---
_id: '46278'
abstract:
- lang: eng
text: 'Site-controlled Ga droplets on AlGaAs substrates are fabricated using
area-selective deposition of Ga through apertures in a mask during molecular beam
epitaxy (MBE). The Ga droplets can be crystallized into GaAs quantum dots using
a crystallization step under As flux. In order to model the complex process, including
the masked deposition of the droplets and a reduction of their number during a
thermal annealing step, a multiscale kinetic Monte Carlo (mkMC) simulation of
self-assembled Ga droplet formation on AlGaAs is expanded for area-selective deposition.
The simulation has only two free model parameters: the activation energy for surface
diffusion and the activation energy for thermal escape of adatoms from a droplet.
Simulated droplet numbers within the opening of the aperture agree quantitatively
with the experimental results down to the perfect site-control, with one droplet
per aperture. However, the model parameters are different compared to those of
the self-assembled droplet growth. We attribute this to the presence of the mask
in close proximity to the surface, which modifies the local process temperature
and the As background. This approach also explains the dependence of the model
parameters on the size of the aperture.'
article_number: '466'
author:
- first_name: Stefan
full_name: Feddersen, Stefan
last_name: Feddersen
- first_name: Viktoryia
full_name: Zolatanosha, Viktoryia
last_name: Zolatanosha
- first_name: Ahmed
full_name: Alshaikh, Ahmed
last_name: Alshaikh
- first_name: Dirk
full_name: Reuter, Dirk
id: '37763'
last_name: Reuter
- first_name: Christian
full_name: Heyn, Christian
last_name: Heyn
citation:
ama: Feddersen S, Zolatanosha V, Alshaikh A, Reuter D, Heyn C. Modeling of Masked
Droplet Deposition for Site-Controlled Ga Droplets. Nanomaterials. 2023;13(3).
doi:10.3390/nano13030466
apa: Feddersen, S., Zolatanosha, V., Alshaikh, A., Reuter, D., & Heyn, C. (2023).
Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets. Nanomaterials,
13(3), Article 466. https://doi.org/10.3390/nano13030466
bibtex: '@article{Feddersen_Zolatanosha_Alshaikh_Reuter_Heyn_2023, title={Modeling
of Masked Droplet Deposition for Site-Controlled Ga Droplets}, volume={13}, DOI={10.3390/nano13030466}, number={3466},
journal={Nanomaterials}, publisher={MDPI AG}, author={Feddersen, Stefan and Zolatanosha,
Viktoryia and Alshaikh, Ahmed and Reuter, Dirk and Heyn, Christian}, year={2023}
}'
chicago: Feddersen, Stefan, Viktoryia Zolatanosha, Ahmed Alshaikh, Dirk Reuter,
and Christian Heyn. “Modeling of Masked Droplet Deposition for Site-Controlled
Ga Droplets.” Nanomaterials 13, no. 3 (2023). https://doi.org/10.3390/nano13030466.
ieee: 'S. Feddersen, V. Zolatanosha, A. Alshaikh, D. Reuter, and C. Heyn, “Modeling
of Masked Droplet Deposition for Site-Controlled Ga Droplets,” Nanomaterials,
vol. 13, no. 3, Art. no. 466, 2023, doi: 10.3390/nano13030466.'
mla: Feddersen, Stefan, et al. “Modeling of Masked Droplet Deposition for Site-Controlled
Ga Droplets.” Nanomaterials, vol. 13, no. 3, 466, MDPI AG, 2023, doi:10.3390/nano13030466.
short: S. Feddersen, V. Zolatanosha, A. Alshaikh, D. Reuter, C. Heyn, Nanomaterials
13 (2023).
date_created: 2023-08-03T11:13:28Z
date_updated: 2023-08-03T11:14:10Z
department:
- _id: '15'
- _id: '230'
doi: 10.3390/nano13030466
intvolume: ' 13'
issue: '3'
keyword:
- General Materials Science
- General Chemical Engineering
language:
- iso: eng
publication: Nanomaterials
publication_identifier:
issn:
- 2079-4991
publication_status: published
publisher: MDPI AG
status: public
title: Modeling of Masked Droplet Deposition for Site-Controlled Ga Droplets
type: journal_article
user_id: '42514'
volume: 13
year: '2023'
...
---
_id: '46277'
author:
- first_name: Benedikt
full_name: Sieland, Benedikt
last_name: Sieland
- first_name: Marcel
full_name: Stahn, Marcel
last_name: Stahn
- first_name: Roland
full_name: Schoch, Roland
last_name: Schoch
- first_name: Constantin
full_name: Daniliuc, Constantin
last_name: Daniliuc
- first_name: Sebastian
full_name: Spicher, Sebastian
last_name: Spicher
- first_name: Stefan
full_name: Grimme, Stefan
last_name: Grimme
- first_name: Andreas
full_name: Hansen, Andreas
last_name: Hansen
- first_name: Jan
full_name: Paradies, Jan
id: '53339'
last_name: Paradies
orcid: 0000-0002-3698-668X
citation:
ama: Sieland B, Stahn M, Schoch R, et al. Dispersion Energy‐Stabilized Boron and
Phosphorus Lewis Pairs. Angewandte Chemie International Edition. Published
online 2023. doi:10.1002/anie.202308752
apa: Sieland, B., Stahn, M., Schoch, R., Daniliuc, C., Spicher, S., Grimme, S.,
Hansen, A., & Paradies, J. (2023). Dispersion Energy‐Stabilized Boron and
Phosphorus Lewis Pairs. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.202308752
bibtex: '@article{Sieland_Stahn_Schoch_Daniliuc_Spicher_Grimme_Hansen_Paradies_2023,
title={Dispersion Energy‐Stabilized Boron and Phosphorus Lewis Pairs}, DOI={10.1002/anie.202308752}, journal={Angewandte
Chemie International Edition}, publisher={Wiley}, author={Sieland, Benedikt and
Stahn, Marcel and Schoch, Roland and Daniliuc, Constantin and Spicher, Sebastian
and Grimme, Stefan and Hansen, Andreas and Paradies, Jan}, year={2023} }'
chicago: Sieland, Benedikt, Marcel Stahn, Roland Schoch, Constantin Daniliuc, Sebastian
Spicher, Stefan Grimme, Andreas Hansen, and Jan Paradies. “Dispersion Energy‐Stabilized
Boron and Phosphorus Lewis Pairs.” Angewandte Chemie International Edition,
2023. https://doi.org/10.1002/anie.202308752.
ieee: 'B. Sieland et al., “Dispersion Energy‐Stabilized Boron and Phosphorus
Lewis Pairs,” Angewandte Chemie International Edition, 2023, doi: 10.1002/anie.202308752.'
mla: Sieland, Benedikt, et al. “Dispersion Energy‐Stabilized Boron and Phosphorus
Lewis Pairs.” Angewandte Chemie International Edition, Wiley, 2023, doi:10.1002/anie.202308752.
short: B. Sieland, M. Stahn, R. Schoch, C. Daniliuc, S. Spicher, S. Grimme, A. Hansen,
J. Paradies, Angewandte Chemie International Edition (2023).
date_created: 2023-08-03T09:00:33Z
date_updated: 2023-08-03T09:01:41Z
department:
- _id: '2'
- _id: '389'
doi: 10.1002/anie.202308752
keyword:
- General Chemistry
- Catalysis
language:
- iso: eng
publication: Angewandte Chemie International Edition
publication_identifier:
issn:
- 1433-7851
- 1521-3773
publication_status: published
publisher: Wiley
status: public
title: Dispersion Energy‐Stabilized Boron and Phosphorus Lewis Pairs
type: journal_article
user_id: '53339'
year: '2023'
...
---
_id: '46099'
author:
- first_name: Doris
full_name: Tophinke, Doris
id: '16277'
last_name: Tophinke
citation:
ama: 'Tophinke D. “Tankrabatt” und “Freiheitsenergie”. Wie der Blog “neusprech.org”
politische Euphemismen entlarvt. In: Feilke H, ed. Zwischen Fake und Fakt.
Vol 300. Praxis Deutsch. Friedrich Verlag; 2023:42–47.'
apa: Tophinke, D. (2023). “Tankrabatt” und “Freiheitsenergie”. Wie der Blog “neusprech.org”
politische Euphemismen entlarvt. In H. Feilke (Ed.), Zwischen Fake und Fakt
(Vol. 300, pp. 42–47). Friedrich Verlag.
bibtex: '@inbook{Tophinke_2023, place={Hannover}, series={Praxis Deutsch}, title={“Tankrabatt”
und “Freiheitsenergie”. Wie der Blog “neusprech.org” politische Euphemismen entlarvt},
volume={300}, booktitle={Zwischen Fake und Fakt}, publisher={Friedrich Verlag},
author={Tophinke, Doris}, editor={Feilke, Helmuth}, year={2023}, pages={42–47},
collection={Praxis Deutsch} }'
chicago: 'Tophinke, Doris. “‘Tankrabatt’ und ‘Freiheitsenergie’. Wie der Blog ‘neusprech.org’
politische Euphemismen entlarvt.” In Zwischen Fake und Fakt, edited by
Helmuth Feilke, 300:42–47. Praxis Deutsch. Hannover: Friedrich Verlag, 2023.'
ieee: 'D. Tophinke, “‘Tankrabatt’ und ‘Freiheitsenergie’. Wie der Blog ‘neusprech.org’
politische Euphemismen entlarvt,” in Zwischen Fake und Fakt, vol. 300,
H. Feilke, Ed. Hannover: Friedrich Verlag, 2023, pp. 42–47.'
mla: Tophinke, Doris. “‘Tankrabatt’ und ‘Freiheitsenergie’. Wie der Blog ‘neusprech.org’
politische Euphemismen entlarvt.” Zwischen Fake und Fakt, edited by Helmuth
Feilke, vol. 300, Friedrich Verlag, 2023, pp. 42–47.
short: 'D. Tophinke, in: H. Feilke (Ed.), Zwischen Fake und Fakt, Friedrich Verlag,
Hannover, 2023, pp. 42–47.'
date_created: 2023-07-19T13:29:28Z
date_updated: 2023-08-03T15:35:11Z
department:
- _id: '5'
- _id: '115'
editor:
- first_name: Helmuth
full_name: Feilke, Helmuth
last_name: Feilke
intvolume: ' 300'
language:
- iso: ger
page: 42–47
place: Hannover
publication: Zwischen Fake und Fakt
publication_status: published
publisher: Friedrich Verlag
series_title: Praxis Deutsch
status: public
title: '"Tankrabatt" und "Freiheitsenergie". Wie der Blog "neusprech.org" politische
Euphemismen entlarvt'
type: book_chapter
user_id: '16277'
volume: 300
year: '2023'
...
---
_id: '45673'
author:
- first_name: Marie-Luis
full_name: Merten, Marie-Luis
last_name: Merten
- first_name: Marcel
full_name: Wever, Marcel
last_name: Wever
- first_name: Doris
full_name: Tophinke, Doris
id: '16277'
last_name: Tophinke
- first_name: Michaela
full_name: Geierhos, Michaela
last_name: Geierhos
- first_name: Eyke
full_name: Hüllermeier, Eyke
last_name: Hüllermeier
citation:
ama: Merten M-L, Wever M, Tophinke D, Geierhos M, Hüllermeier E. Annotation uncertainty
in the context of grammatical change. International Journal of Corpus Linguistics.
Published online 2023. doi:https://doi.org/10.1075/ijcl.20113.mer
apa: Merten, M.-L., Wever, M., Tophinke, D., Geierhos, M., & Hüllermeier, E.
(2023). Annotation uncertainty in the context of grammatical change. International
Journal of Corpus Linguistics. https://doi.org/10.1075/ijcl.20113.mer
bibtex: '@article{Merten_Wever_Tophinke_Geierhos_Hüllermeier_2023, title={Annotation
uncertainty in the context of grammatical change}, DOI={https://doi.org/10.1075/ijcl.20113.mer},
journal={International Journal of Corpus Linguistics}, author={Merten, Marie-Luis
and Wever, Marcel and Tophinke, Doris and Geierhos, Michaela and Hüllermeier,
Eyke}, year={2023} }'
chicago: Merten, Marie-Luis, Marcel Wever, Doris Tophinke, Michaela Geierhos, and
Eyke Hüllermeier. “Annotation Uncertainty in the Context of Grammatical Change.”
International Journal of Corpus Linguistics, 2023. https://doi.org/10.1075/ijcl.20113.mer.
ieee: 'M.-L. Merten, M. Wever, D. Tophinke, M. Geierhos, and E. Hüllermeier, “Annotation
uncertainty in the context of grammatical change,” International Journal of
Corpus Linguistics, 2023, doi: https://doi.org/10.1075/ijcl.20113.mer.'
mla: Merten, Marie-Luis, et al. “Annotation Uncertainty in the Context of Grammatical
Change.” International Journal of Corpus Linguistics, 2023, doi:https://doi.org/10.1075/ijcl.20113.mer.
short: M.-L. Merten, M. Wever, D. Tophinke, M. Geierhos, E. Hüllermeier, International
Journal of Corpus Linguistics (2023).
date_created: 2023-06-20T14:12:37Z
date_updated: 2023-08-03T15:34:10Z
department:
- _id: '5'
- _id: '115'
doi: https://doi.org/10.1075/ijcl.20113.mer
language:
- iso: eng
project:
- _id: '39'
name: 'InterGramm: Interaktive Grammatikanalyse historischer Texte: Adaptive Annotationsverfahren
zur Erschließung des Sprachausbaus im Mittelniederdeutschen'
publication: International Journal of Corpus Linguistics
publication_status: published
status: public
title: Annotation uncertainty in the context of grammatical change
type: journal_article
user_id: '16277'
year: '2023'
...
---
_id: '45780'
author:
- first_name: Alexander
full_name: Tornede, Alexander
id: '38209'
last_name: Tornede
citation:
ama: 'Tornede A. Advanced Algorithm Selection with Machine Learning: Handling
Large Algorithm Sets, Learning From Censored Data, and Simplyfing Meta Level Decisions.;
2023. doi:10.17619/UNIPB/1-1780
'
apa: 'Tornede, A. (2023). Advanced Algorithm Selection with Machine Learning:
Handling Large Algorithm Sets, Learning From Censored Data, and Simplyfing Meta
Level Decisions. https://doi.org/10.17619/UNIPB/1-1780
'
bibtex: '@book{Tornede_2023, title={Advanced Algorithm Selection with Machine Learning:
Handling Large Algorithm Sets, Learning From Censored Data, and Simplyfing Meta
Level Decisions}, DOI={10.17619/UNIPB/1-1780
}, author={Tornede, Alexander}, year={2023} }'
chicago: 'Tornede, Alexander. Advanced Algorithm Selection with Machine Learning:
Handling Large Algorithm Sets, Learning From Censored Data, and Simplyfing Meta
Level Decisions, 2023. https://doi.org/10.17619/UNIPB/1-1780
.'
ieee: 'A. Tornede, Advanced Algorithm Selection with Machine Learning: Handling
Large Algorithm Sets, Learning From Censored Data, and Simplyfing Meta Level Decisions.
2023.'
mla: 'Tornede, Alexander. Advanced Algorithm Selection with Machine Learning:
Handling Large Algorithm Sets, Learning From Censored Data, and Simplyfing Meta
Level Decisions. 2023, doi:10.17619/UNIPB/1-1780 .'
short: 'A. Tornede, Advanced Algorithm Selection with Machine Learning: Handling
Large Algorithm Sets, Learning From Censored Data, and Simplyfing Meta Level Decisions,
2023.'
date_created: 2023-06-27T05:20:14Z
date_updated: 2023-08-04T06:01:49Z
ddc:
- '006'
department:
- _id: '355'
doi: '10.17619/UNIPB/1-1780 '
file:
- access_level: open_access
content_type: application/pdf
creator: ahetzer
date_created: 2023-07-24T08:40:35Z
date_updated: 2023-07-24T08:42:01Z
file_id: '46118'
file_name: dissertation_alexander_tornede_final_publishing_compressed.pdf
file_size: 4300633
relation: main_file
title: ' Advanced Algorithm Selection with Machine Learning: Handling Large Algorithm
Sets, Learning From Censored Data, and Simplyfing Meta Level Decisions'
file_date_updated: 2023-07-24T08:42:01Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
project:
- _id: '10'
grant_number: '160364472'
name: 'SFB 901 - B2: Konfiguration und Bewertung (B02)'
- _id: '3'
name: 'SFB 901 - B: SFB 901 - Project Area B'
- _id: '1'
grant_number: '160364472'
name: 'SFB 901: SFB 901: On-The-Fly Computing - Individualisierte IT-Dienstleistungen
in dynamischen Märkten '
status: public
supervisor:
- first_name: Eyke
full_name: Hüllermeier, Eyke
last_name: Hüllermeier
title: 'Advanced Algorithm Selection with Machine Learning: Handling Large Algorithm
Sets, Learning From Censored Data, and Simplyfing Meta Level Decisions'
type: dissertation
user_id: '15504'
year: '2023'
...
---
_id: '46296'
author:
- first_name: Clarissa
full_name: Spiess-Bru, Clarissa
last_name: Spiess-Bru
citation:
ama: Spiess-Bru C. Information Asymmetry and Gendered Behavior in Organizations
and Digital Markets.; 2023.
apa: Spiess-Bru, C. (2023). Information Asymmetry and Gendered Behavior in Organizations
and Digital Markets.
bibtex: '@book{Spiess-Bru_2023, title={Information Asymmetry and Gendered Behavior
in Organizations and Digital Markets}, author={Spiess-Bru, Clarissa}, year={2023}
}'
chicago: Spiess-Bru, Clarissa. Information Asymmetry and Gendered Behavior in
Organizations and Digital Markets, 2023.
ieee: C. Spiess-Bru, Information Asymmetry and Gendered Behavior in Organizations
and Digital Markets. 2023.
mla: Spiess-Bru, Clarissa. Information Asymmetry and Gendered Behavior in Organizations
and Digital Markets. 2023.
short: C. Spiess-Bru, Information Asymmetry and Gendered Behavior in Organizations
and Digital Markets, 2023.
date_created: 2023-08-04T05:59:00Z
date_updated: 2023-08-04T05:59:12Z
language:
- iso: eng
project:
- _id: '1'
grant_number: '160364472'
name: 'SFB 901: SFB 901: On-The-Fly Computing - Individualisierte IT-Dienstleistungen
in dynamischen Märkten '
- _id: '2'
name: 'SFB 901 - A: SFB 901 - Project Area A'
- _id: '8'
grant_number: '160364472'
name: 'SFB 901 - A4: SFB 901 - Empirische Analysen in Märkten für OTF Dienstleistungen
(Subproject A4)'
status: public
supervisor:
- first_name: Bernd
full_name: Frick, Bernd
id: '16019'
last_name: Frick
title: Information Asymmetry and Gendered Behavior in Organizations and Digital Markets
type: dissertation
user_id: '15504'
year: '2023'
...
---
_id: '45661'
abstract:
- lang: eng
text: "Effect chain modelling is a method for creating information\r\nmodels for
impact analyses of changes in system elements. For\r\nthe estimation of change
propagation, dependencies between\r\nrequirements must be detected. The high number
of require-\r\nment dependencies in the engineering of complex technical\r\nsystems
results in the need for automation. In a study, it was\r\nshown that transformer
models (BERT) are suitable for the\r\nautomated dependency analysis of requirements.
However,\r\nthere are currently deficits in the applicability of the models\r\nfor
different projects without an extensive and heterogeneous\r\ntraining database.
This paper investigates how active learning\r\ncan be used to train BERT models
(active-BERT) in order to\r\nincrease the performance of the models for classifying
requi-\r\nrement dependencies of projects with heterogeneous require-\r\nments.
The results show that the performance of the models\r\nincreases significantly
through active learning. Through active-\r\nBERT, engineers are enabled to model
effect chains efficiently\r\nand to handle requirement changes effectively."
author:
- first_name: Iris
full_name: Gräßler, Iris
id: '47565'
last_name: Gräßler
orcid: 0000-0001-5765-971X
- first_name: Daniel
full_name: Preuß, Daniel
id: '40253'
last_name: Preuß
citation:
ama: 'Gräßler I, Preuß D. Automatisierte Abhängigkeitsanalyse von Anforderungen
zur Wirkkettenmodellierung. In: Hölzle K, Kreimeyer M, Roth D, Maier T, Riedel
O, eds. Stuttgarter Symposium Für Produktentwicklung SSP 2023. Fraunhofer
IAO; 2023.'
apa: Gräßler, I., & Preuß, D. (2023). Automatisierte Abhängigkeitsanalyse von
Anforderungen zur Wirkkettenmodellierung. In K. Hölzle, M. Kreimeyer, D. Roth,
T. Maier, & O. Riedel (Eds.), Stuttgarter Symposium für Produktentwicklung
SSP 2023. Fraunhofer IAO.
bibtex: '@inproceedings{Gräßler_Preuß_2023, place={Stuttgart}, title={Automatisierte
Abhängigkeitsanalyse von Anforderungen zur Wirkkettenmodellierung}, booktitle={Stuttgarter
Symposium für Produktentwicklung SSP 2023}, publisher={Fraunhofer IAO}, author={Gräßler,
Iris and Preuß, Daniel}, editor={Hölzle, Katharina and Kreimeyer, Matthias and
Roth, Daniel and Maier, Thomas and Riedel, Oliver}, year={2023} }'
chicago: 'Gräßler, Iris, and Daniel Preuß. “Automatisierte Abhängigkeitsanalyse
von Anforderungen Zur Wirkkettenmodellierung.” In Stuttgarter Symposium Für
Produktentwicklung SSP 2023, edited by Katharina Hölzle, Matthias Kreimeyer,
Daniel Roth, Thomas Maier, and Oliver Riedel. Stuttgart: Fraunhofer IAO, 2023.'
ieee: I. Gräßler and D. Preuß, “Automatisierte Abhängigkeitsanalyse von Anforderungen
zur Wirkkettenmodellierung,” in Stuttgarter Symposium für Produktentwicklung
SSP 2023, Stuttgart, 2023.
mla: Gräßler, Iris, and Daniel Preuß. “Automatisierte Abhängigkeitsanalyse von Anforderungen
Zur Wirkkettenmodellierung.” Stuttgarter Symposium Für Produktentwicklung SSP
2023, edited by Katharina Hölzle et al., Fraunhofer IAO, 2023.
short: 'I. Gräßler, D. Preuß, in: K. Hölzle, M. Kreimeyer, D. Roth, T. Maier, O.
Riedel (Eds.), Stuttgarter Symposium Für Produktentwicklung SSP 2023, Fraunhofer
IAO, Stuttgart, 2023.'
conference:
end_date: 2023-05-25
location: Stuttgart
name: Stuttgarter Symposium für Produktentwicklung SSP 2023
start_date: 2023-05-25
date_created: 2023-06-19T08:58:35Z
date_updated: 2023-08-07T17:16:42Z
department:
- _id: '152'
editor:
- first_name: Katharina
full_name: Hölzle, Katharina
last_name: Hölzle
- first_name: Matthias
full_name: Kreimeyer, Matthias
last_name: Kreimeyer
- first_name: Daniel
full_name: Roth, Daniel
last_name: Roth
- first_name: Thomas
full_name: Maier, Thomas
last_name: Maier
- first_name: Oliver
full_name: Riedel, Oliver
last_name: Riedel
language:
- iso: eng
place: Stuttgart
publication: Stuttgarter Symposium für Produktentwicklung SSP 2023
publication_identifier:
issn:
- 2364-4885
publication_status: published
publisher: Fraunhofer IAO
quality_controlled: '1'
status: public
title: Automatisierte Abhängigkeitsanalyse von Anforderungen zur Wirkkettenmodellierung
type: conference
user_id: '40253'
year: '2023'
...
---
_id: '40982'
abstract:
- lang: eng
text: Effective photoinduced charge transfer makes molecular bimetallic assemblies
attractive for applications as active light induced proton reduction systems.
For a more sustainable future, development of competitive base metal dyads is
mandatory. However, the electron transfer mechanisms from the photosensitizer
to the proton reduction catalyst in base metal dyads remain so far unexplored.
We study a Fe-Co dyad that exhibits photocatalytic H2 production activity using
femtosecond X-ray emission spectroscopy, complemented by ultrafast optical spectroscopy
and theoretical time-dependent DFT calculations, to understand the electronic
and structural dynamics after photoexcitation and during the subsequent charge
transfer process from the FeII photosensitizer to the cobaloxime catalyst. Using
this novel approach, the simultaneous measurement of the transient Kalpha X-ray
emission at the iron and cobalt K-edges in a two-colour experiment is enabled
making it possible to correlate the excited state dynamics to the electron transfer
processes. The methodology, therefore, provides a clear and direct spectroscopic
evidence of the Fe->Co electron transfer responsible for the proton reduction
activity.
author:
- first_name: Michał
full_name: Nowakowski, Michał
id: '78878'
last_name: Nowakowski
orcid: 0000-0002-3734-7011
- first_name: Marina
full_name: Huber-Gedert, Marina
id: '38352'
last_name: Huber-Gedert
- first_name: Hossam
full_name: Elgabarty, Hossam
id: '60250'
last_name: Elgabarty
orcid: 0000-0002-4945-1481
- first_name: Jacek
full_name: Kubicki, Jacek
last_name: Kubicki
- first_name: Ahmet
full_name: Kertem, Ahmet
last_name: Kertem
- first_name: Natalia
full_name: Lindner, Natalia
last_name: Lindner
- first_name: Dimitry
full_name: Khakhulin, Dimitry
last_name: Khakhulin
- first_name: Frederico Alves
full_name: Lima, Frederico Alves
last_name: Lima
- first_name: Tae-Kyu
full_name: Choi, Tae-Kyu
last_name: Choi
- first_name: Mykola
full_name: Biednov, Mykola
last_name: Biednov
- first_name: Natalia
full_name: Piergies, Natalia
last_name: Piergies
- first_name: Peter
full_name: Zalden, Peter
last_name: Zalden
- first_name: Katerina
full_name: Kubicek, Katerina
last_name: Kubicek
- first_name: Angel
full_name: Rodriguez-Fernandez, Angel
last_name: Rodriguez-Fernandez
- first_name: Mohammad Alaraby
full_name: Salem, Mohammad Alaraby
last_name: Salem
- first_name: Thomas
full_name: Kühne, Thomas
id: '49079'
last_name: Kühne
- first_name: Wojciech
full_name: Gawelda, Wojciech
last_name: Gawelda
- first_name: Matthias
full_name: Bauer, Matthias
id: '47241'
last_name: Bauer
orcid: 0000-0002-9294-6076
citation:
ama: Nowakowski M, Huber-Gedert M, Elgabarty H, et al. Ultrafast two-colour X-ray
emission spectroscopy reveals excited state landscape in a base metal dyad. arxiv.
Published online 2023.
apa: Nowakowski, M., Huber-Gedert, M., Elgabarty, H., Kubicki, J., Kertem, A., Lindner,
N., Khakhulin, D., Lima, F. A., Choi, T.-K., Biednov, M., Piergies, N., Zalden,
P., Kubicek, K., Rodriguez-Fernandez, A., Salem, M. A., Kühne, T., Gawelda, W.,
& Bauer, M. (2023). Ultrafast two-colour X-ray emission spectroscopy reveals
excited state landscape in a base metal dyad. In arxiv.
bibtex: '@article{Nowakowski_Huber-Gedert_Elgabarty_Kubicki_Kertem_Lindner_Khakhulin_Lima_Choi_Biednov_et
al._2023, title={Ultrafast two-colour X-ray emission spectroscopy reveals excited
state landscape in a base metal dyad}, journal={arxiv}, author={Nowakowski, Michał
and Huber-Gedert, Marina and Elgabarty, Hossam and Kubicki, Jacek and Kertem,
Ahmet and Lindner, Natalia and Khakhulin, Dimitry and Lima, Frederico Alves and
Choi, Tae-Kyu and Biednov, Mykola and et al.}, year={2023} }'
chicago: Nowakowski, Michał, Marina Huber-Gedert, Hossam Elgabarty, Jacek Kubicki,
Ahmet Kertem, Natalia Lindner, Dimitry Khakhulin, et al. “Ultrafast Two-Colour
X-Ray Emission Spectroscopy Reveals Excited State Landscape in a Base Metal Dyad.”
Arxiv, 2023.
ieee: M. Nowakowski et al., “Ultrafast two-colour X-ray emission spectroscopy
reveals excited state landscape in a base metal dyad,” arxiv. 2023.
mla: Nowakowski, Michał, et al. “Ultrafast Two-Colour X-Ray Emission Spectroscopy
Reveals Excited State Landscape in a Base Metal Dyad.” Arxiv, 2023.
short: M. Nowakowski, M. Huber-Gedert, H. Elgabarty, J. Kubicki, A. Kertem, N. Lindner,
D. Khakhulin, F.A. Lima, T.-K. Choi, M. Biednov, N. Piergies, P. Zalden, K. Kubicek,
A. Rodriguez-Fernandez, M.A. Salem, T. Kühne, W. Gawelda, M. Bauer, Arxiv (2023).
date_created: 2023-01-30T16:08:46Z
date_updated: 2023-08-09T08:58:46Z
department:
- _id: '35'
- _id: '306'
language:
- iso: eng
publication: arxiv
status: public
title: Ultrafast two-colour X-ray emission spectroscopy reveals excited state landscape
in a base metal dyad
type: preprint
user_id: '48467'
year: '2023'
...
---
_id: '29240'
abstract:
- lang: eng
text: "The principle of least action is one of the most fundamental physical principle.
It says that among all possible motions connecting two points in a phase space,
the system will exhibit those motions which extremise an action functional. Many
qualitative features of dynamical systems, such as the presence of conservation
laws and energy balance equations, are related to the existence of an action functional.
Incorporating variational structure into learning algorithms for dynamical systems
is, therefore, crucial in order to make sure that the learned model shares important
features with the exact physical system. In this paper we show how to incorporate
variational principles into trajectory predictions of learned dynamical systems.
The novelty of this work is that (1) our technique relies only on discrete position
data of observed trajectories. Velocities or conjugate momenta do not need to
be observed or approximated and no prior knowledge about the form of the variational
principle is assumed. Instead, they are recovered using backward error analysis.
(2) Moreover, our technique compensates discretisation errors when trajectories
are computed from the learned system. This is important when moderate to large
step-sizes are used and high accuracy is required. For this,\r\nwe introduce and
rigorously analyse the concept of inverse modified Lagrangians by developing an
inverse version of variational backward error analysis. (3) Finally, we introduce
a method to perform system identification from position observations only, based
on variational backward error analysis."
article_type: original
author:
- first_name: Sina
full_name: Ober-Blöbaum, Sina
id: '16494'
last_name: Ober-Blöbaum
- first_name: Christian
full_name: Offen, Christian
id: '85279'
last_name: Offen
orcid: 0000-0002-5940-8057
citation:
ama: Ober-Blöbaum S, Offen C. Variational Learning of Euler–Lagrange Dynamics from
Data. Journal of Computational and Applied Mathematics. 2023;421:114780.
doi:10.1016/j.cam.2022.114780
apa: Ober-Blöbaum, S., & Offen, C. (2023). Variational Learning of Euler–Lagrange
Dynamics from Data. Journal of Computational and Applied Mathematics, 421,
114780. https://doi.org/10.1016/j.cam.2022.114780
bibtex: '@article{Ober-Blöbaum_Offen_2023, title={Variational Learning of Euler–Lagrange
Dynamics from Data}, volume={421}, DOI={10.1016/j.cam.2022.114780},
journal={Journal of Computational and Applied Mathematics}, publisher={Elsevier},
author={Ober-Blöbaum, Sina and Offen, Christian}, year={2023}, pages={114780}
}'
chicago: 'Ober-Blöbaum, Sina, and Christian Offen. “Variational Learning of Euler–Lagrange
Dynamics from Data.” Journal of Computational and Applied Mathematics 421
(2023): 114780. https://doi.org/10.1016/j.cam.2022.114780.'
ieee: 'S. Ober-Blöbaum and C. Offen, “Variational Learning of Euler–Lagrange Dynamics
from Data,” Journal of Computational and Applied Mathematics, vol. 421,
p. 114780, 2023, doi: 10.1016/j.cam.2022.114780.'
mla: Ober-Blöbaum, Sina, and Christian Offen. “Variational Learning of Euler–Lagrange
Dynamics from Data.” Journal of Computational and Applied Mathematics,
vol. 421, Elsevier, 2023, p. 114780, doi:10.1016/j.cam.2022.114780.
short: S. Ober-Blöbaum, C. Offen, Journal of Computational and Applied Mathematics
421 (2023) 114780.
date_created: 2022-01-11T13:24:00Z
date_updated: 2023-08-10T08:42:39Z
ddc:
- '510'
department:
- _id: '636'
doi: 10.1016/j.cam.2022.114780
external_id:
arxiv:
- '2112.12619'
file:
- access_level: open_access
content_type: application/pdf
creator: coffen
date_created: 2022-06-28T15:25:50Z
date_updated: 2022-06-28T15:25:50Z
description: |-
The principle of least action is one of the most fundamental physical principle. It says that among all possible motions
connecting two points in a phase space, the system will exhibit those motions which extremise an action functional.
Many qualitative features of dynamical systems, such as the presence of conservation laws and energy balance equa-
tions, are related to the existence of an action functional. Incorporating variational structure into learning algorithms
for dynamical systems is, therefore, crucial in order to make sure that the learned model shares important features
with the exact physical system. In this paper we show how to incorporate variational principles into trajectory predic-
tions of learned dynamical systems. The novelty of this work is that (1) our technique relies only on discrete position
data of observed trajectories. Velocities or conjugate momenta do not need to be observed or approximated and no
prior knowledge about the form of the variational principle is assumed. Instead, they are recovered using backward
error analysis. (2) Moreover, our technique compensates discretisation errors when trajectories are computed from the
learned system. This is important when moderate to large step-sizes are used and high accuracy is required. For this,
we introduce and rigorously analyse the concept of inverse modified Lagrangians by developing an inverse version of
variational backward error analysis. (3) Finally, we introduce a method to perform system identification from position
observations only, based on variational backward error analysis.
file_id: '32274'
file_name: ShadowLagrangian_revision1_journal_style_arxiv.pdf
file_size: 3640770
relation: main_file
title: Variational Learning of Euler–Lagrange Dynamics from Data
file_date_updated: 2022-06-28T15:25:50Z
has_accepted_license: '1'
intvolume: ' 421'
keyword:
- Lagrangian learning
- variational backward error analysis
- modified Lagrangian
- variational integrators
- physics informed learning
language:
- iso: eng
oa: '1'
page: '114780'
publication: Journal of Computational and Applied Mathematics
publication_identifier:
issn:
- 0377-0427
publication_status: epub_ahead
publisher: Elsevier
quality_controlled: '1'
related_material:
link:
- relation: software
url: https://github.com/Christian-Offen/LagrangianShadowIntegration
status: public
title: Variational Learning of Euler–Lagrange Dynamics from Data
type: journal_article
user_id: '85279'
volume: 421
year: '2023'
...
---
_id: '29236'
abstract:
- lang: eng
text: The numerical solution of an ordinary differential equation can be interpreted
as the exact solution of a nearby modified equation. Investigating the behaviour
of numerical solutions by analysing the modified equation is known as backward
error analysis. If the original and modified equation share structural properties,
then the exact and approximate solution share geometric features such as the existence
of conserved quantities. Conjugate symplectic methods preserve a modified symplectic
form and a modified Hamiltonian when applied to a Hamiltonian system. We show
how a blended version of variational and symplectic techniques can be used to
compute modified symplectic and Hamiltonian structures. In contrast to other approaches,
our backward error analysis method does not rely on an ansatz but computes the
structures systematically, provided that a variational formulation of the method
is known. The technique is illustrated on the example of symmetric linear multistep
methods with matrix coefficients.
article_type: original
author:
- first_name: Robert
full_name: McLachlan, Robert
last_name: McLachlan
- first_name: Christian
full_name: Offen, Christian
id: '85279'
last_name: Offen
orcid: 0000-0002-5940-8057
citation:
ama: McLachlan R, Offen C. Backward error analysis for conjugate symplectic methods.
Journal of Geometric Mechanics. 2023;15(1):98-115. doi:10.3934/jgm.2023005
apa: McLachlan, R., & Offen, C. (2023). Backward error analysis for conjugate
symplectic methods. Journal of Geometric Mechanics, 15(1), 98–115.
https://doi.org/10.3934/jgm.2023005
bibtex: '@article{McLachlan_Offen_2023, title={Backward error analysis for conjugate
symplectic methods}, volume={15}, DOI={10.3934/jgm.2023005},
number={1}, journal={Journal of Geometric Mechanics}, publisher={AIMS Press},
author={McLachlan, Robert and Offen, Christian}, year={2023}, pages={98–115} }'
chicago: 'McLachlan, Robert, and Christian Offen. “Backward Error Analysis for Conjugate
Symplectic Methods.” Journal of Geometric Mechanics 15, no. 1 (2023): 98–115.
https://doi.org/10.3934/jgm.2023005.'
ieee: 'R. McLachlan and C. Offen, “Backward error analysis for conjugate symplectic
methods,” Journal of Geometric Mechanics, vol. 15, no. 1, pp. 98–115, 2023,
doi: 10.3934/jgm.2023005.'
mla: McLachlan, Robert, and Christian Offen. “Backward Error Analysis for Conjugate
Symplectic Methods.” Journal of Geometric Mechanics, vol. 15, no. 1, AIMS
Press, 2023, pp. 98–115, doi:10.3934/jgm.2023005.
short: R. McLachlan, C. Offen, Journal of Geometric Mechanics 15 (2023) 98–115.
date_created: 2022-01-11T12:48:39Z
date_updated: 2023-08-10T08:40:30Z
ddc:
- '510'
department:
- _id: '636'
doi: 10.3934/jgm.2023005
external_id:
arxiv:
- '2201.03911'
file:
- access_level: open_access
content_type: application/pdf
creator: coffen
date_created: 2022-08-12T16:48:59Z
date_updated: 2022-08-12T16:48:59Z
description: The numerical solution of an ordinary differential equation can be
interpreted as the exact solution of a nearby modified equation. Investigating
the behaviour of numerical solutions by analysing the modified equation is known
as backward error analysis. If the original and modified equation share structural
properties, then the exact and approximate solution share geometric features such
as the existence of conserved quantities. Conjugate symplectic methods preserve
a modified symplectic form and a modified Hamiltonian when applied to a Hamiltonian
system. We show how a blended version of variational and symplectic techniques
can be used to compute modified symplectic and Hamiltonian structures. In contrast
to other approaches, our backward error analysis method does not rely on an ansatz
but computes the structures systematically, provided that a variational formulation
of the method is known. The technique is illustrated on the example of symmetric
linear multistep methods with matrix coefficients.
file_id: '32801'
file_name: BEA_MultiStep_Matrix.pdf
file_size: 827030
relation: main_file
title: Backward error analysis for conjugate symplectic methods
file_date_updated: 2022-08-12T16:48:59Z
has_accepted_license: '1'
intvolume: ' 15'
issue: '1'
keyword:
- variational integrators
- backward error analysis
- Euler--Lagrange equations
- multistep methods
- conjugate symplectic methods
language:
- iso: eng
oa: '1'
page: 98-115
publication: Journal of Geometric Mechanics
publication_status: published
publisher: AIMS Press
quality_controlled: '1'
related_material:
link:
- relation: software
url: https://github.com/Christian-Offen/BEAConjugateSymplectic
status: public
title: Backward error analysis for conjugate symplectic methods
type: journal_article
user_id: '85279'
volume: 15
year: '2023'
...
---
_id: '37654'
abstract:
- lang: eng
text: "Recently, Hamiltonian neural networks (HNN) have been introduced to incorporate
prior physical knowledge when\r\nlearning the dynamical equations of Hamiltonian
systems. Hereby, the symplectic system structure is preserved despite\r\nthe data-driven
modeling approach. However, preserving symmetries requires additional attention.
In this research, we\r\nenhance the HNN with a Lie algebra framework to detect
and embed symmetries in the neural network. This approach\r\nallows to simultaneously
learn the symmetry group action and the total energy of the system. As illustrating
examples,\r\na pendulum on a cart and a two-body problem from astrodynamics are
considered."
article_number: '063115'
article_type: original
author:
- first_name: Eva
full_name: Dierkes, Eva
last_name: Dierkes
- first_name: Christian
full_name: Offen, Christian
id: '85279'
last_name: Offen
orcid: 0000-0002-5940-8057
- first_name: Sina
full_name: Ober-Blöbaum, Sina
id: '16494'
last_name: Ober-Blöbaum
- first_name: Kathrin
full_name: Flaßkamp, Kathrin
last_name: Flaßkamp
citation:
ama: Dierkes E, Offen C, Ober-Blöbaum S, Flaßkamp K. Hamiltonian Neural Networks
with Automatic Symmetry Detection. Chaos. 2023;33(6). doi:10.1063/5.0142969
apa: Dierkes, E., Offen, C., Ober-Blöbaum, S., & Flaßkamp, K. (2023). Hamiltonian
Neural Networks with Automatic Symmetry Detection. Chaos, 33(6),
Article 063115. https://doi.org/10.1063/5.0142969
bibtex: '@article{Dierkes_Offen_Ober-Blöbaum_Flaßkamp_2023, title={Hamiltonian Neural
Networks with Automatic Symmetry Detection}, volume={33}, DOI={10.1063/5.0142969},
number={6063115}, journal={Chaos}, publisher={AIP Publishing}, author={Dierkes,
Eva and Offen, Christian and Ober-Blöbaum, Sina and Flaßkamp, Kathrin}, year={2023}
}'
chicago: Dierkes, Eva, Christian Offen, Sina Ober-Blöbaum, and Kathrin Flaßkamp.
“Hamiltonian Neural Networks with Automatic Symmetry Detection.” Chaos
33, no. 6 (2023). https://doi.org/10.1063/5.0142969.
ieee: 'E. Dierkes, C. Offen, S. Ober-Blöbaum, and K. Flaßkamp, “Hamiltonian Neural
Networks with Automatic Symmetry Detection,” Chaos, vol. 33, no. 6, Art.
no. 063115, 2023, doi: 10.1063/5.0142969.'
mla: Dierkes, Eva, et al. “Hamiltonian Neural Networks with Automatic Symmetry Detection.”
Chaos, vol. 33, no. 6, 063115, AIP Publishing, 2023, doi:10.1063/5.0142969.
short: E. Dierkes, C. Offen, S. Ober-Blöbaum, K. Flaßkamp, Chaos 33 (2023).
date_created: 2023-01-20T09:10:06Z
date_updated: 2023-08-10T08:37:01Z
ddc:
- '510'
department:
- _id: '636'
doi: 10.1063/5.0142969
external_id:
arxiv:
- '2301.07928'
file:
- access_level: open_access
content_type: application/pdf
creator: coffen
date_created: 2023-04-26T16:20:56Z
date_updated: 2023-04-26T16:20:56Z
description: |-
Incorporating physical system knowledge into data-driven
system identification has been shown to be beneficial. The
approach presented in this article combines learning of an
energy-conserving model from data with detecting a Lie
group representation of the unknown system symmetry.
The proposed approach can improve the learned model
and reveal underlying symmetry simultaneously.
file_id: '44205'
file_name: JournalPaper_main.pdf
file_size: 5200111
relation: main_file
title: Hamiltonian Neural Networks with Automatic Symmetry Detection
file_date_updated: 2023-04-26T16:20:56Z
has_accepted_license: '1'
intvolume: ' 33'
issue: '6'
language:
- iso: eng
oa: '1'
publication: Chaos
publication_identifier:
issn:
- 1054-1500
publication_status: published
publisher: AIP Publishing
related_material:
link:
- description: GitHub
relation: software
url: https://github.com/eva-dierkes/HNN_withSymmetries
status: public
title: Hamiltonian Neural Networks with Automatic Symmetry Detection
type: journal_article
user_id: '85279'
volume: 33
year: '2023'
...
---
_id: '46473'
author:
- first_name: Lukas
full_name: Dehmel, Lukas
id: '72044'
last_name: Dehmel
citation:
ama: 'Dehmel L. 6.3.2 Medienpädagogische Professionalisierung in der beruflichen
Weiterbildung. Eine Studie aus Perspektive der biografischen Medienforschung.
Steckbrief zur Dissertation. In: Kondratjuk M, ed. Grundlagen Der Erwachsenen-
Und Weiterbildungsforschung. utb; 2023:125-127.'
apa: Dehmel, L. (2023). 6.3.2 Medienpädagogische Professionalisierung in der beruflichen
Weiterbildung. Eine Studie aus Perspektive der biografischen Medienforschung.
Steckbrief zur Dissertation. In M. Kondratjuk (Ed.), Grundlagen der Erwachsenen-
und Weiterbildungsforschung (pp. 125–127). utb.
bibtex: '@inbook{Dehmel_2023, place={Bielefeld}, title={6.3.2 Medienpädagogische
Professionalisierung in der beruflichen Weiterbildung. Eine Studie aus Perspektive
der biografischen Medienforschung. Steckbrief zur Dissertation.}, booktitle={Grundlagen
der Erwachsenen- und Weiterbildungsforschung}, publisher={utb}, author={Dehmel,
Lukas}, editor={Kondratjuk, Maria}, year={2023}, pages={125–127} }'
chicago: 'Dehmel, Lukas. “6.3.2 Medienpädagogische Professionalisierung in Der Beruflichen
Weiterbildung. Eine Studie Aus Perspektive Der Biografischen Medienforschung.
Steckbrief Zur Dissertation.” In Grundlagen Der Erwachsenen- Und Weiterbildungsforschung,
edited by Maria Kondratjuk, 125–27. Bielefeld: utb, 2023.'
ieee: 'L. Dehmel, “6.3.2 Medienpädagogische Professionalisierung in der beruflichen
Weiterbildung. Eine Studie aus Perspektive der biografischen Medienforschung.
Steckbrief zur Dissertation.,” in Grundlagen der Erwachsenen- und Weiterbildungsforschung,
M. Kondratjuk, Ed. Bielefeld: utb, 2023, pp. 125–127.'
mla: Dehmel, Lukas. “6.3.2 Medienpädagogische Professionalisierung in Der Beruflichen
Weiterbildung. Eine Studie Aus Perspektive Der Biografischen Medienforschung.
Steckbrief Zur Dissertation.” Grundlagen Der Erwachsenen- Und Weiterbildungsforschung,
edited by Maria Kondratjuk, utb, 2023, pp. 125–27.
short: 'L. Dehmel, in: M. Kondratjuk (Ed.), Grundlagen Der Erwachsenen- Und Weiterbildungsforschung,
utb, Bielefeld, 2023, pp. 125–127.'
date_created: 2023-08-10T09:15:49Z
date_updated: 2023-08-10T09:16:44Z
editor:
- first_name: Maria
full_name: Kondratjuk, Maria
last_name: Kondratjuk
language:
- iso: eng
page: 125-127
place: Bielefeld
publication: Grundlagen der Erwachsenen- und Weiterbildungsforschung
publisher: utb
status: public
title: 6.3.2 Medienpädagogische Professionalisierung in der beruflichen Weiterbildung.
Eine Studie aus Perspektive der biografischen Medienforschung. Steckbrief zur Dissertation.
type: book_chapter
user_id: '72044'
year: '2023'
...
---
_id: '46471'
author:
- first_name: Rembert
full_name: Unterstell, Rembert
last_name: Unterstell
citation:
ama: Unterstell R. „Allowing the Economy to Breathe Even During the Crisis“ – Interview
with Tax Expert Caren Sureth-Sloane. german research – Magazine of the Deutsche
Forschungsgemeinschaft. 2023;(1):8-11.
apa: Unterstell, R. (2023). „Allowing the Economy to Breathe Even During the Crisis“
– Interview with Tax Expert Caren Sureth-Sloane. German Research – Magazine
of the Deutsche Forschungsgemeinschaft, 1, 8–11.
bibtex: '@article{Unterstell_2023, title={„Allowing the Economy to Breathe Even
During the Crisis“ – Interview with Tax Expert Caren Sureth-Sloane}, number={1},
journal={german research – Magazine of the Deutsche Forschungsgemeinschaft}, author={Unterstell,
Rembert}, year={2023}, pages={8–11} }'
chicago: 'Unterstell, Rembert. “„Allowing the Economy to Breathe Even During the
Crisis“ – Interview with Tax Expert Caren Sureth-Sloane.” German Research –
Magazine of the Deutsche Forschungsgemeinschaft, no. 1 (2023): 8–11.'
ieee: R. Unterstell, “„Allowing the Economy to Breathe Even During the Crisis“ –
Interview with Tax Expert Caren Sureth-Sloane,” german research – Magazine
of the Deutsche Forschungsgemeinschaft, no. 1, pp. 8–11, 2023.
mla: Unterstell, Rembert. “„Allowing the Economy to Breathe Even During the Crisis“
– Interview with Tax Expert Caren Sureth-Sloane.” German Research – Magazine
of the Deutsche Forschungsgemeinschaft, no. 1, 2023, pp. 8–11.
short: R. Unterstell, German Research – Magazine of the Deutsche Forschungsgemeinschaft
(2023) 8–11.
date_created: 2023-08-10T09:01:24Z
date_updated: 2023-08-10T09:01:30Z
department:
- _id: '187'
issue: '1'
language:
- iso: eng
main_file_link:
- url: https://www.dfg.de/download/pdf/dfg_im_profil/geschaeftsstelle/publikationen/forschung_magazin/2023/german_research_2023_01.pdf
page: 8-11
publication: german research – Magazine of the Deutsche Forschungsgemeinschaft
publication_status: published
status: public
title: „Allowing the Economy to Breathe Even During the Crisis“ – Interview with Tax
Expert Caren Sureth-Sloane
type: journal_article
user_id: '68544'
year: '2023'
...
---
_id: '46474'
citation:
ama: Ade L, Breiwe R, Dehmel L, et al., eds. ENT | GRENZ | UNGEN in Der Medienpädagogik.
Perspektiven Im Anschluss an Den 28. Kongress Der DGfE.; 2023. doi:doi.org/10.21240/mpaed/53.X
apa: Ade, L., Breiwe, R., Dehmel, L., Wolf, K. D., Rummler, K., Dander, V., Grünberger,
N., & Schiefner-Rohs, M. (Eds.). (2023). ENT | GRENZ | UNGEN in der Medienpädagogik.
Perspektiven im Anschluss an den 28. Kongress der DGfE (Issue 53). https://doi.org/doi.org/10.21240/mpaed/53.X
bibtex: '@book{Ade_Breiwe_Dehmel_Wolf_Rummler_Dander_Grünberger_Schiefner-Rohs_2023,
series={Zeitschrift MedienPädagogik}, title={ENT | GRENZ | UNGEN in der Medienpädagogik.
Perspektiven im Anschluss an den 28. Kongress der DGfE}, DOI={doi.org/10.21240/mpaed/53.X},
number={53}, year={2023}, collection={Zeitschrift MedienPädagogik} }'
chicago: Ade, Larissa, René Breiwe, Lukas Dehmel, Karsten D. Wolf, Klaus Rummler,
Valentin Dander, Nina Grünberger, and Mandy Schiefner-Rohs, eds. ENT | GRENZ
| UNGEN in Der Medienpädagogik. Perspektiven Im Anschluss an Den 28. Kongress
Der DGfE. Zeitschrift MedienPädagogik, 2023. https://doi.org/doi.org/10.21240/mpaed/53.X.
ieee: L. Ade et al., Eds., ENT | GRENZ | UNGEN in der Medienpädagogik.
Perspektiven im Anschluss an den 28. Kongress der DGfE, no. 53. 2023.
mla: Ade, Larissa, et al., editors. ENT | GRENZ | UNGEN in Der Medienpädagogik.
Perspektiven Im Anschluss an Den 28. Kongress Der DGfE. no. 53, 2023, doi:doi.org/10.21240/mpaed/53.X.
short: L. Ade, R. Breiwe, L. Dehmel, K.D. Wolf, K. Rummler, V. Dander, N. Grünberger,
M. Schiefner-Rohs, eds., ENT | GRENZ | UNGEN in Der Medienpädagogik. Perspektiven
Im Anschluss an Den 28. Kongress Der DGfE, 2023.
date_created: 2023-08-10T09:24:52Z
date_updated: 2023-08-10T09:27:03Z
doi: doi.org/10.21240/mpaed/53.X
editor:
- first_name: Larissa
full_name: Ade, Larissa
last_name: Ade
- first_name: René
full_name: Breiwe, René
last_name: Breiwe
- first_name: Lukas
full_name: Dehmel, Lukas
id: '72044'
last_name: Dehmel
- first_name: Karsten D.
full_name: Wolf, Karsten D.
last_name: Wolf
- first_name: Klaus
full_name: Rummler, Klaus
last_name: Rummler
- first_name: Valentin
full_name: Dander, Valentin
last_name: Dander
- first_name: Nina
full_name: Grünberger, Nina
last_name: Grünberger
- first_name: Mandy
full_name: Schiefner-Rohs, Mandy
last_name: Schiefner-Rohs
issue: '53'
language:
- iso: eng
series_title: Zeitschrift MedienPädagogik
status: public
title: ENT | GRENZ | UNGEN in der Medienpädagogik. Perspektiven im Anschluss an den
28. Kongress der DGfE
type: conference_editor
user_id: '72044'
year: '2023'
...
---
_id: '46472'
author:
- first_name: Lukas
full_name: Dehmel, Lukas
id: '72044'
last_name: Dehmel
- first_name: Dorothee
full_name: Meister, Dorothee
id: '346'
last_name: Meister
- first_name: Lara
full_name: Gerhardts, Lara
last_name: Gerhardts
citation:
ama: Dehmel L, Meister D, Gerhardts L. Die Entgrenzung von Kommunikationskulturen
in Lehrpersonenkollegien. Reflexion einer unbeabsichtigten Begleiterscheinung
der Arbeit mit Tablets. Zeitschrift MedienPädagogik. 2023;(53):55-75. doi:https://doi.org/10.21240/mpaed/53/2023.06.12.X
apa: Dehmel, L., Meister, D., & Gerhardts, L. (2023). Die Entgrenzung von Kommunikationskulturen
in Lehrpersonenkollegien. Reflexion einer unbeabsichtigten Begleiterscheinung
der Arbeit mit Tablets. Zeitschrift MedienPädagogik, 53, 55–75.
https://doi.org/10.21240/mpaed/53/2023.06.12.X
bibtex: '@article{Dehmel_Meister_Gerhardts_2023, title={Die Entgrenzung von Kommunikationskulturen
in Lehrpersonenkollegien. Reflexion einer unbeabsichtigten Begleiterscheinung
der Arbeit mit Tablets.}, DOI={https://doi.org/10.21240/mpaed/53/2023.06.12.X }, number={53}, journal={Zeitschrift
MedienPädagogik}, author={Dehmel, Lukas and Meister, Dorothee and Gerhardts, Lara},
year={2023}, pages={55–75} }'
chicago: 'Dehmel, Lukas, Dorothee Meister, and Lara Gerhardts. “Die Entgrenzung
von Kommunikationskulturen in Lehrpersonenkollegien. Reflexion Einer Unbeabsichtigten
Begleiterscheinung Der Arbeit Mit Tablets.” Zeitschrift MedienPädagogik,
no. 53 (2023): 55–75. https://doi.org/10.21240/mpaed/53/2023.06.12.X .'
ieee: 'L. Dehmel, D. Meister, and L. Gerhardts, “Die Entgrenzung von Kommunikationskulturen
in Lehrpersonenkollegien. Reflexion einer unbeabsichtigten Begleiterscheinung
der Arbeit mit Tablets.,” Zeitschrift MedienPädagogik, no. 53, pp. 55–75,
2023, doi: https://doi.org/10.21240/mpaed/53/2023.06.12.X
.'
mla: Dehmel, Lukas, et al. “Die Entgrenzung von Kommunikationskulturen in Lehrpersonenkollegien.
Reflexion Einer Unbeabsichtigten Begleiterscheinung Der Arbeit Mit Tablets.” Zeitschrift
MedienPädagogik, no. 53, 2023, pp. 55–75, doi:https://doi.org/10.21240/mpaed/53/2023.06.12.X .
short: L. Dehmel, D. Meister, L. Gerhardts, Zeitschrift MedienPädagogik (2023) 55–75.
date_created: 2023-08-10T09:11:48Z
date_updated: 2023-08-10T09:12:02Z
doi: 'https://doi.org/10.21240/mpaed/53/2023.06.12.X '
issue: '53'
language:
- iso: eng
page: 55-75
publication: Zeitschrift MedienPädagogik
status: public
title: Die Entgrenzung von Kommunikationskulturen in Lehrpersonenkollegien. Reflexion
einer unbeabsichtigten Begleiterscheinung der Arbeit mit Tablets.
type: journal_article
user_id: '72044'
year: '2023'
...
---
_id: '46475'
abstract:
- lang: ger
text: Dieser Beitrag bietet verschiedene professionelle Perspektiven auf den popmusikalischen
Kommunikationsprozesses innerhalb postdigitaler Popmusikjournalismuskulturen.
Neben einer wissenschaftlichen Rahmung, Übersicht und Strukturierung des Untersuchungsfelds
und des Forschungsstands versammelt der Beitrag multiperspektivische Thesen, die
journalistische Praktiken und ihre Reflexionen von Produktion über Distribution
und Rezeption/Nutzung bis zur Weiterverarbeitung inklusive Archivierung/Institutionalisierung/Musealisierung
aufgreifen und herausstellen. Die aufgestellten Thesen gelten als Aufschlag für
die zukünftige Analyse des so fundamentalen und doch auch immer wieder übersehenen
Berufsfeldes und seiner Rezeption zwischen Faszination und Exploitation.
author:
- first_name: Tanja
full_name: Godlewsky, Tanja
last_name: Godlewsky
- first_name: Christoph
full_name: Jacke, Christoph
id: '20747'
last_name: Jacke
- first_name: Stefanie
full_name: Roenneke, Stefanie
last_name: Roenneke
- first_name: Thomas
full_name: Venker, Thomas
last_name: Venker
citation:
ama: 'Godlewsky T, Jacke C, Roenneke S, Venker T. Pop(musik)journalismen zwischen
Printmagazin-Krise und postdigitaler Realität – Forschungsüberblick und multiperspektivische
Thesen. In: Moormann P, Ruth N, eds. Musik Und Internet. Aktuelle Phänomene
Populärer Kulturen. Springer Fachmedien Wiesbaden; 2023. doi:10.1007/978-3-658-39145-4_11'
apa: Godlewsky, T., Jacke, C., Roenneke, S., & Venker, T. (2023). Pop(musik)journalismen
zwischen Printmagazin-Krise und postdigitaler Realität – Forschungsüberblick und
multiperspektivische Thesen. In P. Moormann & N. Ruth (Eds.), Musik und
Internet. Aktuelle Phänomene populärer Kulturen. Springer Fachmedien Wiesbaden.
https://doi.org/10.1007/978-3-658-39145-4_11
bibtex: '@inbook{Godlewsky_Jacke_Roenneke_Venker_2023, place={Wiesbaden}, title={Pop(musik)journalismen
zwischen Printmagazin-Krise und postdigitaler Realität – Forschungsüberblick und
multiperspektivische Thesen}, DOI={10.1007/978-3-658-39145-4_11},
booktitle={Musik und Internet. Aktuelle Phänomene populärer Kulturen}, publisher={Springer
Fachmedien Wiesbaden}, author={Godlewsky, Tanja and Jacke, Christoph and Roenneke,
Stefanie and Venker, Thomas}, editor={Moormann, Peter and Ruth, Nicolas}, year={2023}
}'
chicago: 'Godlewsky, Tanja, Christoph Jacke, Stefanie Roenneke, and Thomas Venker.
“Pop(Musik)Journalismen Zwischen Printmagazin-Krise Und Postdigitaler Realität
– Forschungsüberblick Und Multiperspektivische Thesen.” In Musik Und Internet.
Aktuelle Phänomene Populärer Kulturen, edited by Peter Moormann and Nicolas
Ruth. Wiesbaden: Springer Fachmedien Wiesbaden, 2023. https://doi.org/10.1007/978-3-658-39145-4_11.'
ieee: 'T. Godlewsky, C. Jacke, S. Roenneke, and T. Venker, “Pop(musik)journalismen
zwischen Printmagazin-Krise und postdigitaler Realität – Forschungsüberblick und
multiperspektivische Thesen,” in Musik und Internet. Aktuelle Phänomene populärer
Kulturen, P. Moormann and N. Ruth, Eds. Wiesbaden: Springer Fachmedien Wiesbaden,
2023.'
mla: Godlewsky, Tanja, et al. “Pop(Musik)Journalismen Zwischen Printmagazin-Krise
Und Postdigitaler Realität – Forschungsüberblick Und Multiperspektivische Thesen.”
Musik Und Internet. Aktuelle Phänomene Populärer Kulturen, edited by Peter
Moormann and Nicolas Ruth, Springer Fachmedien Wiesbaden, 2023, doi:10.1007/978-3-658-39145-4_11.
short: 'T. Godlewsky, C. Jacke, S. Roenneke, T. Venker, in: P. Moormann, N. Ruth
(Eds.), Musik Und Internet. Aktuelle Phänomene Populärer Kulturen, Springer Fachmedien
Wiesbaden, Wiesbaden, 2023.'
date_created: 2023-08-10T10:11:20Z
date_updated: 2023-08-10T10:13:18Z
department:
- _id: '607'
doi: 10.1007/978-3-658-39145-4_11
editor:
- first_name: Peter
full_name: Moormann, Peter
last_name: Moormann
- first_name: Nicolas
full_name: Ruth, Nicolas
last_name: Ruth
language:
- iso: eng
place: Wiesbaden
publication: Musik und Internet. Aktuelle Phänomene populärer Kulturen
publication_identifier:
isbn:
- '9783658391447'
- '9783658391454'
issn:
- 2626-6199
- 2626-6202
publication_status: published
publisher: Springer Fachmedien Wiesbaden
status: public
title: Pop(musik)journalismen zwischen Printmagazin-Krise und postdigitaler Realität
– Forschungsüberblick und multiperspektivische Thesen
type: book_chapter
user_id: '33226'
year: '2023'
...
---
_id: '46476'
abstract:
- lang: eng
text: Abstract. Increasing resource efficiency is a major challenge and
affects almost every aspect of social and economic life. The mobility sector in
particular is responsible for a large share of primary energy consumption and
is increasingly in the focus of public interest. One possibility to adress these
challenges is to reduce the vehicle weight by means of lightweight construction
technologies such as multi-material systems. These assemblies consist of workpieces
with different mechanical and geometrical properties, which poses a major challenge
for joining technology. Mechanical joining processes such as semi-tubular self-piercing
riveting are often used in the production of these assemblies, but due to their
process characteristics, they are rigid and can only react to changing process
variables to a limited extent. One way to increase the versatility of self-piercing
riveting is to superimpose a tumbling kinematics on the punch. During tumbling,
an angular offset of the punch axis to the tool axis is set and the contact area
between punch and workpiece is reduced. In this work, investigations were carried
out to determine how the tumbling strategy, consisting of the parameters tumbling
angle, tumbling onset and tumbling kinematics, affects the material flow of the
rivet element. For this purpose, experimental tests are conducted with the typical
materials of conventional multi-material systems and the geometric joint formations
are determined by means of macrographs.
author:
- first_name: S.
full_name: Wituschek, S.
last_name: Wituschek
- first_name: L.
full_name: Elbel, L.
last_name: Elbel
- first_name: M.
full_name: Lechner, M.
last_name: Lechner
citation:
ama: 'Wituschek S, Elbel L, Lechner M. Versatile self-piercing riveting with a tumbling
superimposed punch. In: Materials Research Proceedings. Materials Research
Forum LLC; 2023. doi:10.21741/9781644902479-122'
apa: Wituschek, S., Elbel, L., & Lechner, M. (2023). Versatile self-piercing
riveting with a tumbling superimposed punch. Materials Research Proceedings.
https://doi.org/10.21741/9781644902479-122
bibtex: '@inproceedings{Wituschek_Elbel_Lechner_2023, title={Versatile self-piercing
riveting with a tumbling superimposed punch}, DOI={10.21741/9781644902479-122},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Wituschek, S. and Elbel, L. and Lechner, M.}, year={2023} }'
chicago: Wituschek, S., L. Elbel, and M. Lechner. “Versatile Self-Piercing Riveting
with a Tumbling Superimposed Punch.” In Materials Research Proceedings.
Materials Research Forum LLC, 2023. https://doi.org/10.21741/9781644902479-122.
ieee: 'S. Wituschek, L. Elbel, and M. Lechner, “Versatile self-piercing riveting
with a tumbling superimposed punch,” 2023, doi: 10.21741/9781644902479-122.'
mla: Wituschek, S., et al. “Versatile Self-Piercing Riveting with a Tumbling Superimposed
Punch.” Materials Research Proceedings, Materials Research Forum LLC, 2023,
doi:10.21741/9781644902479-122.
short: 'S. Wituschek, L. Elbel, M. Lechner, in: Materials Research Proceedings,
Materials Research Forum LLC, 2023.'
date_created: 2023-08-10T10:38:51Z
date_updated: 2023-08-10T10:41:41Z
doi: 10.21741/9781644902479-122
language:
- iso: eng
project:
- _id: '130'
grant_number: '418701707'
name: 'TRR 285: TRR 285'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
status: public
title: Versatile self-piercing riveting with a tumbling superimposed punch
type: conference
user_id: '83423'
year: '2023'
...
---
_id: '46482'
abstract:
- lang: eng
text: "Ever increasing demands on the performance of microchips are leading to ever
more complex semiconductor technologies with ever shrinking feature sizes. Complex
applications with high demands on safety and reliability, such as autonomous driving,
are simultaneously driving the requirements for test and diagnosis of VLSI circuits.
Throughout the life cycle of a microchip, uncertainties occur that affect its
timing behavior. For example, weak circuit structures, aging effects, or process
variations can lead to a change in the timing behavior of the circuit. While these
uncertainties do not necessarily lead to a change of the functional behavior,
they can lead to a reliability problem.\r\nWith modular and hybrid compaction
two test instruments are presented in this work that can be used for X-tolerant
test response compaction in the built-in Faster-than-At-Speed Test (FAST) which
is used to detect uncertainties in VLSI circuits. One challenge for test response
compaction during FAST is the high and varying X-rate at the outputs of the circuit
under test. By dividing the circuit outputs into test groups and separately compacting
these test groups using stochastic compactors, the modular compaction is able
to handle these high and varying X-rates.\r\nTo deal with uncertainties on logic
interconnects, a method for distinguishing crosstalk and process variation is
presented. In current semiconductor technologies, the number of parasitic coupling
capacitances between logic interconnects is growing. These coupling capacitances
can lead to crosstalk, which causes increased current flow in the logic interconnects,
which in turn can lead to increased electromigration. In the presented method,
delay maps describing the timing behavior of the circuit outputs at different
operating points are used to train artificial neural networks which classify the
tested circuits into fault-free and faulty."
- lang: ger
text: "Immer größere Anforderungen an die Leistungsfähigkeit von Mikrochips führen
zu Halbleitertechnologien mit immer kleiner werdenden Strukturgrößen. Anwendungen
mit hohen Ansprüchen an Sicherheit und Zuverlässigkeit, wie z.B. das autonome
Fahren, treiben gleichzeitig die Anforderungen an den Test hochintegrierter Schaltungen
an. Während des gesamten Lebenszyklus eines Mikrochips kommt es zu Unsicherheiten
im Zeitverhalten. So können z.B. schwache Schaltungsstrukturen, Alterungseffekte
oder Prozessvariationen zu einer Veränderung des Zeitverhaltens führen. Während
diese Unsicherheiten nicht zu einer Veränderung des funktionalen Verhaltens führen
müssen, können sie jedoch zu einem Zuverlässigkeitsproblem führen.\r\nMit der
modularen und der hybriden Kompaktierung werden in dieser Arbeit zwei Testinstrumente
vorgestellt, die für die X-tolerante Testantwortkompaktierung im eingebauten Hochgeschwindigkeitstest
verwendet werden können. Eine Herausforderung für die Testantwortkompaktierung
während des Hochgeschwindigkeitstests ist die hohe und variierende X-Rate an den
Ausgängen der zu testenden Schaltung. Durch die Einteilung der Schaltungsausgänge
in Prüfgruppen und die separierte Kompaktierung der Prüfgruppen mithilfe von stochastischen
Kompaktierern, können die vorgestellten Verfahren diese hohen und variierenden
X-Raten verarbeiten.\r\nFür den Umgang mit Unsicherheiten auf Verbindungsleitungen
der Logik-Schaltung wird ein Verfahren zur Unterscheidung von Übersprechen und
Prozessvariation vorgestellt. In aktuellen Halbleitertechnologien kommt es vermehrt
zu parasitären Koppelkapazitäten zwischen den Verbindungsleitungen. In dem vorgestellten
Verfahren werden künstliche neuronale Netze trainiert, um die Schaltungen in fehlerfrei
und fehlerhaft zu klassifizieren."
author:
- first_name: Alexander
full_name: Sprenger, Alexander
id: '22707'
last_name: Sprenger
orcid: 0000-0002-0775-7677
citation:
ama: Sprenger A. Testinstrumente und Testdatenanalyse zur Verarbeitung von Unsicherheiten
in Logikblöcken hochintegrierter Schaltungen. Universität Paderborn; 2023.
doi:10.17619/UNIPB/1-1787
apa: Sprenger, A. (2023). Testinstrumente und Testdatenanalyse zur Verarbeitung
von Unsicherheiten in Logikblöcken hochintegrierter Schaltungen. Universität
Paderborn. https://doi.org/10.17619/UNIPB/1-1787
bibtex: '@book{Sprenger_2023, place={Paderborn}, title={Testinstrumente und Testdatenanalyse
zur Verarbeitung von Unsicherheiten in Logikblöcken hochintegrierter Schaltungen},
DOI={10.17619/UNIPB/1-1787},
publisher={Universität Paderborn}, author={Sprenger, Alexander}, year={2023} }'
chicago: 'Sprenger, Alexander. Testinstrumente und Testdatenanalyse zur Verarbeitung
von Unsicherheiten in Logikblöcken hochintegrierter Schaltungen. Paderborn:
Universität Paderborn, 2023. https://doi.org/10.17619/UNIPB/1-1787.'
ieee: 'A. Sprenger, Testinstrumente und Testdatenanalyse zur Verarbeitung von
Unsicherheiten in Logikblöcken hochintegrierter Schaltungen. Paderborn: Universität
Paderborn, 2023.'
mla: Sprenger, Alexander. Testinstrumente und Testdatenanalyse zur Verarbeitung
von Unsicherheiten in Logikblöcken hochintegrierter Schaltungen. Universität
Paderborn, 2023, doi:10.17619/UNIPB/1-1787.
short: A. Sprenger, Testinstrumente und Testdatenanalyse zur Verarbeitung von Unsicherheiten
in Logikblöcken hochintegrierter Schaltungen, Universität Paderborn, Paderborn,
2023.
date_created: 2023-08-12T09:10:38Z
date_updated: 2023-08-12T09:13:18Z
department:
- _id: '48'
doi: 10.17619/UNIPB/1-1787
extern: '1'
keyword:
- Testantwortkompaktierung
- Prozessvariation
- Silicon Lifecycle Management
language:
- iso: ger
main_file_link:
- open_access: '1'
url: https://nbn-resolving.org/urn:nbn:de:hbz:466:2-45493
oa: '1'
page: xi, 160
place: Paderborn
publication_status: published
publisher: Universität Paderborn
status: public
supervisor:
- first_name: Sybille
full_name: Hellebrand, Sybille
id: '209'
last_name: Hellebrand
orcid: 0000-0002-3717-3939
- first_name: Marco
full_name: Platzner, Marco
id: '398'
last_name: Platzner
title: Testinstrumente und Testdatenanalyse zur Verarbeitung von Unsicherheiten in
Logikblöcken hochintegrierter Schaltungen
type: dissertation
user_id: '22707'
year: '2023'
...
---
_id: '46485'
abstract:
- lang: eng
text: We present a miniaturized pulse shaping device that creates an arbitrary dispersion
through the interaction of multiple metasurfaces on less than 2 mm3
volume. For this, a metalens and a grating-metasurface between two silver mirrors
are fabricated. The grating contains further phase information to achieve the
device's pulse shaping functionality.
article_number: FTh4D.3
author:
- first_name: René
full_name: Geromel, René
last_name: Geromel
- first_name: Philip
full_name: Georgi, Philip
last_name: Georgi
- first_name: Maximilian
full_name: Protte, Maximilian
id: '46170'
last_name: Protte
- first_name: Tim
full_name: Bartley, Tim
id: '49683'
last_name: Bartley
- first_name: Lingling
full_name: Huang, Lingling
last_name: Huang
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
citation:
ama: 'Geromel R, Georgi P, Protte M, Bartley T, Huang L, Zentgraf T. Dispersion
control with integrated plasmonic metasurfaces. In: CLEO: Fundamental Science
2023. Technical Digest Series. Optica Publishing Group; 2023. doi:10.1364/cleo_fs.2023.fth4d.3'
apa: 'Geromel, R., Georgi, P., Protte, M., Bartley, T., Huang, L., & Zentgraf,
T. (2023). Dispersion control with integrated plasmonic metasurfaces. CLEO:
Fundamental Science 2023, Article FTh4D.3. CLEO: Fundamental Science 2023,
San Jose, USA. https://doi.org/10.1364/cleo_fs.2023.fth4d.3'
bibtex: '@inproceedings{Geromel_Georgi_Protte_Bartley_Huang_Zentgraf_2023, series={Technical
Digest Series}, title={Dispersion control with integrated plasmonic metasurfaces},
DOI={10.1364/cleo_fs.2023.fth4d.3},
number={FTh4D.3}, booktitle={CLEO: Fundamental Science 2023}, publisher={Optica
Publishing Group}, author={Geromel, René and Georgi, Philip and Protte, Maximilian
and Bartley, Tim and Huang, Lingling and Zentgraf, Thomas}, year={2023}, collection={Technical
Digest Series} }'
chicago: 'Geromel, René, Philip Georgi, Maximilian Protte, Tim Bartley, Lingling
Huang, and Thomas Zentgraf. “Dispersion Control with Integrated Plasmonic Metasurfaces.”
In CLEO: Fundamental Science 2023. Technical Digest Series. Optica Publishing
Group, 2023. https://doi.org/10.1364/cleo_fs.2023.fth4d.3.'
ieee: 'R. Geromel, P. Georgi, M. Protte, T. Bartley, L. Huang, and T. Zentgraf,
“Dispersion control with integrated plasmonic metasurfaces,” presented at the
CLEO: Fundamental Science 2023, San Jose, USA, 2023, doi: 10.1364/cleo_fs.2023.fth4d.3.'
mla: 'Geromel, René, et al. “Dispersion Control with Integrated Plasmonic Metasurfaces.”
CLEO: Fundamental Science 2023, FTh4D.3, Optica Publishing Group, 2023,
doi:10.1364/cleo_fs.2023.fth4d.3.'
short: 'R. Geromel, P. Georgi, M. Protte, T. Bartley, L. Huang, T. Zentgraf, in:
CLEO: Fundamental Science 2023, Optica Publishing Group, 2023.'
conference:
end_date: 2023-05-12
location: San Jose, USA
name: 'CLEO: Fundamental Science 2023'
start_date: 2023-05-07
date_created: 2023-08-14T08:19:22Z
date_updated: 2023-08-14T08:22:31Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1364/cleo_fs.2023.fth4d.3
language:
- iso: eng
project:
- _id: '53'
grant_number: '231447078'
name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
Konzepten zu funktionellen Strukturen'
- _id: '55'
name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '170'
grant_number: '231447078'
name: 'TRR 142 - B09: TRR 142 - Effiziente Erzeugung mit maßgeschneiderter optischer
Phaselage der zweiten Harmonischen mittels Quasi-gebundener Zustände in GaAs Metaoberflächen
(B09*)'
publication: 'CLEO: Fundamental Science 2023'
publication_status: published
publisher: Optica Publishing Group
series_title: Technical Digest Series
status: public
title: Dispersion control with integrated plasmonic metasurfaces
type: conference
user_id: '30525'
year: '2023'
...
---
_id: '44851'
abstract:
- lang: eng
text: We present the fabrication of strain-free quantum dots in the In0.53Ga0.47As/In0.52Al0.48As-system
lattice matched to InP, as future sources for single and entangled photons for
long-haul fiber-based quantum communication in the optical C-band. We achieved
these quantum dots by local droplet etching via InAl droplets in an In0.52Al0.48As
layer and subsequent filling of the holes with In0.53Ga0.47As. Here, we present
detailed investigations of the hole morphologies measured by atomic force microscopy.
Statistical analysis of a set of nanoholes reveals a high degree of symmetry for
nearly half of them when etched at optimized temperatures. Overgrowth with 50–150 nm
In0.52Al0.48As increases their diameter and elongates the holes along the [01̄1]-direction.
By systematically scanning the parameter space, we were able to fill the holes
with In0.53Ga0.47As, and by capping the filled holes and performing photoluminescence
measurements, we observe photoluminescence emission in the O-band up into the
C-band depending on the filling height of the nanoholes.
author:
- first_name: D.
full_name: Deutsch, D.
last_name: Deutsch
- first_name: C.
full_name: Buchholz, C.
last_name: Buchholz
- first_name: V.
full_name: Zolatanosha, V.
last_name: Zolatanosha
- first_name: K. D.
full_name: Jöns, K. D.
last_name: Jöns
- first_name: D.
full_name: Reuter, D.
last_name: Reuter
citation:
ama: Deutsch D, Buchholz C, Zolatanosha V, Jöns KD, Reuter D. Telecom C-band photon
emission from (In,Ga)As quantum dots generated by filling nanoholes in In0.52Al0.48As
layers. AIP Advances. 2023;13(5). doi:10.1063/5.0147281
apa: Deutsch, D., Buchholz, C., Zolatanosha, V., Jöns, K. D., & Reuter, D. (2023).
Telecom C-band photon emission from (In,Ga)As quantum dots generated by filling
nanoholes in In0.52Al0.48As layers. AIP Advances, 13(5). https://doi.org/10.1063/5.0147281
bibtex: '@article{Deutsch_Buchholz_Zolatanosha_Jöns_Reuter_2023, title={Telecom
C-band photon emission from (In,Ga)As quantum dots generated by filling nanoholes
in In0.52Al0.48As layers}, volume={13}, DOI={10.1063/5.0147281},
number={5}, journal={AIP Advances}, publisher={AIP Publishing}, author={Deutsch,
D. and Buchholz, C. and Zolatanosha, V. and Jöns, K. D. and Reuter, D.}, year={2023}
}'
chicago: Deutsch, D., C. Buchholz, V. Zolatanosha, K. D. Jöns, and D. Reuter. “Telecom
C-Band Photon Emission from (In,Ga)As Quantum Dots Generated by Filling Nanoholes
in In0.52Al0.48As Layers.” AIP Advances 13, no. 5 (2023). https://doi.org/10.1063/5.0147281.
ieee: 'D. Deutsch, C. Buchholz, V. Zolatanosha, K. D. Jöns, and D. Reuter, “Telecom
C-band photon emission from (In,Ga)As quantum dots generated by filling nanoholes
in In0.52Al0.48As layers,” AIP Advances, vol. 13, no. 5, 2023, doi: 10.1063/5.0147281.'
mla: Deutsch, D., et al. “Telecom C-Band Photon Emission from (In,Ga)As Quantum
Dots Generated by Filling Nanoholes in In0.52Al0.48As Layers.” AIP Advances,
vol. 13, no. 5, AIP Publishing, 2023, doi:10.1063/5.0147281.
short: D. Deutsch, C. Buchholz, V. Zolatanosha, K.D. Jöns, D. Reuter, AIP Advances
13 (2023).
date_created: 2023-05-15T08:55:49Z
date_updated: 2023-08-14T10:05:15Z
department:
- _id: '15'
- _id: '230'
doi: 10.1063/5.0147281
intvolume: ' 13'
issue: '5'
keyword:
- General Physics and Astronomy
language:
- iso: eng
publication: AIP Advances
publication_identifier:
issn:
- 2158-3226
publication_status: published
publisher: AIP Publishing
status: public
title: Telecom C-band photon emission from (In,Ga)As quantum dots generated by filling
nanoholes in In0.52Al0.48As layers
type: journal_article
user_id: '37763'
volume: 13
year: '2023'
...