---
_id: '4120'
abstract:
- lang: eng
text: "The intensity dependence of optically-induced injection currents in unbiased
GaAs semiconductor quantum wells grown in [110] direction is investigated theoretically
for a number of well widths. Our microscopic analysis is based\r\non a 14 x 14
band k . p method in combination with the multisubband semiconductor Bloch equations.
An oscillatory\r\ndependence of the injection current transients as function of
intensity and time is predicted and explained. It is demonstrated that optical
excitations involving different subbands and Rabi flopping are responsible for
this complex\r\ndynamics."
article_type: original
author:
- first_name: Michał
full_name: Pochwała, Michał
last_name: Pochwała
- 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: Pochwała M, Duc HT, Förstner J, Meier T. Intensity-dependent ultrafast dynamics
of injection currents in unbiased GaAs quantum wells. physica status solidi
(RRL) - Rapid Research Letters. 2011;5(3):119-121. doi:10.1002/pssr.201004529
apa: Pochwała, M., Duc, H. T., Förstner, J., & Meier, T. (2011). Intensity-dependent
ultrafast dynamics of injection currents in unbiased GaAs quantum wells. Physica
Status Solidi (RRL) - Rapid Research Letters, 5(3), 119–121. https://doi.org/10.1002/pssr.201004529
bibtex: '@article{Pochwała_Duc_Förstner_Meier_2011, title={Intensity-dependent ultrafast
dynamics of injection currents in unbiased GaAs quantum wells}, volume={5}, DOI={10.1002/pssr.201004529}, number={3},
journal={physica status solidi (RRL) - Rapid Research Letters}, publisher={Wiley},
author={Pochwała, Michał and Duc, Huynh Thanh and Förstner, Jens and Meier, Torsten},
year={2011}, pages={119–121} }'
chicago: 'Pochwała, Michał, Huynh Thanh Duc, Jens Förstner, and Torsten Meier. “Intensity-Dependent
Ultrafast Dynamics of Injection Currents in Unbiased GaAs Quantum Wells.” Physica
Status Solidi (RRL) - Rapid Research Letters 5, no. 3 (2011): 119–21. https://doi.org/10.1002/pssr.201004529.'
ieee: 'M. Pochwała, H. T. Duc, J. Förstner, and T. Meier, “Intensity-dependent ultrafast
dynamics of injection currents in unbiased GaAs quantum wells,” physica status
solidi (RRL) - Rapid Research Letters, vol. 5, no. 3, pp. 119–121, 2011, doi:
10.1002/pssr.201004529.'
mla: Pochwała, Michał, et al. “Intensity-Dependent Ultrafast Dynamics of Injection
Currents in Unbiased GaAs Quantum Wells.” Physica Status Solidi (RRL) - Rapid
Research Letters, vol. 5, no. 3, Wiley, 2011, pp. 119–21, doi:10.1002/pssr.201004529.
short: M. Pochwała, H.T. Duc, J. Förstner, T. Meier, Physica Status Solidi (RRL)
- Rapid Research Letters 5 (2011) 119–121.
date_created: 2018-08-27T09:25:39Z
date_updated: 2025-12-16T11:22:28Z
ddc:
- '530'
department:
- _id: '15'
- _id: '230'
- _id: '293'
- _id: '170'
- _id: '35'
- _id: '34'
- _id: '61'
doi: 10.1002/pssr.201004529
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-27T09:28:02Z
date_updated: 2018-08-27T09:28:02Z
file_id: '4121'
file_name: 2011 Pochwala,Duc,Förster,Meier_Intensity-dependent ultrafast dynamics
of injection currents in unbased GaAs quantum wells.pdf
file_size: 1267398
relation: main_file
success: 1
file_date_updated: 2018-08-27T09:28:02Z
has_accepted_license: '1'
intvolume: ' 5'
issue: '3'
keyword:
- tet_topic_qw
language:
- iso: eng
page: 119-121
publication: physica status solidi (RRL) - Rapid Research Letters
publication_identifier:
issn:
- 1862-6254
publication_status: published
publisher: Wiley
status: public
title: Intensity-dependent ultrafast dynamics of injection currents in unbiased GaAs
quantum wells
type: journal_article
user_id: '16199'
volume: 5
year: '2011'
...
---
_id: '4049'
abstract:
- lang: eng
text: "The injection of photocurrents by femtosecond laser pulses in (110)-orientedGaAs/AlGaAs
quantum wells is\r\ninvestigated theoretically and experimentally. The roomtemperature
measurements show an oscillatory dependence\r\nof the injection current amplitude
and direction on the excitation photon energy. Microscopic calculations using
the semiconductor Bloch equations that are set up on the basis of k.p band structure
calculations provide a detailed understanding of the experimental findings."
article_type: original
author:
- first_name: Huynh
full_name: Thanh Duc, Huynh
last_name: Thanh 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: Shekhar
full_name: Priyadarshi, Shekhar
last_name: Priyadarshi
- first_name: Ana Maria
full_name: Racu, Ana Maria
last_name: Racu
- first_name: Klaus
full_name: Pierz, Klaus
last_name: Pierz
- first_name: Uwe
full_name: Siegner, Uwe
last_name: Siegner
- first_name: Mark
full_name: Bieler, Mark
last_name: Bieler
citation:
ama: Thanh Duc H, Förstner J, Meier T, et al. Oscillatory excitation energy dependence
of injection currents in GaAs/AlGaAs quantum wells. physica status solidi (c).
2011;8(4):1137-1140. doi:10.1002/pssc.201000831
apa: Thanh Duc, H., Förstner, J., Meier, T., Priyadarshi, S., Racu, A. M., Pierz,
K., Siegner, U., & Bieler, M. (2011). Oscillatory excitation energy dependence
of injection currents in GaAs/AlGaAs quantum wells. Physica Status Solidi (c),
8(4), 1137–1140. https://doi.org/10.1002/pssc.201000831
bibtex: '@article{Thanh Duc_Förstner_Meier_Priyadarshi_Racu_Pierz_Siegner_Bieler_2011,
title={Oscillatory excitation energy dependence of injection currents in GaAs/AlGaAs
quantum wells}, volume={8}, DOI={10.1002/pssc.201000831},
number={4}, journal={physica status solidi (c)}, publisher={Wiley}, author={Thanh
Duc, Huynh and Förstner, Jens and Meier, Torsten and Priyadarshi, Shekhar and
Racu, Ana Maria and Pierz, Klaus and Siegner, Uwe and Bieler, Mark}, year={2011},
pages={1137–1140} }'
chicago: 'Thanh Duc, Huynh, Jens Förstner, Torsten Meier, Shekhar Priyadarshi, Ana
Maria Racu, Klaus Pierz, Uwe Siegner, and Mark Bieler. “Oscillatory Excitation
Energy Dependence of Injection Currents in GaAs/AlGaAs Quantum Wells.” Physica
Status Solidi (c) 8, no. 4 (2011): 1137–40. https://doi.org/10.1002/pssc.201000831.'
ieee: 'H. Thanh Duc et al., “Oscillatory excitation energy dependence of
injection currents in GaAs/AlGaAs quantum wells,” physica status solidi (c),
vol. 8, no. 4, pp. 1137–1140, 2011, doi: 10.1002/pssc.201000831.'
mla: Thanh Duc, Huynh, et al. “Oscillatory Excitation Energy Dependence of Injection
Currents in GaAs/AlGaAs Quantum Wells.” Physica Status Solidi (c), vol.
8, no. 4, Wiley, 2011, pp. 1137–40, doi:10.1002/pssc.201000831.
short: H. Thanh Duc, J. Förstner, T. Meier, S. Priyadarshi, A.M. Racu, K. Pierz,
U. Siegner, M. Bieler, Physica Status Solidi (c) 8 (2011) 1137–1140.
date_created: 2018-08-22T10:38:59Z
date_updated: 2025-12-16T11:21:35Z
ddc:
- '530'
department:
- _id: '15'
- _id: '293'
- _id: '230'
- _id: '170'
- _id: '35'
- _id: '34'
- _id: '61'
doi: 10.1002/pssc.201000831
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-22T10:41:43Z
date_updated: 2018-08-22T10:41:43Z
file_id: '4050'
file_name: 2011 Duc et al_Oscillatory excitation energy dependence of injection
currents in GaAs-AIGaAs quantum wells.pdf
file_size: 324789
relation: main_file
success: 1
file_date_updated: 2018-08-22T10:41:43Z
has_accepted_license: '1'
intvolume: ' 8'
issue: '4'
keyword:
- tet_topic_qw
language:
- iso: eng
page: 1137-1140
publication: physica status solidi (c)
publication_identifier:
issn:
- 1862-6351
publication_status: published
publisher: Wiley
status: public
title: Oscillatory excitation energy dependence of injection currents in GaAs/AlGaAs
quantum wells
type: journal_article
user_id: '16199'
volume: 8
year: '2011'
...
---
_id: '4118'
abstract:
- lang: eng
text: "We numerically investigate the coupling between circular resonators and study
strong light‐matter coupling of single as well as multiple circular resonators
to quantum‐mechanical resonators in two dimensional model simulations. For all
cases, the computed resonances of the coupled system as function of the detuning
show anti‐crossings.\r\n\r\nThe obtained mode splittings of coupled optical resonators
are strongly depending on distance and cluster in almost degenerate eigenstates
for large distances, as is known from coupled resonator optical waveguides. Vacuum
Rabi splitting is observed for a quantum dot strongly coupled to eigenmodes of
single perfectly cylindrical resonators. "
article_type: original
author:
- first_name: S.
full_name: Declair, S.
last_name: Declair
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Declair S, Meier T, Förstner J. Numerical investigation of the coupling between
microdisk modes and quantum dots. physica status solidi (c). 2011;8(4):1254-1257.
doi:10.1002/pssc.201000869
apa: Declair, S., Meier, T., & Förstner, J. (2011). Numerical investigation
of the coupling between microdisk modes and quantum dots. Physica Status Solidi
(c), 8(4), 1254–1257. https://doi.org/10.1002/pssc.201000869
bibtex: '@article{Declair_Meier_Förstner_2011, title={Numerical investigation of
the coupling between microdisk modes and quantum dots}, volume={8}, DOI={10.1002/pssc.201000869},
number={4}, journal={physica status solidi (c)}, publisher={Wiley}, author={Declair,
S. and Meier, Torsten and Förstner, Jens}, year={2011}, pages={1254–1257} }'
chicago: 'Declair, S., Torsten Meier, and Jens Förstner. “Numerical Investigation
of the Coupling between Microdisk Modes and Quantum Dots.” Physica Status Solidi
(c) 8, no. 4 (2011): 1254–57. https://doi.org/10.1002/pssc.201000869.'
ieee: 'S. Declair, T. Meier, and J. Förstner, “Numerical investigation of the coupling
between microdisk modes and quantum dots,” physica status solidi (c), vol.
8, no. 4, pp. 1254–1257, 2011, doi: 10.1002/pssc.201000869.'
mla: Declair, S., et al. “Numerical Investigation of the Coupling between Microdisk
Modes and Quantum Dots.” Physica Status Solidi (c), vol. 8, no. 4, Wiley,
2011, pp. 1254–57, doi:10.1002/pssc.201000869.
short: S. Declair, T. Meier, J. Förstner, Physica Status Solidi (c) 8 (2011) 1254–1257.
date_created: 2018-08-27T09:06:46Z
date_updated: 2025-12-16T11:22:02Z
ddc:
- '530'
department:
- _id: '15'
- _id: '230'
- _id: '293'
- _id: '170'
- _id: '35'
- _id: '34'
- _id: '61'
doi: 10.1002/pssc.201000869
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-27T09:07:57Z
date_updated: 2018-08-27T09:07:57Z
file_id: '4119'
file_name: 2011 Delcair,Meier,Förstner_Numerical investigation of the coupling between
microdisk modes and quantum dots.pdf
file_size: 281469
relation: main_file
success: 1
file_date_updated: 2018-08-27T09:07:57Z
has_accepted_license: '1'
intvolume: ' 8'
issue: '4'
keyword:
- tet_topic_phc
- tet_topic_microdisk
language:
- iso: eng
page: 1254-1257
publication: physica status solidi (c)
publication_identifier:
issn:
- 1862-6351
publication_status: published
publisher: Wiley
status: public
title: Numerical investigation of the coupling between microdisk modes and quantum
dots
type: journal_article
user_id: '16199'
volume: 8
year: '2011'
...
---
_id: '4040'
abstract:
- lang: eng
text: We numerically investigate the interaction dynamics of coupled cavities in
planar photonic crystal slabs in different configurations. The single cavity is
optimized for a long lifetime of the fundamental mode, reaching a Q-factor of
≈43, 000 using the method of gentle confinement. For pairs of cavities we consider
several configurations and present a setup with strongest coupling observable
as a line splitting of about 30 nm. Based on this configuration, setups with three
cavities are investigated.
article_type: original
author:
- first_name: S.
full_name: Declair, S.
last_name: Declair
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Declair S, Meier T, Zrenner A, Förstner J. Numerical analysis of coupled photonic
crystal cavities. Photonics and Nanostructures - Fundamentals and Applications.
2011;9(4):345-350. doi:10.1016/j.photonics.2011.04.012
apa: Declair, S., Meier, T., Zrenner, A., & Förstner, J. (2011). Numerical analysis
of coupled photonic crystal cavities. Photonics and Nanostructures - Fundamentals
and Applications, 9(4), 345–350. https://doi.org/10.1016/j.photonics.2011.04.012
bibtex: '@article{Declair_Meier_Zrenner_Förstner_2011, title={Numerical analysis
of coupled photonic crystal cavities}, volume={9}, DOI={10.1016/j.photonics.2011.04.012},
number={4}, journal={Photonics and Nanostructures - Fundamentals and Applications},
publisher={Elsevier BV}, author={Declair, S. and Meier, Torsten and Zrenner, Artur
and Förstner, Jens}, year={2011}, pages={345–350} }'
chicago: 'Declair, S., Torsten Meier, Artur Zrenner, and Jens Förstner. “Numerical
Analysis of Coupled Photonic Crystal Cavities.” Photonics and Nanostructures
- Fundamentals and Applications 9, no. 4 (2011): 345–50. https://doi.org/10.1016/j.photonics.2011.04.012.'
ieee: 'S. Declair, T. Meier, A. Zrenner, and J. Förstner, “Numerical analysis of
coupled photonic crystal cavities,” Photonics and Nanostructures - Fundamentals
and Applications, vol. 9, no. 4, pp. 345–350, 2011, doi: 10.1016/j.photonics.2011.04.012.'
mla: Declair, S., et al. “Numerical Analysis of Coupled Photonic Crystal Cavities.”
Photonics and Nanostructures - Fundamentals and Applications, vol. 9, no.
4, Elsevier BV, 2011, pp. 345–50, doi:10.1016/j.photonics.2011.04.012.
short: S. Declair, T. Meier, A. Zrenner, J. Förstner, Photonics and Nanostructures
- Fundamentals and Applications 9 (2011) 345–350.
date_created: 2018-08-22T09:56:30Z
date_updated: 2025-12-16T11:20:45Z
ddc:
- '530'
department:
- _id: '15'
- _id: '290'
- _id: '293'
- _id: '170'
- _id: '230'
- _id: '35'
- _id: '34'
- _id: '61'
doi: 10.1016/j.photonics.2011.04.012
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-22T09:58:08Z
date_updated: 2018-08-22T09:58:08Z
file_id: '4041'
file_name: 2011 Declair,Meier,Zrenner,Förstner_Numerical analysis of coupled photonic
crystal cavities.pdf
file_size: 617123
relation: main_file
success: 1
file_date_updated: 2018-08-22T09:58:08Z
has_accepted_license: '1'
intvolume: ' 9'
issue: '4'
keyword:
- tet_topic_phc
language:
- iso: eng
page: 345-350
publication: Photonics and Nanostructures - Fundamentals and Applications
publication_identifier:
issn:
- 1569-4410
publication_status: published
publisher: Elsevier BV
status: public
title: Numerical analysis of coupled photonic crystal cavities
type: journal_article
user_id: '16199'
volume: 9
year: '2011'
...
---
_id: '4044'
abstract:
- lang: eng
text: A simulation environment for metallic nanostructures based on the Discontinuous
Galerkin Time Domain method is presented. The model is used to compute the linear
and nonlinear optical response of split ring resonators and to study physical
mechanisms that contribute to second harmonic generation.
article_number: C1V89S1P041
article_type: original
author:
- first_name: Yevgen
full_name: Grynko, Yevgen
id: '26059'
last_name: Grynko
- 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: Grynko Y, Förstner J, Meier T. Application of the discontinous Galerkin time
domain method to the optics of metallic nanostructures. AAPP | Atti della Accademia
Peloritana dei Pericolanti. 2011;89(1). doi:10.1478/C1V89S1P041
apa: Grynko, Y., Förstner, J., & Meier, T. (2011). Application of the discontinous
Galerkin time domain method to the optics of metallic nanostructures. AAPP
| Atti Della Accademia Peloritana Dei Pericolanti, 89(1), Article C1V89S1P041.
https://doi.org/10.1478/C1V89S1P041
bibtex: '@article{Grynko_Förstner_Meier_2011, title={Application of the discontinous
Galerkin time domain method to the optics of metallic nanostructures}, volume={89},
DOI={10.1478/C1V89S1P041}, number={1C1V89S1P041},
journal={AAPP | Atti della Accademia Peloritana dei Pericolanti}, author={Grynko,
Yevgen and Förstner, Jens and Meier, Torsten}, year={2011} }'
chicago: Grynko, Yevgen, Jens Förstner, and Torsten Meier. “Application of the Discontinous
Galerkin Time Domain Method to the Optics of Metallic Nanostructures.” AAPP
| Atti Della Accademia Peloritana Dei Pericolanti 89, no. 1 (2011). https://doi.org/10.1478/C1V89S1P041.
ieee: 'Y. Grynko, J. Förstner, and T. Meier, “Application of the discontinous Galerkin
time domain method to the optics of metallic nanostructures,” AAPP | Atti della
Accademia Peloritana dei Pericolanti, vol. 89, no. 1, Art. no. C1V89S1P041,
2011, doi: 10.1478/C1V89S1P041.'
mla: Grynko, Yevgen, et al. “Application of the Discontinous Galerkin Time Domain
Method to the Optics of Metallic Nanostructures.” AAPP | Atti Della Accademia
Peloritana Dei Pericolanti, vol. 89, no. 1, C1V89S1P041, 2011, doi:10.1478/C1V89S1P041.
short: Y. Grynko, J. Förstner, T. Meier, AAPP | Atti Della Accademia Peloritana
Dei Pericolanti 89 (2011).
date_created: 2018-08-22T10:18:44Z
date_updated: 2025-12-16T11:21:11Z
ddc:
- '530'
department:
- _id: '15'
- _id: '293'
- _id: '170'
- _id: '230'
- _id: '35'
- _id: '34'
- _id: '61'
doi: 10.1478/C1V89S1P041
file:
- access_level: open_access
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-22T10:17:27Z
date_updated: 2018-09-04T19:11:52Z
file_id: '4045'
file_name: 2011 Grynko,Förstner,Meier_Application of the discontinous Galerkin time
domain method to the optics of metallic nanostructures.pdf
file_size: 258268
relation: main_file
file_date_updated: 2018-09-04T19:11:52Z
has_accepted_license: '1'
intvolume: ' 89'
issue: '1'
keyword:
- tet_topic_numerics
- tet_topic_shg
- tet_topic_meta
language:
- iso: eng
oa: '1'
publication: AAPP | Atti della Accademia Peloritana dei Pericolanti
publication_identifier:
issn:
- 1825-1242
publication_status: published
status: public
title: Application of the discontinous Galerkin time domain method to the optics of
metallic nanostructures
type: journal_article
urn: '40448'
user_id: '16199'
volume: 89
year: '2011'
...
---
_id: '4091'
abstract:
- lang: eng
text: 'We present a nonequilibrium ab initio method for calculating nonlinear and
nonlocal optical effects in metallic slabs with a thickness of several nanometers.
The numerical analysis is based on the full solution of the time‐dependent Kohn–Sham
equations for a jellium system and allows to study the optical response of metal
electrons subject to arbitrarily shaped intense light pulses. We find a strong
localization of the generated second‐harmonic current in the surface regions of
the slabs. '
article_type: original
author:
- first_name: Mathias
full_name: Wand, Mathias
last_name: Wand
- first_name: Arno
full_name: Schindlmayr, Arno
id: '458'
last_name: Schindlmayr
orcid: 0000-0002-4855-071X
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Wand M, Schindlmayr A, Meier T, Förstner J. Simulation of the ultrafast nonlinear
optical response of metal slabs. Physica Status Solidi B. 2011;248(4):887-891.
doi:10.1002/pssb.201001219
apa: Wand, M., Schindlmayr, A., Meier, T., & Förstner, J. (2011). Simulation
of the ultrafast nonlinear optical response of metal slabs. Physica Status
Solidi B, 248(4), 887–891. https://doi.org/10.1002/pssb.201001219
bibtex: '@article{Wand_Schindlmayr_Meier_Förstner_2011, title={Simulation of the
ultrafast nonlinear optical response of metal slabs}, volume={248}, DOI={10.1002/pssb.201001219},
number={4}, journal={Physica Status Solidi B}, publisher={Wiley-VCH}, author={Wand,
Mathias and Schindlmayr, Arno and Meier, Torsten and Förstner, Jens}, year={2011},
pages={887–891} }'
chicago: 'Wand, Mathias, Arno Schindlmayr, Torsten Meier, and Jens Förstner. “Simulation
of the Ultrafast Nonlinear Optical Response of Metal Slabs.” Physica Status
Solidi B 248, no. 4 (2011): 887–91. https://doi.org/10.1002/pssb.201001219.'
ieee: 'M. Wand, A. Schindlmayr, T. Meier, and J. Förstner, “Simulation of the ultrafast
nonlinear optical response of metal slabs,” Physica Status Solidi B, vol.
248, no. 4, pp. 887–891, 2011, doi: 10.1002/pssb.201001219.'
mla: Wand, Mathias, et al. “Simulation of the Ultrafast Nonlinear Optical Response
of Metal Slabs.” Physica Status Solidi B, vol. 248, no. 4, Wiley-VCH, 2011,
pp. 887–91, doi:10.1002/pssb.201001219.
short: M. Wand, A. Schindlmayr, T. Meier, J. Förstner, Physica Status Solidi B 248
(2011) 887–891.
date_created: 2018-08-23T09:53:38Z
date_updated: 2025-12-16T11:26:04Z
ddc:
- '530'
department:
- _id: '293'
- _id: '230'
- _id: '296'
- _id: '15'
- _id: '170'
- _id: '35'
- _id: '34'
- _id: '61'
doi: 10.1002/pssb.201001219
external_id:
isi:
- '000288856300020'
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-23T09:55:13Z
date_updated: 2020-08-30T15:01:30Z
description: © 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
file_id: '4092'
file_name: 2011 Wand,Schindlmayr,Meier,Förstner_Simulation of the ultrafast nonlinear
optical response of metal slabs.pdf
file_size: 739579
relation: main_file
title: Simulation of the ultrafast optical response of metal slabs
file_date_updated: 2020-08-30T15:01:30Z
has_accepted_license: '1'
intvolume: ' 248'
isi: '1'
issue: '4'
keyword:
- tet_topic_shg
language:
- iso: eng
page: 887-891
publication: Physica Status Solidi B
publication_identifier:
eissn:
- 1521-3951
issn:
- 0370-1972
publication_status: published
publisher: Wiley-VCH
quality_controlled: '1'
status: public
title: Simulation of the ultrafast nonlinear optical response of metal slabs
type: journal_article
user_id: '16199'
volume: 248
year: '2011'
...
---
_id: '4122'
abstract:
- lang: eng
text: 'We experimentally and theoretically investigate injection currents generated
by femtosecond single-color circularly-polarized laser pulses in (110)-oriented
GaAs quantum wells. The current measurements are performed by detecting the emitted
Terahertz radiation at room temperature. The microscopic theory is based on a
14 x 14 k • p band-structure calculation in combination with the multi-subband
semiconductor Bloch equations. For symmetric GaAs quantum wells grown in (110)
direction, an oscillatory dependence of the injection currents on the exciting
photon energy is obtained. The results of the microscopic theory are in good agreement
with the measurements. '
article_number: 79370U
author:
- first_name: H. T.
full_name: Duc, H. T.
last_name: Duc
- first_name: M.
full_name: Pochwala, M.
last_name: Pochwala
- 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.
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
citation:
ama: 'Duc HT, Pochwala M, Förstner J, et al. Injection currents in (110)-oriented
GaAs/AlGaAs quantum wells: recent progress in theory and experiment. In: Tsen
K-T, Song J-J, Betz M, Elezzabi AY, eds. Ultrafast Phenomena in Semiconductors
and Nanostructure Materials XV. Vol 7937. SPIE Proceedings. SPIE; 2011. doi:10.1117/12.876972'
apa: 'Duc, H. T., Pochwala, M., Förstner, J., Meier, T., Priyadarshi, S., Racu,
A. M., Pierz, K., Siegner, U., & Bieler, M. (2011). Injection currents in
(110)-oriented GaAs/AlGaAs quantum wells: recent progress in theory and experiment.
In K.-T. Tsen, J.-J. Song, M. Betz, & A. Y. Elezzabi (Eds.), Ultrafast
Phenomena in Semiconductors and Nanostructure Materials XV (No. 79370U; Vol.
7937). SPIE. https://doi.org/10.1117/12.876972'
bibtex: '@inproceedings{Duc_Pochwala_Förstner_Meier_Priyadarshi_Racu_Pierz_Siegner_Bieler_2011,
series={SPIE Proceedings}, title={Injection currents in (110)-oriented GaAs/AlGaAs
quantum wells: recent progress in theory and experiment}, volume={7937}, DOI={10.1117/12.876972}, number={79370U},
booktitle={Ultrafast Phenomena in Semiconductors and Nanostructure Materials XV},
publisher={SPIE}, author={Duc, H. T. and Pochwala, M. and Förstner, Jens and Meier,
Torsten and Priyadarshi, S. and Racu, A. M. and Pierz, K. and Siegner, U. and
Bieler, M.}, editor={Tsen, Kong-Thon and Song, Jin-Joo and Betz, Markus and Elezzabi,
Abdulhakem Y.}, year={2011}, collection={SPIE Proceedings} }'
chicago: 'Duc, H. T., M. Pochwala, Jens Förstner, Torsten Meier, S. Priyadarshi,
A. M. Racu, K. Pierz, U. Siegner, and M. Bieler. “Injection Currents in (110)-Oriented
GaAs/AlGaAs Quantum Wells: Recent Progress in Theory and Experiment.” In Ultrafast
Phenomena in Semiconductors and Nanostructure Materials XV, edited by Kong-Thon
Tsen, Jin-Joo Song, Markus Betz, and Abdulhakem Y. Elezzabi, Vol. 7937. SPIE Proceedings.
SPIE, 2011. https://doi.org/10.1117/12.876972.'
ieee: 'H. T. Duc et al., “Injection currents in (110)-oriented GaAs/AlGaAs
quantum wells: recent progress in theory and experiment,” in Ultrafast Phenomena
in Semiconductors and Nanostructure Materials XV, 2011, vol. 7937, doi: 10.1117/12.876972.'
mla: 'Duc, H. T., et al. “Injection Currents in (110)-Oriented GaAs/AlGaAs Quantum
Wells: Recent Progress in Theory and Experiment.” Ultrafast Phenomena in Semiconductors
and Nanostructure Materials XV, edited by Kong-Thon Tsen et al., vol. 7937,
79370U, SPIE, 2011, doi:10.1117/12.876972.'
short: 'H.T. Duc, M. Pochwala, J. Förstner, T. Meier, S. Priyadarshi, A.M. Racu,
K. Pierz, U. Siegner, M. Bieler, in: K.-T. Tsen, J.-J. Song, M. Betz, A.Y. Elezzabi
(Eds.), Ultrafast Phenomena in Semiconductors and Nanostructure Materials XV,
SPIE, 2011.'
date_created: 2018-08-27T09:32:36Z
date_updated: 2025-12-16T11:36:39Z
department:
- _id: '15'
- _id: '293'
- _id: '170'
- _id: '230'
- _id: '35'
- _id: '34'
- _id: '61'
doi: 10.1117/12.876972
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: ' 7937'
keyword:
- tet_topic_qw
language:
- iso: eng
publication: Ultrafast Phenomena in Semiconductors and Nanostructure Materials XV
publication_status: published
publisher: SPIE
series_title: SPIE Proceedings
status: public
title: 'Injection currents in (110)-oriented GaAs/AlGaAs quantum wells: recent progress
in theory and experiment'
type: conference
user_id: '16199'
volume: 7937
year: '2011'
...
---
_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: '4125'
abstract:
- lang: eng
text: We numerically investigate the behavior of Whispering Gallery Modes (WGMs)
in circularly shaped resonators like microdisks, with diameters in the range of
optical vacuum wavelengths. The microdisk is embedded in an uniaxial anisotropic
dielectric environment. By changing the optical anisotropy, one obtains spectral
tunability of the optical modes. The degree of tunability strongly depends on
the radial (azimuthal) mode order M (N). As the modes approach each other spectrally,
anticrossing is observed, leading to a rearrangement of the optical states.
article_type: original
author:
- first_name: S.
full_name: Declair, S.
last_name: Declair
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Declair S, Meier C, Meier T, Förstner J. Anticrossing of Whispering Gallery
Modes in microdisk resonators embedded in an anisotropic environment. Photonics
and Nanostructures - Fundamentals and Applications. 2010;8(4):273-277. doi:10.1016/j.photonics.2010.03.002
apa: Declair, S., Meier, C., Meier, T., & Förstner, J. (2010). Anticrossing
of Whispering Gallery Modes in microdisk resonators embedded in an anisotropic
environment. Photonics and Nanostructures - Fundamentals and Applications,
8(4), 273–277. https://doi.org/10.1016/j.photonics.2010.03.002
bibtex: '@article{Declair_Meier_Meier_Förstner_2010, title={Anticrossing of Whispering
Gallery Modes in microdisk resonators embedded in an anisotropic environment},
volume={8}, DOI={10.1016/j.photonics.2010.03.002},
number={4}, journal={Photonics and Nanostructures - Fundamentals and Applications},
publisher={Elsevier BV}, author={Declair, S. and Meier, Cedrik and Meier, Torsten
and Förstner, Jens}, year={2010}, pages={273–277} }'
chicago: 'Declair, S., Cedrik Meier, Torsten Meier, and Jens Förstner. “Anticrossing
of Whispering Gallery Modes in Microdisk Resonators Embedded in an Anisotropic
Environment.” Photonics and Nanostructures - Fundamentals and Applications
8, no. 4 (2010): 273–77. https://doi.org/10.1016/j.photonics.2010.03.002.'
ieee: 'S. Declair, C. Meier, T. Meier, and J. Förstner, “Anticrossing of Whispering
Gallery Modes in microdisk resonators embedded in an anisotropic environment,”
Photonics and Nanostructures - Fundamentals and Applications, vol. 8, no.
4, pp. 273–277, 2010, doi: 10.1016/j.photonics.2010.03.002.'
mla: Declair, S., et al. “Anticrossing of Whispering Gallery Modes in Microdisk
Resonators Embedded in an Anisotropic Environment.” Photonics and Nanostructures
- Fundamentals and Applications, vol. 8, no. 4, Elsevier BV, 2010, pp. 273–77,
doi:10.1016/j.photonics.2010.03.002.
short: S. Declair, C. Meier, T. Meier, J. Förstner, Photonics and Nanostructures
- Fundamentals and Applications 8 (2010) 273–277.
date_created: 2018-08-27T10:19:59Z
date_updated: 2025-12-16T11:23:48Z
ddc:
- '530'
department:
- _id: '15'
- _id: '230'
- _id: '293'
- _id: '287'
- _id: '35'
- _id: '170'
- _id: '35'
- _id: '34'
- _id: '61'
doi: 10.1016/j.photonics.2010.03.002
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-27T10:21:38Z
date_updated: 2018-08-27T10:21:38Z
file_id: '4126'
file_name: 2010 Declair,Meier C, Meier T, Förstner_Anticrossing of Whispering Gallery
Modes in microdisk resonators embedded in an anisotropic environment.pdf
file_size: 304758
relation: main_file
success: 1
file_date_updated: 2018-08-27T10:21:38Z
has_accepted_license: '1'
intvolume: ' 8'
issue: '4'
keyword:
- tet_topic_microdisk
language:
- iso: eng
page: 273-277
publication: Photonics and Nanostructures - Fundamentals and Applications
publication_identifier:
issn:
- 1569-4410
publication_status: published
publisher: Elsevier BV
status: public
title: Anticrossing of Whispering Gallery Modes in microdisk resonators embedded in
an anisotropic environment
type: journal_article
user_id: '16199'
volume: 8
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: '4167'
abstract:
- lang: eng
text: "The electromagnetic field in the vicinity of sharp edges needs a special
treatment in numeric calculation whenever accurate, fast converging results are
necessary. One of the fundamental works concerning field singularities has been
proposed in 1972 [1] and states that the electromagnetic energy density must be
integrable over any finite\r\ndomain, even if this domain contains singularities.
It is shown, that the magnetic field \x02H(\x03, ϕ) and electric field \x02E(\x03,
ϕ) are proportional to ∝ \x03(t−1) for \x03 → 0. The variable \x03 is the distance
to the edge and t has to fulfill the integrability condition and thus is restricted
to 0 < t < 1. This result is often used to reduce the error corresponding to the
singularity without increasing the numerical effort [2 - 5]. For this purpose,
a correction factor K is estimated by inserting the proportionality into the wave
equation. It is shown, that this method improves the accuracy of the result significantly,
however the order of convergence is often not studied. In [4] a method to modify
the material parameters in order to use analytic results to improve the numeric
calculation is presented. In this contribution we will - inspired by the scheme
given in [4] - develop a new method to estimate a correction factor for perfect
conducting materials (PEC) and demonstrate the improvement of the results compared
to the standard edge correction. Therefore analytic results (comparable to [1])
are consequently merged with the scheme in [4]. The main goal of this work is
the calculation of the second harmonic generation (SHG) in the wave response of
so-called metamaterials [6]. Frequently these structures\r\ncontain sharp metallic
edges with field singularities at the interfaces which have a strong impact on
the SHG signals. Thus, an accurate simulation of singularities is highly important.
However, the following approach can also be applied to many other setups, and
one of them is shown in the example below."
article_number: '11515155 '
author:
- first_name: C
full_name: Classen, C
last_name: Classen
- 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: R
full_name: Schuhmann, R
last_name: Schuhmann
citation:
ama: 'Classen C, Förstner J, Meier T, Schuhmann R. Enhanced FDTD edge correction
for nonlinear effects calculation. In: 2010 IEEE Antennas and Propagation Society
International Symposium. IEEE; 2010. doi:10.1109/aps.2010.5562017'
apa: Classen, C., Förstner, J., Meier, T., & Schuhmann, R. (2010). Enhanced
FDTD edge correction for nonlinear effects calculation. 2010 IEEE Antennas
and Propagation Society International Symposium, Article 11515155. 2010 IEEE
international Symposium Antennas, Toronto, ON, Canada. https://doi.org/10.1109/aps.2010.5562017
bibtex: '@inproceedings{Classen_Förstner_Meier_Schuhmann_2010, title={Enhanced FDTD
edge correction for nonlinear effects calculation}, DOI={10.1109/aps.2010.5562017},
number={11515155}, booktitle={2010 IEEE Antennas and Propagation Society International
Symposium}, publisher={IEEE}, author={Classen, C and Förstner, Jens and Meier,
Torsten and Schuhmann, R}, year={2010} }'
chicago: Classen, C, Jens Förstner, Torsten Meier, and R Schuhmann. “Enhanced FDTD
Edge Correction for Nonlinear Effects Calculation.” In 2010 IEEE Antennas and
Propagation Society International Symposium. IEEE, 2010. https://doi.org/10.1109/aps.2010.5562017.
ieee: 'C. Classen, J. Förstner, T. Meier, and R. Schuhmann, “Enhanced FDTD edge
correction for nonlinear effects calculation,” presented at the 2010 IEEE international
Symposium Antennas, Toronto, ON, Canada, 2010, doi: 10.1109/aps.2010.5562017.'
mla: Classen, C., et al. “Enhanced FDTD Edge Correction for Nonlinear Effects Calculation.”
2010 IEEE Antennas and Propagation Society International Symposium, 11515155,
IEEE, 2010, doi:10.1109/aps.2010.5562017.
short: 'C. Classen, J. Förstner, T. Meier, R. Schuhmann, in: 2010 IEEE Antennas
and Propagation Society International Symposium, IEEE, 2010.'
conference:
end_date: 2010-07-17
location: Toronto, ON, Canada
name: 2010 IEEE international Symposium Antennas
start_date: 2010-07-11
date_created: 2018-08-28T08:34:52Z
date_updated: 2025-12-16T12:35:39Z
ddc:
- '530'
department:
- _id: '61'
- _id: '15'
- _id: '293'
- _id: '170'
- _id: '230'
- _id: '35'
- _id: '34'
doi: 10.1109/aps.2010.5562017
file:
- access_level: open_access
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-28T08:36:44Z
date_updated: 2018-09-04T19:31:42Z
file_id: '4168'
file_name: 2010 Classen,Förstner, Meier T,Schuhmann_Enhanced FDTD edge correction
for nonlinear effects calculation.pdf
file_size: 209412
relation: main_file
file_date_updated: 2018-09-04T19:31:42Z
has_accepted_license: '1'
keyword:
- tet_topic_numerics
language:
- iso: eng
oa: '1'
publication: 2010 IEEE Antennas and Propagation Society International Symposium
publication_identifier:
isbn:
- '9781424449675'
- '9781424449682'
publication_status: published
publisher: IEEE
status: public
title: Enhanced FDTD edge correction for nonlinear effects calculation
type: conference
urn: '41677'
user_id: '16199'
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'
...