---
_id: '59272'
abstract:
- lang: eng
text: 'Ferroelectrics such as LiNbO3 (LN) are wide-band-gap insulators that may
show a high local electric conductivity at the domain walls (DWs). The latter
are interfaces separating regions of noncollinear polarization, which can be manipulated
to build integrated nanoelectronic elements. In the present work, we model different
DW types in LN from first principles. Our models reveal the DW morphology and
shed light on their electronic properties: A strong band bending is predicted
for charged DWs, leading to local metallicity. Defect trapping at the DW may further
enhance the electric conductivity.'
article_number: L042015
author:
- first_name: Leonard M.
full_name: Verhoff, Leonard M.
last_name: Verhoff
- first_name: Mike N.
full_name: Pionteck, Mike N.
last_name: Pionteck
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
- first_name: Holger
full_name: Fritze, Holger
last_name: Fritze
- first_name: Lukas M.
full_name: Eng, Lukas M.
last_name: Eng
- first_name: Simone
full_name: Sanna, Simone
last_name: Sanna
citation:
ama: 'Verhoff LM, Pionteck MN, Rüsing M, Fritze H, Eng LM, Sanna S. Two-dimensional
electronic conductivity in insulating ferroelectrics: Peculiar properties of domain
walls. Physical Review Research. 2024;6(4). doi:10.1103/physrevresearch.6.l042015'
apa: 'Verhoff, L. M., Pionteck, M. N., Rüsing, M., Fritze, H., Eng, L. M., &
Sanna, S. (2024). Two-dimensional electronic conductivity in insulating ferroelectrics:
Peculiar properties of domain walls. Physical Review Research, 6(4),
Article L042015. https://doi.org/10.1103/physrevresearch.6.l042015'
bibtex: '@article{Verhoff_Pionteck_Rüsing_Fritze_Eng_Sanna_2024, title={Two-dimensional
electronic conductivity in insulating ferroelectrics: Peculiar properties of domain
walls}, volume={6}, DOI={10.1103/physrevresearch.6.l042015},
number={4L042015}, journal={Physical Review Research}, publisher={American Physical
Society (APS)}, author={Verhoff, Leonard M. and Pionteck, Mike N. and Rüsing,
Michael and Fritze, Holger and Eng, Lukas M. and Sanna, Simone}, year={2024} }'
chicago: 'Verhoff, Leonard M., Mike N. Pionteck, Michael Rüsing, Holger Fritze,
Lukas M. Eng, and Simone Sanna. “Two-Dimensional Electronic Conductivity in Insulating
Ferroelectrics: Peculiar Properties of Domain Walls.” Physical Review Research
6, no. 4 (2024). https://doi.org/10.1103/physrevresearch.6.l042015.'
ieee: 'L. M. Verhoff, M. N. Pionteck, M. Rüsing, H. Fritze, L. M. Eng, and S. Sanna,
“Two-dimensional electronic conductivity in insulating ferroelectrics: Peculiar
properties of domain walls,” Physical Review Research, vol. 6, no. 4, Art.
no. L042015, 2024, doi: 10.1103/physrevresearch.6.l042015.'
mla: 'Verhoff, Leonard M., et al. “Two-Dimensional Electronic Conductivity in Insulating
Ferroelectrics: Peculiar Properties of Domain Walls.” Physical Review Research,
vol. 6, no. 4, L042015, American Physical Society (APS), 2024, doi:10.1103/physrevresearch.6.l042015.'
short: L.M. Verhoff, M.N. Pionteck, M. Rüsing, H. Fritze, L.M. Eng, S. Sanna, Physical
Review Research 6 (2024).
date_created: 2025-04-02T16:08:55Z
date_updated: 2025-04-02T16:10:59Z
department:
- _id: '623'
- _id: '288'
- _id: '15'
doi: 10.1103/physrevresearch.6.l042015
intvolume: ' 6'
issue: '4'
language:
- iso: eng
main_file_link:
- url: https://jlupub.ub.uni-giessen.de/server/api/core/bitstreams/fb2b09e6-c0f8-4209-99a1-79fc81d9b1f9/content
publication: Physical Review Research
publication_identifier:
issn:
- 2643-1564
publication_status: published
publisher: American Physical Society (APS)
status: public
title: 'Two-dimensional electronic conductivity in insulating ferroelectrics: Peculiar
properties of domain walls'
type: journal_article
user_id: '22501'
volume: 6
year: '2024'
...
---
_id: '59273'
abstract:
- lang: eng
text: Ferroelectric domain walls (DWs) are promising structures for assembling future
nano-electronic circuit elements on a larger scale since reporting domain wall
currents of up to 1 mA per single DW. One key requirement hereto is their reproducible
manufacturing by gaining preparative control over domain size and domain wall
conductivity (DWC). To date, most works on DWC have focused on exploring the fundamental
electrical properties of individual DWs within single-shot experiments, with an
emphasis on quantifying the origins of DWC. Very few reports exist when it comes
to comparing the DWC properties between two separate DWs, and literally nothing
exists where issues of reproducibility in DWC devices have been addressed. To
fill this gap while facing the challenge of finding guidelines for achieving predictable
DWC performance, we report on a procedure that allows us to reproducibly prepare
single hexagonal domains of a predefined diameter into uniaxial ferroelectric
lithium niobate single crystals of 200 and 300 μm thickness, respectively. We
show that the domain diameter can be controlled with an uncertainty of a few percent.
As-grown DWs are then subjected to a standard procedure of current-limited high-voltage
DWC enhancement, and they repetitively reach a DWC increase of six orders of magnitude.
While all resulting DWs show significantly enhanced DWC values, their individual
current–voltage (I–V) characteristics exhibit different shapes, which can be explained
by variations in their 3D real structure reflecting local heterogeneities by defects,
DW pinning, and surface-near DW inclination.
article_type: original
author:
- first_name: Julius
full_name: Ratzenberger, Julius
last_name: Ratzenberger
- first_name: Iuliia
full_name: Kiseleva, Iuliia
last_name: Kiseleva
- first_name: Boris
full_name: Koppitz, Boris
last_name: Koppitz
- first_name: Elke
full_name: Beyreuther, Elke
last_name: Beyreuther
- first_name: Manuel
full_name: Zahn, Manuel
last_name: Zahn
- first_name: Joshua
full_name: Gössel, Joshua
last_name: Gössel
- first_name: Peter A.
full_name: Hegarty, Peter A.
last_name: Hegarty
- first_name: Zeeshan H.
full_name: Amber, Zeeshan H.
last_name: Amber
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
- first_name: Lukas M.
full_name: Eng, Lukas M.
last_name: Eng
citation:
ama: Ratzenberger J, Kiseleva I, Koppitz B, et al. Toward the reproducible fabrication
of conductive ferroelectric domain walls into lithium niobate bulk single crystals.
Journal of Applied Physics. 2024;136(10):104302. doi:10.1063/5.0219300
apa: Ratzenberger, J., Kiseleva, I., Koppitz, B., Beyreuther, E., Zahn, M., Gössel,
J., Hegarty, P. A., Amber, Z. H., Rüsing, M., & Eng, L. M. (2024). Toward
the reproducible fabrication of conductive ferroelectric domain walls into lithium
niobate bulk single crystals. Journal of Applied Physics, 136(10),
104302. https://doi.org/10.1063/5.0219300
bibtex: '@article{Ratzenberger_Kiseleva_Koppitz_Beyreuther_Zahn_Gössel_Hegarty_Amber_Rüsing_Eng_2024,
title={Toward the reproducible fabrication of conductive ferroelectric domain
walls into lithium niobate bulk single crystals}, volume={136}, DOI={10.1063/5.0219300},
number={10}, journal={Journal of Applied Physics}, publisher={AIP Publishing},
author={Ratzenberger, Julius and Kiseleva, Iuliia and Koppitz, Boris and Beyreuther,
Elke and Zahn, Manuel and Gössel, Joshua and Hegarty, Peter A. and Amber, Zeeshan
H. and Rüsing, Michael and Eng, Lukas M.}, year={2024}, pages={104302} }'
chicago: 'Ratzenberger, Julius, Iuliia Kiseleva, Boris Koppitz, Elke Beyreuther,
Manuel Zahn, Joshua Gössel, Peter A. Hegarty, Zeeshan H. Amber, Michael Rüsing,
and Lukas M. Eng. “Toward the Reproducible Fabrication of Conductive Ferroelectric
Domain Walls into Lithium Niobate Bulk Single Crystals.” Journal of Applied
Physics 136, no. 10 (2024): 104302. https://doi.org/10.1063/5.0219300.'
ieee: 'J. Ratzenberger et al., “Toward the reproducible fabrication of conductive
ferroelectric domain walls into lithium niobate bulk single crystals,” Journal
of Applied Physics, vol. 136, no. 10, p. 104302, 2024, doi: 10.1063/5.0219300.'
mla: Ratzenberger, Julius, et al. “Toward the Reproducible Fabrication of Conductive
Ferroelectric Domain Walls into Lithium Niobate Bulk Single Crystals.” Journal
of Applied Physics, vol. 136, no. 10, AIP Publishing, 2024, p. 104302, doi:10.1063/5.0219300.
short: J. Ratzenberger, I. Kiseleva, B. Koppitz, E. Beyreuther, M. Zahn, J. Gössel,
P.A. Hegarty, Z.H. Amber, M. Rüsing, L.M. Eng, Journal of Applied Physics 136
(2024) 104302.
date_created: 2025-04-02T16:12:29Z
date_updated: 2025-04-02T16:14:31Z
department:
- _id: '288'
- _id: '15'
- _id: '623'
doi: 10.1063/5.0219300
intvolume: ' 136'
issue: '10'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: ' https://doi.org/10.1063/5.0219300'
oa: '1'
page: '104302'
publication: Journal of Applied Physics
publication_identifier:
issn:
- 0021-8979
- 1089-7550
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
status: public
title: Toward the reproducible fabrication of conductive ferroelectric domain walls
into lithium niobate bulk single crystals
type: journal_article
user_id: '22501'
volume: 136
year: '2024'
...
---
_id: '59274'
abstract:
- lang: eng
text: 'Recently, ion exchange (IE) has been used to periodically modify the coercive
field (Ec) of the crystal prior to periodic poling, to fabricate fine-pitch domain
structures in Rb-doped KTiOPO4 (RKTP). Here, we use micro-Raman spectroscopy to
understand the impact of IE on the vibrational modes related to the Rb/K lattice
sites, TiO octahedra, and PO4 tetrahedra, which all form the basis of the RKTP
crystal structure. We analyze the Raman spectra of three different RKTP samples:
(1) a RKTP sample that shows a poled domain grating only, (2) a RKTP sample that
has an Ec grating only, and (3) a RKTP sample that has both an Ec and a domain
grating of the nominally same spacing. This allows us to determine the impact
of IE on the vibrational modes of RKTP. We characterize the changes in the lower
Raman peaks related to the alkali-metal ions, as well as observe lattice modifications
induced by the incorporation of Rb+ that extend further into the crystal bulk
than the expected IE depth. Moreover, the influence of IE on the domain walls
is also manifested in their Raman peak shift. We discuss our results in terms
of the deformation of the PO4and TiO groups. Our results highlight the intricate
impact of IE on the crystal structure and how it facilitates periodic poling,
paving the way for further development of the Ec-engineering technique.'
article_number: '214115'
article_type: original
author:
- first_name: Cherrie S. J.
full_name: Lee, Cherrie S. J.
last_name: Lee
- first_name: Carlota
full_name: Canalias, Carlota
last_name: Canalias
- first_name: Robin
full_name: Buschbeck, Robin
last_name: Buschbeck
- first_name: Boris
full_name: Koppitz, Boris
last_name: Koppitz
- first_name: Franz
full_name: Hempel, Franz
last_name: Hempel
- first_name: Zeeshan
full_name: Amber, Zeeshan
last_name: Amber
- first_name: Lukas M.
full_name: Eng, Lukas M.
last_name: Eng
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
citation:
ama: 'Lee CSJ, Canalias C, Buschbeck R, et al. Impact of ion exchange on vibrational
modes in Rb-doped KTiOPO4: A Raman spectroscopy study on the interplay between
ion exchange and polarization switching. Physical Review B. 2024;110(21).
doi:10.1103/physrevb.110.214115'
apa: 'Lee, C. S. J., Canalias, C., Buschbeck, R., Koppitz, B., Hempel, F., Amber,
Z., Eng, L. M., & Rüsing, M. (2024). Impact of ion exchange on vibrational
modes in Rb-doped KTiOPO4: A Raman spectroscopy study on the interplay between
ion exchange and polarization switching. Physical Review B, 110(21),
Article 214115. https://doi.org/10.1103/physrevb.110.214115'
bibtex: '@article{Lee_Canalias_Buschbeck_Koppitz_Hempel_Amber_Eng_Rüsing_2024, title={Impact
of ion exchange on vibrational modes in Rb-doped KTiOPO4: A Raman spectroscopy
study on the interplay between ion exchange and polarization switching}, volume={110},
DOI={10.1103/physrevb.110.214115},
number={21214115}, journal={Physical Review B}, publisher={American Physical Society
(APS)}, author={Lee, Cherrie S. J. and Canalias, Carlota and Buschbeck, Robin
and Koppitz, Boris and Hempel, Franz and Amber, Zeeshan and Eng, Lukas M. and
Rüsing, Michael}, year={2024} }'
chicago: 'Lee, Cherrie S. J., Carlota Canalias, Robin Buschbeck, Boris Koppitz,
Franz Hempel, Zeeshan Amber, Lukas M. Eng, and Michael Rüsing. “Impact of Ion
Exchange on Vibrational Modes in Rb-Doped KTiOPO4: A Raman Spectroscopy Study
on the Interplay between Ion Exchange and Polarization Switching.” Physical
Review B 110, no. 21 (2024). https://doi.org/10.1103/physrevb.110.214115.'
ieee: 'C. S. J. Lee et al., “Impact of ion exchange on vibrational modes
in Rb-doped KTiOPO4: A Raman spectroscopy study on the interplay between ion exchange
and polarization switching,” Physical Review B, vol. 110, no. 21, Art.
no. 214115, 2024, doi: 10.1103/physrevb.110.214115.'
mla: 'Lee, Cherrie S. J., et al. “Impact of Ion Exchange on Vibrational Modes in
Rb-Doped KTiOPO4: A Raman Spectroscopy Study on the Interplay between Ion Exchange
and Polarization Switching.” Physical Review B, vol. 110, no. 21, 214115,
American Physical Society (APS), 2024, doi:10.1103/physrevb.110.214115.'
short: C.S.J. Lee, C. Canalias, R. Buschbeck, B. Koppitz, F. Hempel, Z. Amber, L.M.
Eng, M. Rüsing, Physical Review B 110 (2024).
date_created: 2025-04-02T16:14:44Z
date_updated: 2025-04-02T16:18:34Z
department:
- _id: '288'
- _id: '15'
- _id: '623'
doi: 10.1103/physrevb.110.214115
intvolume: ' 110'
issue: '21'
language:
- iso: eng
publication: Physical Review B
publication_identifier:
issn:
- 2469-9950
- 2469-9969
publication_status: published
publisher: American Physical Society (APS)
status: public
title: 'Impact of ion exchange on vibrational modes in Rb-doped KTiOPO4: A Raman spectroscopy
study on the interplay between ion exchange and polarization switching'
type: journal_article
user_id: '22501'
volume: 110
year: '2024'
...
---
_id: '59275'
abstract:
- lang: eng
text: Studying and understanding many‐body interactions, particularly electron‐boson
interactions, is essential for a deeper elucidation of fundamental physical phenomena
and the development of novel material functionalities. Here, this aspect is explored
in the weak itinerant ferromagnet LaCo2P2 by means of momentum‐resolved photoelectron
spectroscopy (ARPES) and first‐principles calculations. The detailed ARPES patterns
enable to unveil bulk and surface bands, spin splittings due to Rashba and exchange
interactions, as well as the evolution of bands with temperature, which altogether
creates a solid foundation for theoretical studies. The latter has allowed to
establish the impact of electron‐boson interactions on the electronic structure,
that are reflected in its strong renormalization driven by electron‐magnon interaction
and the emergence of distinctive kinks of surface and bulk electron bands due
to significant electron‐phonon coupling. Our results highlight the distinct impact
of electron‐boson interactions on the electronic structure, particularly on the
itinerant d states. Similar electronic states are observed in the isostructural
iron pnictides, where electron‐boson interactions play a crucial role in the emergence
of superconductivity. It is believed that further studies of material systems
involving both magnetically active d‐ and f‐sublattices will reveal more advanced
phenomena in the bulk and at distinct surfaces, driven by a combination of factors
including Rashba and Kondo effects, exchange magnetism, and electron‐boson interactions.
author:
- first_name: D. Yu.
full_name: Usachov, D. Yu.
last_name: Usachov
- first_name: K.
full_name: Ali, K.
last_name: Ali
- first_name: G.
full_name: Poelchen, G.
last_name: Poelchen
- first_name: M.
full_name: Mende, M.
last_name: Mende
- first_name: S.
full_name: Schulz, S.
last_name: Schulz
- first_name: M.
full_name: Peters, M.
last_name: Peters
- first_name: K.
full_name: Bokai, K.
last_name: Bokai
- first_name: I. Yu.
full_name: Sklyadneva, I. Yu.
last_name: Sklyadneva
- first_name: V.
full_name: Stolyarov, V.
last_name: Stolyarov
- first_name: E. V.
full_name: Chulkov, E. V.
last_name: Chulkov
- first_name: K.
full_name: Kliemt, K.
last_name: Kliemt
- first_name: S.
full_name: Paischer, S.
last_name: Paischer
- first_name: P. A.
full_name: Buczek, P. A.
last_name: Buczek
- first_name: R.
full_name: Heid, R.
last_name: Heid
- first_name: F.
full_name: Hempel, F.
last_name: Hempel
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
- first_name: A.
full_name: Ernst, A.
last_name: Ernst
- first_name: C.
full_name: Krellner, C.
last_name: Krellner
- first_name: S. V.
full_name: Eremeev, S. V.
last_name: Eremeev
- first_name: D. V.
full_name: Vyalikh, D. V.
last_name: Vyalikh
citation:
ama: Usachov DYu, Ali K, Poelchen G, et al. Unveiling Electron‐Phonon and Electron‐Magnon
Interactions in the Weak Itinerant Ferromagnet LaCo2P2. Advanced Physics Research.
Published online 2024. doi:10.1002/apxr.202400137
apa: Usachov, D. Yu., Ali, K., Poelchen, G., Mende, M., Schulz, S., Peters, M.,
Bokai, K., Sklyadneva, I. Yu., Stolyarov, V., Chulkov, E. V., Kliemt, K., Paischer,
S., Buczek, P. A., Heid, R., Hempel, F., Rüsing, M., Ernst, A., Krellner, C.,
Eremeev, S. V., & Vyalikh, D. V. (2024). Unveiling Electron‐Phonon and Electron‐Magnon
Interactions in the Weak Itinerant Ferromagnet LaCo2P2. Advanced Physics Research.
https://doi.org/10.1002/apxr.202400137
bibtex: '@article{Usachov_Ali_Poelchen_Mende_Schulz_Peters_Bokai_Sklyadneva_Stolyarov_Chulkov_et
al._2024, title={Unveiling Electron‐Phonon and Electron‐Magnon Interactions in
the Weak Itinerant Ferromagnet LaCo2P2}, DOI={10.1002/apxr.202400137},
journal={Advanced Physics Research}, publisher={Wiley}, author={Usachov, D. Yu.
and Ali, K. and Poelchen, G. and Mende, M. and Schulz, S. and Peters, M. and Bokai,
K. and Sklyadneva, I. Yu. and Stolyarov, V. and Chulkov, E. V. and et al.}, year={2024}
}'
chicago: Usachov, D. Yu., K. Ali, G. Poelchen, M. Mende, S. Schulz, M. Peters, K.
Bokai, et al. “Unveiling Electron‐Phonon and Electron‐Magnon Interactions in the
Weak Itinerant Ferromagnet LaCo2P2.” Advanced Physics Research, 2024. https://doi.org/10.1002/apxr.202400137.
ieee: 'D. Yu. Usachov et al., “Unveiling Electron‐Phonon and Electron‐Magnon
Interactions in the Weak Itinerant Ferromagnet LaCo2P2,” Advanced Physics Research,
2024, doi: 10.1002/apxr.202400137.'
mla: Usachov, D. Yu., et al. “Unveiling Electron‐Phonon and Electron‐Magnon Interactions
in the Weak Itinerant Ferromagnet LaCo2P2.” Advanced Physics Research,
Wiley, 2024, doi:10.1002/apxr.202400137.
short: D.Yu. Usachov, K. Ali, G. Poelchen, M. Mende, S. Schulz, M. Peters, K. Bokai,
I.Yu. Sklyadneva, V. Stolyarov, E.V. Chulkov, K. Kliemt, S. Paischer, P.A. Buczek,
R. Heid, F. Hempel, M. Rüsing, A. Ernst, C. Krellner, S.V. Eremeev, D.V. Vyalikh,
Advanced Physics Research (2024).
date_created: 2025-04-02T16:18:56Z
date_updated: 2025-04-02T16:20:41Z
department:
- _id: '288'
- _id: '623'
- _id: '15'
doi: 10.1002/apxr.202400137
language:
- iso: eng
publication: Advanced Physics Research
publication_identifier:
issn:
- 2751-1200
- 2751-1200
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Unveiling Electron‐Phonon and Electron‐Magnon Interactions in the Weak Itinerant
Ferromagnet LaCo2P2
type: journal_article
user_id: '22501'
year: '2024'
...
---
_id: '54967'
abstract:
- lang: eng
text: 'Ferroelectric domain wall conductivity (DWC) is an intriguing and
promising functional property that can be elegantly controlled and steered through
a variety of external stimuli such as electric and mechanical fields. Optical-field
control, as a noninvasive and flexible tool, has rarely been applied so far, but
it significantly expands the possibility for both tuning and probing DWC. On the
one hand, as known from second-harmonic or Raman micro-spectroscopy, the optical
approach provides information on DW distribution and inclination, while simultaneously
probing the DW vibrational modes; on the other hand, photons might be applied
to directly generate charge carriers, thereby acting as a functional and spectrally
tunable probe to deduce the local absorption properties and bandgaps of conductive
DWs. Here, we report on investigating the photo-induced DWC (PI-DWC) of three
lithium niobate crystals, containing a very different number of DWs, namely: (A)
none, (B) one, and (C) many conductive DWs. All three samples are inspected for
their current–voltage behavior in darkness and for different illumination wavelengths
swept from 500 nm down to 310 nm. All samples show their maximum PI-DWC at 310 nm;
moreover, sample (C) reaches PI-DWCs of several microampere. Interestingly, a
noticeable PI-DWC is also observed for sub-bandgap illumination, hinting toward
the existence and decisive role of electronic in-gap states that contribute to
the electronic charge transport along DWs. Finally, complementary conductive atomic
force microscopy investigations under illumination proved that the PI-DWC indeed
is confined to the DW area and does not originate from photo-induced bulk conductivity.'
article_type: original
author:
- first_name: L. L.
full_name: Ding, L. L.
last_name: Ding
- first_name: E.
full_name: Beyreuther, E.
last_name: Beyreuther
- first_name: B.
full_name: Koppitz, B.
last_name: Koppitz
- first_name: K.
full_name: Kempf, K.
last_name: Kempf
- first_name: J. H.
full_name: Ren, J. H.
last_name: Ren
- first_name: W. J.
full_name: Chen, W. J.
last_name: Chen
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
- first_name: Y.
full_name: Zheng, Y.
last_name: Zheng
- first_name: L. M.
full_name: Eng, L. M.
last_name: Eng
citation:
ama: Ding LL, Beyreuther E, Koppitz B, et al. Comparative study of photo-induced
electronic transport along ferroelectric domain walls in lithium niobate single
crystals. Applied Physics Letters. 2024;124(25). doi:10.1063/5.0205877
apa: Ding, L. L., Beyreuther, E., Koppitz, B., Kempf, K., Ren, J. H., Chen, W. J.,
Rüsing, M., Zheng, Y., & Eng, L. M. (2024). Comparative study of photo-induced
electronic transport along ferroelectric domain walls in lithium niobate single
crystals. Applied Physics Letters, 124(25). https://doi.org/10.1063/5.0205877
bibtex: '@article{Ding_Beyreuther_Koppitz_Kempf_Ren_Chen_Rüsing_Zheng_Eng_2024,
title={Comparative study of photo-induced electronic transport along ferroelectric
domain walls in lithium niobate single crystals}, volume={124}, DOI={10.1063/5.0205877},
number={25}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Ding,
L. L. and Beyreuther, E. and Koppitz, B. and Kempf, K. and Ren, J. H. and Chen,
W. J. and Rüsing, Michael and Zheng, Y. and Eng, L. M.}, year={2024} }'
chicago: Ding, L. L., E. Beyreuther, B. Koppitz, K. Kempf, J. H. Ren, W. J. Chen,
Michael Rüsing, Y. Zheng, and L. M. Eng. “Comparative Study of Photo-Induced Electronic
Transport along Ferroelectric Domain Walls in Lithium Niobate Single Crystals.”
Applied Physics Letters 124, no. 25 (2024). https://doi.org/10.1063/5.0205877.
ieee: 'L. L. Ding et al., “Comparative study of photo-induced electronic
transport along ferroelectric domain walls in lithium niobate single crystals,”
Applied Physics Letters, vol. 124, no. 25, 2024, doi: 10.1063/5.0205877.'
mla: Ding, L. L., et al. “Comparative Study of Photo-Induced Electronic Transport
along Ferroelectric Domain Walls in Lithium Niobate Single Crystals.” Applied
Physics Letters, vol. 124, no. 25, AIP Publishing, 2024, doi:10.1063/5.0205877.
short: L.L. Ding, E. Beyreuther, B. Koppitz, K. Kempf, J.H. Ren, W.J. Chen, M. Rüsing,
Y. Zheng, L.M. Eng, Applied Physics Letters 124 (2024).
date_created: 2024-07-01T21:03:23Z
date_updated: 2025-04-03T12:35:17Z
department:
- _id: '15'
- _id: '169'
- _id: '623'
doi: 10.1063/5.0205877
intvolume: ' 124'
issue: '25'
language:
- iso: eng
main_file_link:
- url: https://doi.org/10.1063/5.0205877
publication: Applied Physics Letters
publication_identifier:
issn:
- 0003-6951
- 1077-3118
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
status: public
title: Comparative study of photo-induced electronic transport along ferroelectric
domain walls in lithium niobate single crystals
type: journal_article
user_id: '22501'
volume: 124
year: '2024'
...
---
_id: '54966'
abstract:
- lang: eng
text: Piezoresponse force microscopy (PFM) is one of the most widespread methods
for investigating and visualizing ferroelectric domain structures down to the
nanometer length scale. PFM makes use of the direct coupling of the piezoelectric
response to the crystal lattice, and hence, it is most often applied to spatially
map the three-dimensional (3D) near-surface domain distribution of any polar or
ferroic sample. Nonetheless, since most samples investigated by PFM are at least
semiconducting or fully insulating, the electric ac field emerging from the conductive
scanning force microscopy (SFM) tip penetrates the sample and, hence, may also
couple to polar features that are deeply buried into the bulk of the sample under
investigation. Thus, in the work presented here, we experimentally and theoretically
explore the contrast and depth resolution capabilities of PFM, by analyzing the
dependence of several key parameters. These key parameters include the depth of
the buried feature, i.e., here a domain wall (DW), as well as PFM-relevant technical
parameters such as the tip radius, the PFM drive voltage and frequency, and the
signal-to-noise ratio. The theoretical predictions are experimentally verified
using x-cut periodically poled lithium niobate single crystals that are specially
prepared into wedge-shaped samples, in order to allow the buried feature, here
the DW, to be “positioned” at any depth into the bulk. This inspection essentially
contributes to the fundamental understanding in PFM contrast analysis and to the
reconstruction of 3D domain structures down to a 1 μm-penetration depth into the
sample.
article_type: original
author:
- first_name: Matthias
full_name: Roeper, Matthias
last_name: Roeper
- first_name: Samuel D.
full_name: Seddon, Samuel D.
last_name: Seddon
- first_name: Zeeshan H.
full_name: Amber, Zeeshan H.
last_name: Amber
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
- first_name: Lukas M.
full_name: Eng, Lukas M.
last_name: Eng
citation:
ama: Roeper M, Seddon SD, Amber ZH, Rüsing M, Eng LM. Depth resolution in piezoresponse
force microscopy. Journal of Applied Physics. 2024;135(22). doi:10.1063/5.0206784
apa: Roeper, M., Seddon, S. D., Amber, Z. H., Rüsing, M., & Eng, L. M. (2024).
Depth resolution in piezoresponse force microscopy. Journal of Applied Physics,
135(22). https://doi.org/10.1063/5.0206784
bibtex: '@article{Roeper_Seddon_Amber_Rüsing_Eng_2024, title={Depth resolution in
piezoresponse force microscopy}, volume={135}, DOI={10.1063/5.0206784},
number={22}, journal={Journal of Applied Physics}, publisher={AIP Publishing},
author={Roeper, Matthias and Seddon, Samuel D. and Amber, Zeeshan H. and Rüsing,
Michael and Eng, Lukas M.}, year={2024} }'
chicago: Roeper, Matthias, Samuel D. Seddon, Zeeshan H. Amber, Michael Rüsing, and
Lukas M. Eng. “Depth Resolution in Piezoresponse Force Microscopy.” Journal
of Applied Physics 135, no. 22 (2024). https://doi.org/10.1063/5.0206784.
ieee: 'M. Roeper, S. D. Seddon, Z. H. Amber, M. Rüsing, and L. M. Eng, “Depth resolution
in piezoresponse force microscopy,” Journal of Applied Physics, vol. 135,
no. 22, 2024, doi: 10.1063/5.0206784.'
mla: Roeper, Matthias, et al. “Depth Resolution in Piezoresponse Force Microscopy.”
Journal of Applied Physics, vol. 135, no. 22, AIP Publishing, 2024, doi:10.1063/5.0206784.
short: M. Roeper, S.D. Seddon, Z.H. Amber, M. Rüsing, L.M. Eng, Journal of Applied
Physics 135 (2024).
date_created: 2024-07-01T21:00:43Z
date_updated: 2025-04-03T12:35:34Z
department:
- _id: '15'
- _id: '169'
- _id: '288'
- _id: '623'
doi: 10.1063/5.0206784
intvolume: ' 135'
issue: '22'
keyword:
- Ferroelectrics
- lithium niobate
- piezoresponse force microscopy
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1063/5.0206784
oa: '1'
publication: Journal of Applied Physics
publication_identifier:
issn:
- 0021-8979
- 1089-7550
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
status: public
title: Depth resolution in piezoresponse force microscopy
type: journal_article
user_id: '22501'
volume: 135
year: '2024'
...
---
_id: '59259'
author:
- first_name: Tobias
full_name: Schwabe, Tobias
id: '39217'
last_name: Schwabe
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
- first_name: Niels
full_name: Staal, Niels
last_name: Staal
- first_name: Max
full_name: Schwengelbeck, Max
last_name: Schwengelbeck
- first_name: Laura
full_name: Bollmers, Laura
id: '61375'
last_name: Bollmers
- first_name: Laura
full_name: Padberg, Laura
id: '40300'
last_name: Padberg
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: '0000-0002-5950-6618 '
citation:
ama: Schwabe T, Rüsing M, Staal N, et al. Quantum Photonic Systems in CMOS Compatible
Silicon Nitride Technology . Zenodo; 2024. doi:10.5281/zenodo.15124929
apa: Schwabe, T., Rüsing, M., Staal, N., Schwengelbeck, M., Bollmers, L., Padberg,
L., Eigner, C., Silberhorn, C., & Scheytt, J. C. (2024). Quantum photonic
systems in CMOS compatible silicon nitride technology . Zenodo. https://doi.org/10.5281/zenodo.15124929
bibtex: '@book{Schwabe_Rüsing_Staal_Schwengelbeck_Bollmers_Padberg_Eigner_Silberhorn_Scheytt_2024,
title={Quantum photonic systems in CMOS compatible silicon nitride technology
}, DOI={10.5281/zenodo.15124929},
publisher={Zenodo}, author={Schwabe, Tobias and Rüsing, Michael and Staal, Niels
and Schwengelbeck, Max and Bollmers, Laura and Padberg, Laura and Eigner, Christof
and Silberhorn, Christine and Scheytt, J. Christoph}, year={2024} }'
chicago: Schwabe, Tobias, Michael Rüsing, Niels Staal, Max Schwengelbeck, Laura
Bollmers, Laura Padberg, Christof Eigner, Christine Silberhorn, and J. Christoph
Scheytt. Quantum Photonic Systems in CMOS Compatible Silicon Nitride Technology
. Zenodo, 2024. https://doi.org/10.5281/zenodo.15124929.
ieee: T. Schwabe et al., Quantum photonic systems in CMOS compatible silicon
nitride technology . Zenodo, 2024.
mla: Schwabe, Tobias, et al. Quantum Photonic Systems in CMOS Compatible Silicon
Nitride Technology . Zenodo, 2024, doi:10.5281/zenodo.15124929.
short: T. Schwabe, M. Rüsing, N. Staal, M. Schwengelbeck, L. Bollmers, L. Padberg,
C. Eigner, C. Silberhorn, J.C. Scheytt, Quantum Photonic Systems in CMOS Compatible
Silicon Nitride Technology , Zenodo, 2024.
date_created: 2025-04-02T11:24:23Z
date_updated: 2025-04-03T12:34:56Z
department:
- _id: '288'
- _id: '15'
- _id: '623'
doi: 10.5281/zenodo.15124929
language:
- iso: eng
publisher: Zenodo
status: public
title: 'Quantum photonic systems in CMOS compatible silicon nitride technology '
type: misc
user_id: '22501'
year: '2024'
...
---
_id: '61251'
abstract:
- lang: eng
text: We theoretically investigate strategies for the deterministic creation
of trains of time-bin entangled photons using an individual quantum emitter described
by a Λ-type electronic system. We explicitly demonstrate the theoretical generation
of linear cluster states with substantial numbers of entangled photonic qubits
in full microscopic numerical simulations. The underlying scheme is based on the
manipulation of ground state coherences through precise optical driving. One important
finding is that the most easily accessible quality metrics, the achievable rotation
fidelities, fall short in assessing the actual quantum correlations of the emitted
photons in the face of losses. To address this, we explicitly calculate stabilizer
generator expectation values as a superior gauge for the quantum properties of
the generated many-photon state. With widespread applicability in other emitter
and excitation–emission schemes also, our work lays the conceptual foundations
for an in-depth practical analysis of time-bin entanglement based on full numerical
simulations with predictive capabilities for realistic systems and setups, including
losses and imperfections. The specific results shown in the present work illustrate
that with controlled minimization of losses and realistic system parameters for
quantum-dot type systems, useful linear cluster states of significant lengths
can be generated in the calculations, discussing the possibility of scalability
for quantum information processing endeavors.
article_number: '036110'
author:
- first_name: David
full_name: Bauch, David
last_name: Bauch
- first_name: Nikolas
full_name: Köcher, Nikolas
id: '79191'
last_name: Köcher
- first_name: Nils
full_name: Heinisch, Nils
id: '90283'
last_name: Heinisch
orcid: 0009-0006-0984-2097
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
citation:
ama: Bauch D, Köcher N, Heinisch N, Schumacher S. Time-bin entanglement in the deterministic
generation of linear photonic cluster states. APL Quantum. 2024;1(3). doi:10.1063/5.0214197
apa: Bauch, D., Köcher, N., Heinisch, N., & Schumacher, S. (2024). Time-bin
entanglement in the deterministic generation of linear photonic cluster states.
APL Quantum, 1(3), Article 036110. https://doi.org/10.1063/5.0214197
bibtex: '@article{Bauch_Köcher_Heinisch_Schumacher_2024, title={Time-bin entanglement
in the deterministic generation of linear photonic cluster states}, volume={1},
DOI={10.1063/5.0214197}, number={3036110},
journal={APL Quantum}, publisher={AIP Publishing}, author={Bauch, David and Köcher,
Nikolas and Heinisch, Nils and Schumacher, Stefan}, year={2024} }'
chicago: Bauch, David, Nikolas Köcher, Nils Heinisch, and Stefan Schumacher. “Time-Bin
Entanglement in the Deterministic Generation of Linear Photonic Cluster States.”
APL Quantum 1, no. 3 (2024). https://doi.org/10.1063/5.0214197.
ieee: 'D. Bauch, N. Köcher, N. Heinisch, and S. Schumacher, “Time-bin entanglement
in the deterministic generation of linear photonic cluster states,” APL Quantum,
vol. 1, no. 3, Art. no. 036110, 2024, doi: 10.1063/5.0214197.'
mla: Bauch, David, et al. “Time-Bin Entanglement in the Deterministic Generation
of Linear Photonic Cluster States.” APL Quantum, vol. 1, no. 3, 036110,
AIP Publishing, 2024, doi:10.1063/5.0214197.
short: D. Bauch, N. Köcher, N. Heinisch, S. Schumacher, APL Quantum 1 (2024).
date_created: 2025-09-12T11:08:59Z
date_updated: 2025-09-12T11:11:32Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '35'
- _id: '230'
- _id: '27'
- _id: '429'
- _id: '623'
doi: 10.1063/5.0214197
intvolume: ' 1'
issue: '3'
language:
- iso: eng
project:
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
- _id: '56'
name: TRR 142 - Project Area C
- _id: '173'
name: 'TRR 142; TP C09: Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch
bei Telekom Wellenlängen'
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '266'
name: 'PhoQC: Photonisches Quantencomputing'
publication: APL Quantum
publication_identifier:
issn:
- 2835-0103
publication_status: published
publisher: AIP Publishing
status: public
title: Time-bin entanglement in the deterministic generation of linear photonic cluster
states
type: journal_article
user_id: '16199'
volume: 1
year: '2024'
...
---
_id: '56267'
author:
- first_name: Laura
full_name: Serino, Laura
id: '88242'
last_name: Serino
- first_name: Werner
full_name: Ridder, Werner
id: '63574'
last_name: Ridder
- first_name: Abhinandan
full_name: Bhattacharjee, Abhinandan
id: '95902'
last_name: Bhattacharjee
- first_name: Jano
full_name: Gil López, Jano
id: '51223'
last_name: Gil López
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: 'Serino L, Ridder W, Bhattacharjee A, Gil López J, Brecht B, Silberhorn C.
Orchestrating time and color: a programmable source of high-dimensional entanglement.
Optica Quantum. Published online 2024. doi:10.1364/opticaq.532334'
apa: 'Serino, L., Ridder, W., Bhattacharjee, A., Gil López, J., Brecht, B., &
Silberhorn, C. (2024). Orchestrating time and color: a programmable source of
high-dimensional entanglement. Optica Quantum. https://doi.org/10.1364/opticaq.532334'
bibtex: '@article{Serino_Ridder_Bhattacharjee_Gil López_Brecht_Silberhorn_2024,
title={Orchestrating time and color: a programmable source of high-dimensional
entanglement}, DOI={10.1364/opticaq.532334},
journal={Optica Quantum}, publisher={Optica Publishing Group}, author={Serino,
Laura and Ridder, Werner and Bhattacharjee, Abhinandan and Gil López, Jano and
Brecht, Benjamin and Silberhorn, Christine}, year={2024} }'
chicago: 'Serino, Laura, Werner Ridder, Abhinandan Bhattacharjee, Jano Gil López,
Benjamin Brecht, and Christine Silberhorn. “Orchestrating Time and Color: A Programmable
Source of High-Dimensional Entanglement.” Optica Quantum, 2024. https://doi.org/10.1364/opticaq.532334.'
ieee: 'L. Serino, W. Ridder, A. Bhattacharjee, J. Gil López, B. Brecht, and C. Silberhorn,
“Orchestrating time and color: a programmable source of high-dimensional entanglement,”
Optica Quantum, 2024, doi: 10.1364/opticaq.532334.'
mla: 'Serino, Laura, et al. “Orchestrating Time and Color: A Programmable Source
of High-Dimensional Entanglement.” Optica Quantum, Optica Publishing Group,
2024, doi:10.1364/opticaq.532334.'
short: L. Serino, W. Ridder, A. Bhattacharjee, J. Gil López, B. Brecht, C. Silberhorn,
Optica Quantum (2024).
date_created: 2024-09-27T11:46:59Z
date_updated: 2025-12-01T08:49:46Z
department:
- _id: '288'
- _id: '623'
- _id: '288'
doi: 10.1364/opticaq.532334
language:
- iso: eng
project:
- _id: '211'
name: 'QuICHE: Quanteninformation und Quantenkommunikation mit hochdimensionaler
Informationskodierung (QuICHE)'
publication: Optica Quantum
publication_identifier:
issn:
- 2837-6714
publication_status: published
publisher: Optica Publishing Group
status: public
title: 'Orchestrating time and color: a programmable source of high-dimensional entanglement'
type: journal_article
user_id: '63574'
year: '2024'
...
---
_id: '62849'
abstract:
- lang: eng
text: AbstractAn on-demand source of bright entangled
photon pairs is desirable for quantum key distribution (QKD) and quantum repeaters.
The leading candidate to generate such pairs is based on spontaneous parametric
down-conversion (SPDC) in non-linear crystals. However, its pair extraction efficiency
is limited to 0.1% when operating at near-unity fidelity due to multiphoton emission
at high brightness. Quantum dots in photonic nanostructures can in principle overcome
this limit, but the devices with high entanglement fidelity (99%) have low pair
extraction efficiency (0.01%). Here, we show a measured peak entanglement fidelity
of 97.5% ± 0.8% and pair extraction efficiency of 0.65% from an InAsP quantum
dot in an InP photonic nanowire waveguide. We show that the generated oscillating
two-photon Bell state can establish a secure key for peer-to-peer QKD. Using our
time-resolved QKD scheme alleviates the need to remove the quantum dot energy
splitting of the intermediate exciton states in the biexciton-exciton cascade.
article_number: '62'
author:
- first_name: Matteo
full_name: Pennacchietti, Matteo
last_name: Pennacchietti
- first_name: Brady
full_name: Cunard, Brady
last_name: Cunard
- first_name: Shlok
full_name: Nahar, Shlok
last_name: Nahar
- first_name: Mohd
full_name: Zeeshan, Mohd
last_name: Zeeshan
- first_name: Sayan
full_name: Gangopadhyay, Sayan
last_name: Gangopadhyay
- first_name: Philip J.
full_name: Poole, Philip J.
last_name: Poole
- first_name: Dan
full_name: Dalacu, Dan
last_name: Dalacu
- first_name: Andreas
full_name: Fognini, Andreas
last_name: Fognini
- first_name: Klaus
full_name: Jöns, Klaus
id: '85353'
last_name: Jöns
- first_name: Val
full_name: Zwiller, Val
last_name: Zwiller
- first_name: Thomas
full_name: Jennewein, Thomas
last_name: Jennewein
- first_name: Norbert
full_name: Lütkenhaus, Norbert
last_name: Lütkenhaus
- first_name: Michael E.
full_name: Reimer, Michael E.
last_name: Reimer
citation:
ama: Pennacchietti M, Cunard B, Nahar S, et al. Oscillating photonic Bell state
from a semiconductor quantum dot for quantum key distribution. Communications
Physics. 2024;7(1). doi:10.1038/s42005-024-01547-3
apa: Pennacchietti, M., Cunard, B., Nahar, S., Zeeshan, M., Gangopadhyay, S., Poole,
P. J., Dalacu, D., Fognini, A., Jöns, K., Zwiller, V., Jennewein, T., Lütkenhaus,
N., & Reimer, M. E. (2024). Oscillating photonic Bell state from a semiconductor
quantum dot for quantum key distribution. Communications Physics, 7(1),
Article 62. https://doi.org/10.1038/s42005-024-01547-3
bibtex: '@article{Pennacchietti_Cunard_Nahar_Zeeshan_Gangopadhyay_Poole_Dalacu_Fognini_Jöns_Zwiller_et
al._2024, title={Oscillating photonic Bell state from a semiconductor quantum
dot for quantum key distribution}, volume={7}, DOI={10.1038/s42005-024-01547-3},
number={162}, journal={Communications Physics}, publisher={Springer Science and
Business Media LLC}, author={Pennacchietti, Matteo and Cunard, Brady and Nahar,
Shlok and Zeeshan, Mohd and Gangopadhyay, Sayan and Poole, Philip J. and Dalacu,
Dan and Fognini, Andreas and Jöns, Klaus and Zwiller, Val and et al.}, year={2024}
}'
chicago: Pennacchietti, Matteo, Brady Cunard, Shlok Nahar, Mohd Zeeshan, Sayan Gangopadhyay,
Philip J. Poole, Dan Dalacu, et al. “Oscillating Photonic Bell State from a Semiconductor
Quantum Dot for Quantum Key Distribution.” Communications Physics 7, no.
1 (2024). https://doi.org/10.1038/s42005-024-01547-3.
ieee: 'M. Pennacchietti et al., “Oscillating photonic Bell state from a semiconductor
quantum dot for quantum key distribution,” Communications Physics, vol.
7, no. 1, Art. no. 62, 2024, doi: 10.1038/s42005-024-01547-3.'
mla: Pennacchietti, Matteo, et al. “Oscillating Photonic Bell State from a Semiconductor
Quantum Dot for Quantum Key Distribution.” Communications Physics, vol.
7, no. 1, 62, Springer Science and Business Media LLC, 2024, doi:10.1038/s42005-024-01547-3.
short: M. Pennacchietti, B. Cunard, S. Nahar, M. Zeeshan, S. Gangopadhyay, P.J.
Poole, D. Dalacu, A. Fognini, K. Jöns, V. Zwiller, T. Jennewein, N. Lütkenhaus,
M.E. Reimer, Communications Physics 7 (2024).
date_created: 2025-12-04T12:03:50Z
date_updated: 2025-12-04T12:23:54Z
department:
- _id: '623'
doi: 10.1038/s42005-024-01547-3
intvolume: ' 7'
issue: '1'
language:
- iso: eng
publication: Communications Physics
publication_identifier:
issn:
- 2399-3650
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Oscillating photonic Bell state from a semiconductor quantum dot for quantum
key distribution
type: journal_article
user_id: '48188'
volume: 7
year: '2024'
...
---
_id: '62852'
author:
- first_name: Samuel
full_name: Gyger, Samuel
last_name: Gyger
- first_name: Max
full_name: Tao, Max
last_name: Tao
- first_name: Marco
full_name: Colangelo, Marco
last_name: Colangelo
- first_name: Ian
full_name: Christen, Ian
last_name: Christen
- first_name: Hugo
full_name: Larocque, Hugo
last_name: Larocque
- first_name: Julian
full_name: Zichi, Julian
last_name: Zichi
- first_name: Lucas
full_name: Schweickert, Lucas
last_name: Schweickert
- first_name: Ali
full_name: Elshaari, Ali
last_name: Elshaari
- first_name: Stephan
full_name: Steinhauer, Stephan
last_name: Steinhauer
- first_name: Saimon
full_name: Covre da Silva, Saimon
last_name: Covre da Silva
- first_name: Armando
full_name: Rastelli, Armando
last_name: Rastelli
- first_name: Hamed
full_name: Sattari, Hamed
last_name: Sattari
- first_name: Gregory
full_name: Chong, Gregory
last_name: Chong
- first_name: Yves
full_name: Pétremand, Yves
last_name: Pétremand
- first_name: Ivan
full_name: Prieto, Ivan
last_name: Prieto
- first_name: Yang
full_name: Yu, Yang
last_name: Yu
- first_name: Amir
full_name: Ghadimi, Amir
last_name: Ghadimi
- first_name: Dirk
full_name: Englund, Dirk
last_name: Englund
- first_name: Klaus
full_name: Jöns, Klaus
id: '85353'
last_name: Jöns
- first_name: Val
full_name: Zwiller, Val
last_name: Zwiller
- first_name: Carlos
full_name: Errando Herranz, Carlos
last_name: Errando Herranz
citation:
ama: 'Gyger S, Tao M, Colangelo M, et al. Integrating superconducting single-photon
detectors into active photonic circuits. In: Hemmer PR, Migdall AL, eds. Quantum
Computing, Communication, and Simulation IV. SPIE; 2024. doi:10.1117/12.3009736'
apa: Gyger, S., Tao, M., Colangelo, M., Christen, I., Larocque, H., Zichi, J., Schweickert,
L., Elshaari, A., Steinhauer, S., Covre da Silva, S., Rastelli, A., Sattari, H.,
Chong, G., Pétremand, Y., Prieto, I., Yu, Y., Ghadimi, A., Englund, D., Jöns,
K., … Errando Herranz, C. (2024). Integrating superconducting single-photon detectors
into active photonic circuits. In P. R. Hemmer & A. L. Migdall (Eds.), Quantum
Computing, Communication, and Simulation IV. SPIE. https://doi.org/10.1117/12.3009736
bibtex: '@inproceedings{Gyger_Tao_Colangelo_Christen_Larocque_Zichi_Schweickert_Elshaari_Steinhauer_Covre
da Silva_et al._2024, title={Integrating superconducting single-photon detectors
into active photonic circuits}, DOI={10.1117/12.3009736},
booktitle={Quantum Computing, Communication, and Simulation IV}, publisher={SPIE},
author={Gyger, Samuel and Tao, Max and Colangelo, Marco and Christen, Ian and
Larocque, Hugo and Zichi, Julian and Schweickert, Lucas and Elshaari, Ali and
Steinhauer, Stephan and Covre da Silva, Saimon and et al.}, editor={Hemmer, Philip
R. and Migdall, Alan L.}, year={2024} }'
chicago: Gyger, Samuel, Max Tao, Marco Colangelo, Ian Christen, Hugo Larocque, Julian
Zichi, Lucas Schweickert, et al. “Integrating Superconducting Single-Photon Detectors
into Active Photonic Circuits.” In Quantum Computing, Communication, and Simulation
IV, edited by Philip R. Hemmer and Alan L. Migdall. SPIE, 2024. https://doi.org/10.1117/12.3009736.
ieee: 'S. Gyger et al., “Integrating superconducting single-photon detectors
into active photonic circuits,” in Quantum Computing, Communication, and Simulation
IV, 2024, doi: 10.1117/12.3009736.'
mla: Gyger, Samuel, et al. “Integrating Superconducting Single-Photon Detectors
into Active Photonic Circuits.” Quantum Computing, Communication, and Simulation
IV, edited by Philip R. Hemmer and Alan L. Migdall, SPIE, 2024, doi:10.1117/12.3009736.
short: 'S. Gyger, M. Tao, M. Colangelo, I. Christen, H. Larocque, J. Zichi, L. Schweickert,
A. Elshaari, S. Steinhauer, S. Covre da Silva, A. Rastelli, H. Sattari, G. Chong,
Y. Pétremand, I. Prieto, Y. Yu, A. Ghadimi, D. Englund, K. Jöns, V. Zwiller, C.
Errando Herranz, in: P.R. Hemmer, A.L. Migdall (Eds.), Quantum Computing, Communication,
and Simulation IV, SPIE, 2024.'
date_created: 2025-12-04T12:07:37Z
date_updated: 2025-12-04T12:24:04Z
department:
- _id: '623'
doi: 10.1117/12.3009736
editor:
- first_name: Philip R.
full_name: Hemmer, Philip R.
last_name: Hemmer
- first_name: Alan L.
full_name: Migdall, Alan L.
last_name: Migdall
language:
- iso: eng
publication: Quantum Computing, Communication, and Simulation IV
publication_status: published
publisher: SPIE
status: public
title: Integrating superconducting single-photon detectors into active photonic circuits
type: conference
user_id: '48188'
year: '2024'
...
---
_id: '62850'
author:
- first_name: Telsche
full_name: Mikitta, Telsche
last_name: Mikitta
- first_name: Ana
full_name: Cutuk, Ana
last_name: Cutuk
- first_name: Michael
full_name: Jetter, Michael
last_name: Jetter
- first_name: Peter
full_name: Michler, Peter
last_name: Michler
- first_name: Klaus
full_name: Jöns, Klaus
id: '85353'
last_name: Jöns
- first_name: Hermann
full_name: Kahle, Hermann
last_name: Kahle
citation:
ama: 'Mikitta T, Cutuk A, Jetter M, Michler P, Jöns K, Kahle H. Membrane external-cavity
surface-emitting lasers (MECSELs) optimized for double-side-pumping: a first fundamental
single-side pumping characterization. In: Keller U, ed. Vertical External Cavity
Surface Emitting Lasers (VECSELs) XIII. SPIE; 2024. doi:10.1117/12.3002481'
apa: 'Mikitta, T., Cutuk, A., Jetter, M., Michler, P., Jöns, K., & Kahle, H.
(2024). Membrane external-cavity surface-emitting lasers (MECSELs) optimized for
double-side-pumping: a first fundamental single-side pumping characterization.
In U. Keller (Ed.), Vertical External Cavity Surface Emitting Lasers (VECSELs)
XIII. SPIE. https://doi.org/10.1117/12.3002481'
bibtex: '@inproceedings{Mikitta_Cutuk_Jetter_Michler_Jöns_Kahle_2024, title={Membrane
external-cavity surface-emitting lasers (MECSELs) optimized for double-side-pumping:
a first fundamental single-side pumping characterization}, DOI={10.1117/12.3002481},
booktitle={Vertical External Cavity Surface Emitting Lasers (VECSELs) XIII}, publisher={SPIE},
author={Mikitta, Telsche and Cutuk, Ana and Jetter, Michael and Michler, Peter
and Jöns, Klaus and Kahle, Hermann}, editor={Keller, Ursula}, year={2024} }'
chicago: 'Mikitta, Telsche, Ana Cutuk, Michael Jetter, Peter Michler, Klaus Jöns,
and Hermann Kahle. “Membrane External-Cavity Surface-Emitting Lasers (MECSELs)
Optimized for Double-Side-Pumping: A First Fundamental Single-Side Pumping Characterization.”
In Vertical External Cavity Surface Emitting Lasers (VECSELs) XIII, edited
by Ursula Keller. SPIE, 2024. https://doi.org/10.1117/12.3002481.'
ieee: 'T. Mikitta, A. Cutuk, M. Jetter, P. Michler, K. Jöns, and H. Kahle, “Membrane
external-cavity surface-emitting lasers (MECSELs) optimized for double-side-pumping:
a first fundamental single-side pumping characterization,” in Vertical External
Cavity Surface Emitting Lasers (VECSELs) XIII, 2024, doi: 10.1117/12.3002481.'
mla: 'Mikitta, Telsche, et al. “Membrane External-Cavity Surface-Emitting Lasers
(MECSELs) Optimized for Double-Side-Pumping: A First Fundamental Single-Side Pumping
Characterization.” Vertical External Cavity Surface Emitting Lasers (VECSELs)
XIII, edited by Ursula Keller, SPIE, 2024, doi:10.1117/12.3002481.'
short: 'T. Mikitta, A. Cutuk, M. Jetter, P. Michler, K. Jöns, H. Kahle, in: U. Keller
(Ed.), Vertical External Cavity Surface Emitting Lasers (VECSELs) XIII, SPIE,
2024.'
date_created: 2025-12-04T12:06:23Z
date_updated: 2025-12-04T12:24:00Z
department:
- _id: '623'
doi: 10.1117/12.3002481
editor:
- first_name: Ursula
full_name: Keller, Ursula
last_name: Keller
language:
- iso: eng
publication: Vertical External Cavity Surface Emitting Lasers (VECSELs) XIII
publication_status: published
publisher: SPIE
status: public
title: 'Membrane external-cavity surface-emitting lasers (MECSELs) optimized for double-side-pumping:
a first fundamental single-side pumping characterization'
type: conference
user_id: '48188'
year: '2024'
...
---
_id: '52876'
article_number: L012043
author:
- first_name: Christian
full_name: Arends, Christian
id: '43994'
last_name: Arends
- first_name: Lasse Lennart
full_name: Wolf, Lasse Lennart
id: '45027'
last_name: Wolf
orcid: 0000-0001-8893-2045
- first_name: Jasmin
full_name: Meinecke, Jasmin
last_name: Meinecke
- first_name: Sonja
full_name: Barkhofen, Sonja
id: '48188'
last_name: Barkhofen
- first_name: Tobias
full_name: Weich, Tobias
id: '49178'
last_name: Weich
orcid: 0000-0002-9648-6919
- first_name: Tim
full_name: Bartley, Tim
id: '49683'
last_name: Bartley
citation:
ama: Arends C, Wolf LL, Meinecke J, Barkhofen S, Weich T, Bartley T. Decomposing
large unitaries into multimode devices of arbitrary size. Physical Review Research.
2024;6(1). doi:10.1103/physrevresearch.6.l012043
apa: Arends, C., Wolf, L. L., Meinecke, J., Barkhofen, S., Weich, T., & Bartley,
T. (2024). Decomposing large unitaries into multimode devices of arbitrary size.
Physical Review Research, 6(1), Article L012043. https://doi.org/10.1103/physrevresearch.6.l012043
bibtex: '@article{Arends_Wolf_Meinecke_Barkhofen_Weich_Bartley_2024, title={Decomposing
large unitaries into multimode devices of arbitrary size}, volume={6}, DOI={10.1103/physrevresearch.6.l012043},
number={1L012043}, journal={Physical Review Research}, publisher={American Physical
Society (APS)}, author={Arends, Christian and Wolf, Lasse Lennart and Meinecke,
Jasmin and Barkhofen, Sonja and Weich, Tobias and Bartley, Tim}, year={2024} }'
chicago: Arends, Christian, Lasse Lennart Wolf, Jasmin Meinecke, Sonja Barkhofen,
Tobias Weich, and Tim Bartley. “Decomposing Large Unitaries into Multimode Devices
of Arbitrary Size.” Physical Review Research 6, no. 1 (2024). https://doi.org/10.1103/physrevresearch.6.l012043.
ieee: 'C. Arends, L. L. Wolf, J. Meinecke, S. Barkhofen, T. Weich, and T. Bartley,
“Decomposing large unitaries into multimode devices of arbitrary size,” Physical
Review Research, vol. 6, no. 1, Art. no. L012043, 2024, doi: 10.1103/physrevresearch.6.l012043.'
mla: Arends, Christian, et al. “Decomposing Large Unitaries into Multimode Devices
of Arbitrary Size.” Physical Review Research, vol. 6, no. 1, L012043, American
Physical Society (APS), 2024, doi:10.1103/physrevresearch.6.l012043.
short: C. Arends, L.L. Wolf, J. Meinecke, S. Barkhofen, T. Weich, T. Bartley, Physical
Review Research 6 (2024).
date_created: 2024-03-26T08:52:05Z
date_updated: 2025-12-04T13:38:49Z
department:
- _id: '623'
- _id: '15'
doi: 10.1103/physrevresearch.6.l012043
intvolume: ' 6'
issue: '1'
keyword:
- General Physics and Astronomy
language:
- iso: eng
publication: Physical Review Research
publication_identifier:
issn:
- 2643-1564
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Decomposing large unitaries into multimode devices of arbitrary size
type: journal_article
user_id: '48188'
volume: 6
year: '2024'
...
---
_id: '62868'
abstract:
- lang: eng
text: We theoretically investigate strategies for the deterministic creation
of trains of time-bin entangled photons using an individual quantum emitter described
by a Λ-type electronic system. We explicitly demonstrate the theoretical generation
of linear cluster states with substantial numbers of entangled photonic qubits
in full microscopic numerical simulations. The underlying scheme is based on the
manipulation of ground state coherences through precise optical driving. One important
finding is that the most easily accessible quality metrics, the achievable rotation
fidelities, fall short in assessing the actual quantum correlations of the emitted
photons in the face of losses. To address this, we explicitly calculate stabilizer
generator expectation values as a superior gauge for the quantum properties of
the generated many-photon state. With widespread applicability in other emitter
and excitation–emission schemes also, our work lays the conceptual foundations
for an in-depth practical analysis of time-bin entanglement based on full numerical
simulations with predictive capabilities for realistic systems and setups, including
losses and imperfections. The specific results shown in the present work illustrate
that with controlled minimization of losses and realistic system parameters for
quantum-dot type systems, useful linear cluster states of significant lengths
can be generated in the calculations, discussing the possibility of scalability
for quantum information processing endeavors.
article_number: '036110'
author:
- first_name: David
full_name: Bauch, David
last_name: Bauch
- first_name: Nikolas
full_name: Köcher, Nikolas
id: '79191'
last_name: Köcher
- first_name: Nils
full_name: Heinisch, Nils
id: '90283'
last_name: Heinisch
orcid: 0009-0006-0984-2097
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
citation:
ama: Bauch D, Köcher N, Heinisch N, Schumacher S. Time-bin entanglement in the deterministic
generation of linear photonic cluster states. APL Quantum. 2024;1(3). doi:10.1063/5.0214197
apa: Bauch, D., Köcher, N., Heinisch, N., & Schumacher, S. (2024). Time-bin
entanglement in the deterministic generation of linear photonic cluster states.
APL Quantum, 1(3), Article 036110. https://doi.org/10.1063/5.0214197
bibtex: '@article{Bauch_Köcher_Heinisch_Schumacher_2024, title={Time-bin entanglement
in the deterministic generation of linear photonic cluster states}, volume={1},
DOI={10.1063/5.0214197}, number={3036110},
journal={APL Quantum}, publisher={AIP Publishing}, author={Bauch, David and Köcher,
Nikolas and Heinisch, Nils and Schumacher, Stefan}, year={2024} }'
chicago: Bauch, David, Nikolas Köcher, Nils Heinisch, and Stefan Schumacher. “Time-Bin
Entanglement in the Deterministic Generation of Linear Photonic Cluster States.”
APL Quantum 1, no. 3 (2024). https://doi.org/10.1063/5.0214197.
ieee: 'D. Bauch, N. Köcher, N. Heinisch, and S. Schumacher, “Time-bin entanglement
in the deterministic generation of linear photonic cluster states,” APL Quantum,
vol. 1, no. 3, Art. no. 036110, 2024, doi: 10.1063/5.0214197.'
mla: Bauch, David, et al. “Time-Bin Entanglement in the Deterministic Generation
of Linear Photonic Cluster States.” APL Quantum, vol. 1, no. 3, 036110,
AIP Publishing, 2024, doi:10.1063/5.0214197.
short: D. Bauch, N. Köcher, N. Heinisch, S. Schumacher, APL Quantum 1 (2024).
date_created: 2025-12-04T12:35:53Z
date_updated: 2025-12-05T13:55:00Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '705'
- _id: '35'
- _id: '27'
- _id: '429'
- _id: '230'
- _id: '623'
doi: 10.1063/5.0214197
intvolume: ' 1'
issue: '3'
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '173'
name: 'TRR 142; TP C09: Ideale Erzeugung von Photonenpaaren für Verschränkungsaustausch
bei Telekom Wellenlängen'
- _id: '266'
name: 'PhoQC: Photonisches Quantencomputing'
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
- _id: '56'
name: TRR 142 - Project Area C
publication: APL Quantum
publication_identifier:
issn:
- 2835-0103
publication_status: published
publisher: AIP Publishing
status: public
title: Time-bin entanglement in the deterministic generation of linear photonic cluster
states
type: journal_article
user_id: '16199'
volume: 1
year: '2024'
...
---
_id: '62853'
abstract:
- lang: eng
text: "Abstract\r\n Developing
coherent excitation methods for quantum emitters ensuring high brightness, optimal
single‐photon purity and indistinguishability of the emitted photons has been
a key challenge in the past years. While various methods have been proposed and
explored, they all have specific advantages and disadvantages. This study investigates
the dynamics of the recent swing‐up scheme as an excitation method for a two‐level
system and its performance in single‐photon generation. By applying two far red‐detuned
laser pulses, the two‐level system can be prepared in the excited state with near‐unity
fidelity. The successful operation and coherent character of this technique are
demonstrated using a semiconductor quantum dot (QD). Moreover, the multi‐dimensional
parameter space of the two laser pulses is explored to analyze its impact on excitation
fidelity. Finally, the performance of the scheme as an excitation method for generating
high‐quality single photons is analyzed. The swing‐up scheme itself proves effective,
exhibiting nearly perfect single‐photon purity, while the observed indistinguishability
in the studied sample is limited by the influence of the inevitable high excitation
powers on the semiconductor environment of the quantum dot."
article_number: '2300359'
author:
- first_name: Katarina
full_name: Boos, Katarina
last_name: Boos
- first_name: Friedrich
full_name: Sbresny, Friedrich
last_name: Sbresny
- first_name: Sang Kyu
full_name: Kim, Sang Kyu
last_name: Kim
- first_name: Malte
full_name: Kremser, Malte
last_name: Kremser
- first_name: Hubert
full_name: Riedl, Hubert
last_name: Riedl
- first_name: Frederik W.
full_name: Bopp, Frederik W.
last_name: Bopp
- first_name: William
full_name: Rauhaus, William
last_name: Rauhaus
- first_name: Bianca
full_name: Scaparra, Bianca
last_name: Scaparra
- first_name: Klaus
full_name: Jöns, Klaus
id: '85353'
last_name: Jöns
- first_name: Jonathan J.
full_name: Finley, Jonathan J.
last_name: Finley
- first_name: Kai
full_name: Müller, Kai
last_name: Müller
- first_name: Lukas
full_name: Hanschke, Lukas
last_name: Hanschke
citation:
ama: Boos K, Sbresny F, Kim SK, et al. Coherent Swing‐Up Excitation for Semiconductor
Quantum Dots. Advanced Quantum Technologies. 2024;7(4). doi:10.1002/qute.202300359
apa: Boos, K., Sbresny, F., Kim, S. K., Kremser, M., Riedl, H., Bopp, F. W., Rauhaus,
W., Scaparra, B., Jöns, K., Finley, J. J., Müller, K., & Hanschke, L. (2024).
Coherent Swing‐Up Excitation for Semiconductor Quantum Dots. Advanced Quantum
Technologies, 7(4), Article 2300359. https://doi.org/10.1002/qute.202300359
bibtex: '@article{Boos_Sbresny_Kim_Kremser_Riedl_Bopp_Rauhaus_Scaparra_Jöns_Finley_et
al._2024, title={Coherent Swing‐Up Excitation for Semiconductor Quantum Dots},
volume={7}, DOI={10.1002/qute.202300359},
number={42300359}, journal={Advanced Quantum Technologies}, publisher={Wiley},
author={Boos, Katarina and Sbresny, Friedrich and Kim, Sang Kyu and Kremser, Malte
and Riedl, Hubert and Bopp, Frederik W. and Rauhaus, William and Scaparra, Bianca
and Jöns, Klaus and Finley, Jonathan J. and et al.}, year={2024} }'
chicago: Boos, Katarina, Friedrich Sbresny, Sang Kyu Kim, Malte Kremser, Hubert
Riedl, Frederik W. Bopp, William Rauhaus, et al. “Coherent Swing‐Up Excitation
for Semiconductor Quantum Dots.” Advanced Quantum Technologies 7, no. 4
(2024). https://doi.org/10.1002/qute.202300359.
ieee: 'K. Boos et al., “Coherent Swing‐Up Excitation for Semiconductor Quantum
Dots,” Advanced Quantum Technologies, vol. 7, no. 4, Art. no. 2300359,
2024, doi: 10.1002/qute.202300359.'
mla: Boos, Katarina, et al. “Coherent Swing‐Up Excitation for Semiconductor Quantum
Dots.” Advanced Quantum Technologies, vol. 7, no. 4, 2300359, Wiley, 2024,
doi:10.1002/qute.202300359.
short: K. Boos, F. Sbresny, S.K. Kim, M. Kremser, H. Riedl, F.W. Bopp, W. Rauhaus,
B. Scaparra, K. Jöns, J.J. Finley, K. Müller, L. Hanschke, Advanced Quantum Technologies
7 (2024).
date_created: 2025-12-04T12:08:46Z
date_updated: 2025-12-11T13:00:06Z
department:
- _id: '623'
- _id: '15'
- _id: '429'
- _id: '642'
doi: 10.1002/qute.202300359
intvolume: ' 7'
issue: '4'
language:
- iso: eng
publication: Advanced Quantum Technologies
publication_identifier:
issn:
- 2511-9044
- 2511-9044
publication_status: published
publisher: Wiley
status: public
title: Coherent Swing‐Up Excitation for Semiconductor Quantum Dots
type: journal_article
user_id: '48188'
volume: 7
year: '2024'
...
---
_id: '62858'
abstract:
- lang: eng
text: Phonons in solid-state quantum emitters play a crucial role in their performance
as photon sources in quantum technology. For resonant driving, phonons dampen
the Rabi oscillations resulting in reduced preparation fidelities. The phonon
spectral density, which quantifies the strength of the carrier-phonon interaction,
is non-monotonous as a function of energy. As one of the most prominent consequences,
this leads to the reappearance of Rabi rotations for increasing pulse power, which
was theoretically predicted in Phys. Rev. Lett. 98, 227403 (2007). In this paper
we present the experimental demonstration of the reappearance of Rabi rotations.
author:
- first_name: L.
full_name: Hanschke, L.
last_name: Hanschke
- first_name: T. K.
full_name: Bracht, T. K.
last_name: Bracht
- first_name: E.
full_name: Schöll, E.
last_name: Schöll
- first_name: David
full_name: Bauch, David
id: '44172'
last_name: Bauch
- first_name: Eva
full_name: Berger, Eva
last_name: Berger
- first_name: Patricia
full_name: Kallert, Patricia
last_name: Kallert
- first_name: M.
full_name: Peter, M.
last_name: Peter
- first_name: A. J.
full_name: Garcia, A. J.
last_name: Garcia
- first_name: S. F. Covre da
full_name: Silva, S. F. Covre da
last_name: Silva
- first_name: S.
full_name: Manna, S.
last_name: Manna
- first_name: A.
full_name: Rastelli, A.
last_name: Rastelli
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: D. E.
full_name: Reiter, D. E.
last_name: Reiter
- first_name: Klaus
full_name: Jöns, Klaus
id: '85353'
last_name: Jöns
citation:
ama: Hanschke L, Bracht TK, Schöll E, et al. Experimental measurement of the reappearance
of Rabi rotations in semiconductor quantum dots. arXiv:240919167. Published
online 2024.
apa: Hanschke, L., Bracht, T. K., Schöll, E., Bauch, D., Berger, E., Kallert, P.,
Peter, M., Garcia, A. J., Silva, S. F. C. da, Manna, S., Rastelli, A., Schumacher,
S., Reiter, D. E., & Jöns, K. (2024). Experimental measurement of the reappearance
of Rabi rotations in semiconductor quantum dots. In arXiv:2409.19167.
bibtex: '@article{Hanschke_Bracht_Schöll_Bauch_Berger_Kallert_Peter_Garcia_Silva_Manna_et
al._2024, title={Experimental measurement of the reappearance of Rabi rotations
in semiconductor quantum dots}, journal={arXiv:2409.19167}, author={Hanschke,
L. and Bracht, T. K. and Schöll, E. and Bauch, David and Berger, Eva and Kallert,
Patricia and Peter, M. and Garcia, A. J. and Silva, S. F. Covre da and Manna,
S. and et al.}, year={2024} }'
chicago: Hanschke, L., T. K. Bracht, E. Schöll, David Bauch, Eva Berger, Patricia
Kallert, M. Peter, et al. “Experimental Measurement of the Reappearance of Rabi
Rotations in Semiconductor Quantum Dots.” ArXiv:2409.19167, 2024.
ieee: L. Hanschke et al., “Experimental measurement of the reappearance of
Rabi rotations in semiconductor quantum dots,” arXiv:2409.19167. 2024.
mla: Hanschke, L., et al. “Experimental Measurement of the Reappearance of Rabi
Rotations in Semiconductor Quantum Dots.” ArXiv:2409.19167, 2024.
short: L. Hanschke, T.K. Bracht, E. Schöll, D. Bauch, E. Berger, P. Kallert, M.
Peter, A.J. Garcia, S.F.C. da Silva, S. Manna, A. Rastelli, S. Schumacher, D.E.
Reiter, K. Jöns, ArXiv:2409.19167 (2024).
date_created: 2025-12-04T12:16:58Z
date_updated: 2025-12-11T12:54:41Z
department:
- _id: '623'
- _id: '15'
- _id: '429'
- _id: '642'
external_id:
arxiv:
- '2409.19167'
language:
- iso: eng
publication: arXiv:2409.19167
status: public
title: Experimental measurement of the reappearance of Rabi rotations in semiconductor
quantum dots
type: preprint
user_id: '48188'
year: '2024'
...
---
_id: '62856'
abstract:
- lang: eng
text: On-chip emitters that can generate single and entangled photons are essential
building blocks for developing photonic quantum information processing technologies
in a scalable fashion. Semiconductor quantum dots (QDs) are attractive candidates
that emit high-quality quantum states of light on demand, however at a rate limited
by their spontaneous radiative lifetime. In this study, we utilize the Purcell
effect to demonstrate up to a 38-fold enhancement in the emission rate of InAs
QDs by coupling them to metal-clad GaAs nanopillars. These cavities, featuring
a sub-wavelength mode volume of 4.5x10-4 (λ/n)3 and low quality factor of 62,
enable Purcell-enhanced single-photon emission across a large bandwidth of 15
nm. The broadband nature of the cavity eliminates the need for implementing tuning
mechanisms typically required to achieve QD-cavity resonance, thus relaxing fabrication
constraints. Ultimately, this QD-cavity architecture represents a significant
stride towards developing solid-state quantum emitters generating near-ideal single-photon
states at GHz-level repetition rates.
author:
- first_name: Klaus
full_name: Jöns, Klaus
id: '85353'
last_name: Jöns
citation:
ama: Jöns K. Purcell-enhanced single-photon emission from InAs/GaAs quantum dots
coupled to broadband cylindrical nanocavities. Published online 2024.
apa: Jöns, K. (2024). Purcell-enhanced single-photon emission from InAs/GaAs
quantum dots coupled to broadband cylindrical nanocavities.
bibtex: '@article{Jöns_2024, title={Purcell-enhanced single-photon emission from
InAs/GaAs quantum dots coupled to broadband cylindrical nanocavities}, author={Jöns,
Klaus}, year={2024} }'
chicago: Jöns, Klaus. “Purcell-Enhanced Single-Photon Emission from InAs/GaAs Quantum
Dots Coupled to Broadband Cylindrical Nanocavities,” 2024.
ieee: K. Jöns, “Purcell-enhanced single-photon emission from InAs/GaAs quantum dots
coupled to broadband cylindrical nanocavities.” 2024.
mla: Jöns, Klaus. Purcell-Enhanced Single-Photon Emission from InAs/GaAs Quantum
Dots Coupled to Broadband Cylindrical Nanocavities. 2024.
short: K. Jöns, (2024).
date_created: 2025-12-04T12:13:39Z
date_updated: 2025-12-11T12:58:57Z
department:
- _id: '623'
- _id: '15'
- _id: '429'
- _id: '642'
language:
- iso: eng
status: public
title: Purcell-enhanced single-photon emission from InAs/GaAs quantum dots coupled
to broadband cylindrical nanocavities
type: preprint
user_id: '48188'
year: '2024'
...
---
_id: '63048'
citation:
ama: High-throughput antibody screening with high-quality factor nanophotonics and
bioprinting. Published online 2024. doi:10.48550/ARXIV.2411.18557
apa: High-throughput antibody screening with high-quality factor nanophotonics
and bioprinting. (2024). https://doi.org/10.48550/ARXIV.2411.18557
bibtex: '@article{High-throughput antibody screening with high-quality factor nanophotonics
and bioprinting_2024, DOI={10.48550/ARXIV.2411.18557},
year={2024} }'
chicago: “High-Throughput Antibody Screening with High-Quality Factor Nanophotonics
and Bioprinting,” 2024. https://doi.org/10.48550/ARXIV.2411.18557.
ieee: '“High-throughput antibody screening with high-quality factor nanophotonics
and bioprinting,” 2024, doi: 10.48550/ARXIV.2411.18557.'
mla: High-Throughput Antibody Screening with High-Quality Factor Nanophotonics
and Bioprinting. 2024, doi:10.48550/ARXIV.2411.18557.
short: (2024).
date_created: 2025-12-11T20:41:16Z
date_updated: 2025-12-11T20:46:34Z
department:
- _id: '623'
- _id: '15'
- _id: '230'
doi: 10.48550/ARXIV.2411.18557
status: public
title: High-throughput antibody screening with high-quality factor nanophotonics and
bioprinting
type: journal_article
user_id: '112030'
year: '2024'
...
---
_id: '63047'
author:
- first_name: Nicholas Alexander
full_name: Güsken, Nicholas Alexander
id: '112030'
last_name: Güsken
orcid: 0000-0002-4816-0666
citation:
ama: Güsken NA. Schottky-barrier type infrared photodetector . Published online
2024.
apa: Güsken, N. A. (2024). Schottky-barrier type infrared photodetector .
bibtex: '@article{Güsken_2024, title={Schottky-barrier type infrared photodetector
}, author={Güsken, Nicholas Alexander}, year={2024} }'
chicago: Güsken, Nicholas Alexander. “Schottky-Barrier Type Infrared Photodetector
,” 2024.
ieee: N. A. Güsken, “Schottky-barrier type infrared photodetector .” 2024.
mla: Güsken, Nicholas Alexander. Schottky-Barrier Type Infrared Photodetector
. 2024.
short: N.A. Güsken, (2024).
date_created: 2025-12-11T20:40:43Z
date_updated: 2025-12-11T20:46:41Z
department:
- _id: '623'
- _id: '15'
- _id: '230'
ipc: US12159953B2
ipn: '12159953'
publication_date: 2024/12/3
status: public
title: 'Schottky-barrier type infrared photodetector '
type: patent
user_id: '112030'
year: '2024'
...
---
_id: '63044'
author:
- first_name: C.
full_name: Hoessbacher, C.
last_name: Hoessbacher
- first_name: B.
full_name: Baeuerle, B.
last_name: Baeuerle
- first_name: N.
full_name: Del Medico, N.
last_name: Del Medico
- first_name: E.
full_name: De Leo, E.
last_name: De Leo
- first_name: Nicholas Alexander
full_name: Güsken, Nicholas Alexander
id: '112030'
last_name: Güsken
orcid: 0000-0002-4816-0666
- first_name: W.
full_name: Heni, W.
last_name: Heni
- first_name: A.
full_name: Langenbach, A.
last_name: Langenbach
- first_name: V.
full_name: Tedaldi, V.
last_name: Tedaldi
citation:
ama: 'Hoessbacher C, Baeuerle B, Del Medico N, et al. Plasmonic modulators: bringing
a new light to silicon. IET Conference Proceedings. 2024;2023(34):1606-1608.
doi:10.1049/icp.2023.2642'
apa: 'Hoessbacher, C., Baeuerle, B., Del Medico, N., De Leo, E., Güsken, N. A.,
Heni, W., Langenbach, A., & Tedaldi, V. (2024). Plasmonic modulators: bringing
a new light to silicon. IET Conference Proceedings, 2023(34), 1606–1608.
https://doi.org/10.1049/icp.2023.2642'
bibtex: '@article{Hoessbacher_Baeuerle_Del Medico_De Leo_Güsken_Heni_Langenbach_Tedaldi_2024,
title={Plasmonic modulators: bringing a new light to silicon}, volume={2023},
DOI={10.1049/icp.2023.2642},
number={34}, journal={IET Conference Proceedings}, publisher={Institution of Engineering
and Technology (IET)}, author={Hoessbacher, C. and Baeuerle, B. and Del Medico,
N. and De Leo, E. and Güsken, Nicholas Alexander and Heni, W. and Langenbach,
A. and Tedaldi, V.}, year={2024}, pages={1606–1608} }'
chicago: 'Hoessbacher, C., B. Baeuerle, N. Del Medico, E. De Leo, Nicholas Alexander
Güsken, W. Heni, A. Langenbach, and V. Tedaldi. “Plasmonic Modulators: Bringing
a New Light to Silicon.” IET Conference Proceedings 2023, no. 34 (2024):
1606–8. https://doi.org/10.1049/icp.2023.2642.'
ieee: 'C. Hoessbacher et al., “Plasmonic modulators: bringing a new light
to silicon,” IET Conference Proceedings, vol. 2023, no. 34, pp. 1606–1608,
2024, doi: 10.1049/icp.2023.2642.'
mla: 'Hoessbacher, C., et al. “Plasmonic Modulators: Bringing a New Light to Silicon.”
IET Conference Proceedings, vol. 2023, no. 34, Institution of Engineering
and Technology (IET), 2024, pp. 1606–08, doi:10.1049/icp.2023.2642.'
short: C. Hoessbacher, B. Baeuerle, N. Del Medico, E. De Leo, N.A. Güsken, W. Heni,
A. Langenbach, V. Tedaldi, IET Conference Proceedings 2023 (2024) 1606–1608.
date_created: 2025-12-11T20:37:41Z
date_updated: 2025-12-15T11:20:43Z
department:
- _id: '623'
- _id: '15'
- _id: '230'
doi: 10.1049/icp.2023.2642
intvolume: ' 2023'
issue: '34'
language:
- iso: eng
page: 1606-1608
publication: IET Conference Proceedings
publication_identifier:
issn:
- 2732-4494
publication_status: published
publisher: Institution of Engineering and Technology (IET)
status: public
title: 'Plasmonic modulators: bringing a new light to silicon'
type: journal_article
user_id: '112030'
volume: 2023
year: '2024'
...