_id: '158'
volume: 72
year: '2005'
...
---
_id: '4251'
abstract:
- lang: eng
text: A system of two quantum dots coupled by dipole‐dipole interaction is investigated
within a density matrix approach. We compute the temporal evolution of the system
in the linear and nonlinear optical regime and discuss the possibility of performing
basic quantum information gates. The influence of the Förster energy transfer
on Rabi oscillations is discussed.
article_number: '1465'
author:
- first_name: J.
full_name: Danckwerts, J.
last_name: Danckwerts
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: A.
full_name: Knorr, A.
last_name: Knorr
citation:
ama: 'Danckwerts J, Förstner J, Knorr A. Quantum information processing using Coulomb-coupled
quantum dots. In: AIP Conference Proceedings. Vol 772. AIP; 2005. doi:10.1063/1.1994668'
apa: Danckwerts, J., Förstner, J., & Knorr, A. (2005). Quantum information processing
using Coulomb-coupled quantum dots. In AIP Conference Proceedings (Vol.
772). AIP. https://doi.org/10.1063/1.1994668
bibtex: '@inproceedings{Danckwerts_Förstner_Knorr_2005, title={Quantum information
processing using Coulomb-coupled quantum dots}, volume={772}, DOI={10.1063/1.1994668},
number={1465}, booktitle={AIP Conference Proceedings}, publisher={AIP}, author={Danckwerts,
J. and Förstner, Jens and Knorr, A.}, year={2005} }'
chicago: Danckwerts, J., Jens Förstner, and A. Knorr. “Quantum Information Processing
Using Coulomb-Coupled Quantum Dots.” In AIP Conference Proceedings, Vol.
772. AIP, 2005. https://doi.org/10.1063/1.1994668.
ieee: J. Danckwerts, J. Förstner, and A. Knorr, “Quantum information processing
using Coulomb-coupled quantum dots,” in AIP Conference Proceedings, 2005,
vol. 772.
mla: Danckwerts, J., et al. “Quantum Information Processing Using Coulomb-Coupled
Quantum Dots.” AIP Conference Proceedings, vol. 772, 1465, AIP, 2005, doi:10.1063/1.1994668.
short: 'J. Danckwerts, J. Förstner, A. Knorr, in: AIP Conference Proceedings, AIP,
2005.'
date_created: 2018-08-29T09:02:20Z
date_updated: 2022-01-06T07:00:42Z
doi: 10.1063/1.1994668
extern: '1'
intvolume: ' 772'
keyword:
- tet_topic_qd
language:
- iso: eng
publication: AIP Conference Proceedings
publication_identifier:
issn:
- 0094-243X
publication_status: published
publisher: AIP
status: public
title: Quantum information processing using Coulomb-coupled quantum dots
type: conference
user_id: '55706'
volume: 772
year: '2005'
...
---
_id: '4260'
abstract:
- lang: eng
text: "Using a fully quantized description of strongly confined electrons interacting
with acoustic phonons and the\r\nphoton field, the nonstationary resonance-fluorescence
spectra of a semiconductor quantum dot are investigated.\r\nFor excitation pulses
with durations approaching typical electron-phonon scattering times, the virtual\r\nquantum
processes yield an observable electron-phonon sideband broadening."
article_number: '153309'
article_type: original
author:
- first_name: K. J.
full_name: Ahn, K. J.
last_name: Ahn
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: A.
full_name: Knorr, A.
last_name: Knorr
citation:
ama: 'Ahn KJ, Förstner J, Knorr A. Resonance fluorescence of semiconductor quantum
dots: Signatures of the electron-phonon interaction. Physical Review B.
2005;71(15). doi:10.1103/physrevb.71.153309'
apa: 'Ahn, K. J., Förstner, J., & Knorr, A. (2005). Resonance fluorescence of
semiconductor quantum dots: Signatures of the electron-phonon interaction. Physical
Review B, 71(15). https://doi.org/10.1103/physrevb.71.153309'
bibtex: '@article{Ahn_Förstner_Knorr_2005, title={Resonance fluorescence of semiconductor
quantum dots: Signatures of the electron-phonon interaction}, volume={71}, DOI={10.1103/physrevb.71.153309},
number={15153309}, journal={Physical Review B}, publisher={American Physical Society
(APS)}, author={Ahn, K. J. and Förstner, Jens and Knorr, A.}, year={2005} }'
chicago: 'Ahn, K. J., Jens Förstner, and A. Knorr. “Resonance Fluorescence of Semiconductor
Quantum Dots: Signatures of the Electron-Phonon Interaction.” Physical Review
B 71, no. 15 (2005). https://doi.org/10.1103/physrevb.71.153309.'
ieee: 'K. J. Ahn, J. Förstner, and A. Knorr, “Resonance fluorescence of semiconductor
quantum dots: Signatures of the electron-phonon interaction,” Physical Review
B, vol. 71, no. 15, 2005.'
mla: 'Ahn, K. J., et al. “Resonance Fluorescence of Semiconductor Quantum Dots:
Signatures of the Electron-Phonon Interaction.” Physical Review B, vol.
71, no. 15, 153309, American Physical Society (APS), 2005, doi:10.1103/physrevb.71.153309.'
short: K.J. Ahn, J. Förstner, A. Knorr, Physical Review B 71 (2005).
date_created: 2018-08-29T09:21:21Z
date_updated: 2022-01-06T07:00:44Z
ddc:
- '530'
doi: 10.1103/physrevb.71.153309
extern: '1'
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-29T09:22:12Z
date_updated: 2018-08-29T09:22:12Z
file_id: '4261'
file_name: 2005 Ahn,Förstner,Knorr_Resonance fluorescence of semiconductor quantum
dots - Signatures of the electron-phonon interaction.pdf
file_size: 75068
relation: main_file
success: 1
file_date_updated: 2018-08-29T09:22:12Z
has_accepted_license: '1'
intvolume: ' 71'
issue: '15'
keyword:
- tet_topic_qd
language:
- iso: eng
publication: Physical Review B
publication_identifier:
issn:
- 1098-0121
- 1550-235X
publication_status: published
publisher: American Physical Society (APS)
status: public
title: 'Resonance fluorescence of semiconductor quantum dots: Signatures of the electron-phonon
interaction'
type: journal_article
user_id: '55706'
volume: 71
year: '2005'
...