---
_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: '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: '47997'
abstract:
- lang: eng
text: The crystal family of potassium titanyl phosphate (KTiOPO4) is a promising
material group for applications in quantum and nonlinear optics. The fabrication
of low-loss optical waveguides, as well as high-grade periodically poled ferroelectric
domain structures, requires a profound understanding of the material properties
and crystal structure. In this regard, Raman spectroscopy offers the possibility
to study and visualize domain structures, strain, defects, and the local stoichiometry,
which are all factors impacting device performance. However, the accurate interpretation
of Raman spectra and their changes with respect to extrinsic and intrinsic defects
requires a thorough assignment of the Raman modes to their respective crystal
features, which to date is only partly conducted based on phenomenological modelling.
To address this issue, we calculated the phonon spectra of potassium titanyl phosphate
and the related compounds rubidium titanyl phosphate (RbTiOPO4) and potassium
titanyl arsenate (KTiOAsO4) based on density functional theory and compared them
with experimental data. Overall, this allows us to assign various spectral features
to eigenmodes of lattice substructures with improved detail compared to previous
assignments. Nevertheless, the analysis also shows that not all features of the
spectra can unambigiously be explained yet. A possible explanation might be that
defects or long range fields not included in the modeling play a crucial rule
for the resulting Raman spectrum. In conclusion, this work provides an improved
foundation into the vibrational properties in the KTiOPO4 material family.
article_number: '1423'
author:
- first_name: Sergej
full_name: Neufeld, Sergej
last_name: Neufeld
- first_name: Uwe
full_name: Gerstmann, Uwe
id: '171'
last_name: Gerstmann
orcid: 0000-0002-4476-223X
- 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: Gerhard
full_name: Berth, Gerhard
id: '53'
last_name: Berth
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Lukas M.
full_name: Eng, Lukas M.
last_name: Eng
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
id: '468'
last_name: Schmidt
orcid: 0000-0002-2717-5076
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
citation:
ama: Neufeld S, Gerstmann U, Padberg L, et al. Vibrational Properties of the Potassium
Titanyl Phosphate Crystal Family. Crystals. 2023;13(10). doi:10.3390/cryst13101423
apa: Neufeld, S., Gerstmann, U., Padberg, L., Eigner, C., Berth, G., Silberhorn,
C., Eng, L. M., Schmidt, W. G., & Rüsing, M. (2023). Vibrational Properties
of the Potassium Titanyl Phosphate Crystal Family. Crystals, 13(10),
Article 1423. https://doi.org/10.3390/cryst13101423
bibtex: '@article{Neufeld_Gerstmann_Padberg_Eigner_Berth_Silberhorn_Eng_Schmidt_Rüsing_2023,
title={Vibrational Properties of the Potassium Titanyl Phosphate Crystal Family},
volume={13}, DOI={10.3390/cryst13101423},
number={101423}, journal={Crystals}, publisher={MDPI AG}, author={Neufeld, Sergej
and Gerstmann, Uwe and Padberg, Laura and Eigner, Christof and Berth, Gerhard
and Silberhorn, Christine and Eng, Lukas M. and Schmidt, Wolf Gero and Rüsing,
Michael}, year={2023} }'
chicago: Neufeld, Sergej, Uwe Gerstmann, Laura Padberg, Christof Eigner, Gerhard
Berth, Christine Silberhorn, Lukas M. Eng, Wolf Gero Schmidt, and Michael Rüsing.
“Vibrational Properties of the Potassium Titanyl Phosphate Crystal Family.” Crystals
13, no. 10 (2023). https://doi.org/10.3390/cryst13101423.
ieee: 'S. Neufeld et al., “Vibrational Properties of the Potassium Titanyl
Phosphate Crystal Family,” Crystals, vol. 13, no. 10, Art. no. 1423, 2023,
doi: 10.3390/cryst13101423.'
mla: Neufeld, Sergej, et al. “Vibrational Properties of the Potassium Titanyl Phosphate
Crystal Family.” Crystals, vol. 13, no. 10, 1423, MDPI AG, 2023, doi:10.3390/cryst13101423.
short: S. Neufeld, U. Gerstmann, L. Padberg, C. Eigner, G. Berth, C. Silberhorn,
L.M. Eng, W.G. Schmidt, M. Rüsing, Crystals 13 (2023).
date_created: 2023-10-11T09:10:53Z
date_updated: 2023-10-11T09:15:58Z
department:
- _id: '169'
doi: 10.3390/cryst13101423
funded_apc: '1'
intvolume: ' 13'
issue: '10'
keyword:
- Inorganic Chemistry
- Condensed Matter Physics
- General Materials Science
- General Chemical Engineering
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3390/cryst13101423
oa: '1'
project:
- _id: '168'
grant_number: '231447078'
name: 'TRR 142 - B07: TRR 142 - Polaronen-Einfluss auf die optischen Eigenschaften
von Lithiumniobat (B07*)'
- _id: '55'
name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '266'
grant_number: PROFILNRW-2020-067
name: 'PhoQC: PhoQC: Photonisches Quantencomputing'
publication: Crystals
publication_identifier:
issn:
- 2073-4352
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Vibrational Properties of the Potassium Titanyl Phosphate Crystal Family
type: journal_article
user_id: '22501'
volume: 13
year: '2023'
...
---
_id: '48349'
abstract:
- lang: eng
text: We report a titanium indiffused waveguide resonator featuring an integrated
electro-optic modulator for cavity length stabilisation that produces close to
5 dB of squeezed light at 1550 nm (2.4 dB directly measured). The resonator is
locked on resonance for tens of minutes with 70 mW of SH light incident on the
cavity, demonstrating that photorefraction can be mitigated. Squeezed light production
concurrent with cavity length stabilisation utilising the integrated EOM is demonstrated.
The device demonstrates the suitability of this platform for squeezed light generation
in network applications, where stabilisation to the reference field is typically
necessary.
article_number: '34903'
author:
- first_name: M.
full_name: Stefszky, M.
last_name: Stefszky
- first_name: F.
full_name: vom Bruch, F.
last_name: vom Bruch
- first_name: M.
full_name: Santandrea, M.
last_name: Santandrea
- first_name: R.
full_name: Ricken, R.
last_name: Ricken
- first_name: V.
full_name: Quiring, V.
last_name: Quiring
- first_name: C.
full_name: Eigner, C.
last_name: Eigner
- first_name: H
full_name: Herrmann, H
last_name: Herrmann
- first_name: C
full_name: Silberhorn, C
last_name: Silberhorn
citation:
ama: Stefszky M, vom Bruch F, Santandrea M, et al. Lithium niobate waveguide squeezer
with integrated cavity length stabilisation for network applications. Optics
Express. 2023;31(21). doi:10.1364/oe.498423
apa: Stefszky, M., vom Bruch, F., Santandrea, M., Ricken, R., Quiring, V., Eigner,
C., Herrmann, H., & Silberhorn, C. (2023). Lithium niobate waveguide squeezer
with integrated cavity length stabilisation for network applications. Optics
Express, 31(21), Article 34903. https://doi.org/10.1364/oe.498423
bibtex: '@article{Stefszky_vom Bruch_Santandrea_Ricken_Quiring_Eigner_Herrmann_Silberhorn_2023,
title={Lithium niobate waveguide squeezer with integrated cavity length stabilisation
for network applications}, volume={31}, DOI={10.1364/oe.498423},
number={2134903}, journal={Optics Express}, publisher={Optica Publishing Group},
author={Stefszky, M. and vom Bruch, F. and Santandrea, M. and Ricken, R. and Quiring,
V. and Eigner, C. and Herrmann, H and Silberhorn, C}, year={2023} }'
chicago: Stefszky, M., F. vom Bruch, M. Santandrea, R. Ricken, V. Quiring, C. Eigner,
H Herrmann, and C Silberhorn. “Lithium Niobate Waveguide Squeezer with Integrated
Cavity Length Stabilisation for Network Applications.” Optics Express 31,
no. 21 (2023). https://doi.org/10.1364/oe.498423.
ieee: 'M. Stefszky et al., “Lithium niobate waveguide squeezer with integrated
cavity length stabilisation for network applications,” Optics Express,
vol. 31, no. 21, Art. no. 34903, 2023, doi: 10.1364/oe.498423.'
mla: Stefszky, M., et al. “Lithium Niobate Waveguide Squeezer with Integrated Cavity
Length Stabilisation for Network Applications.” Optics Express, vol. 31,
no. 21, 34903, Optica Publishing Group, 2023, doi:10.1364/oe.498423.
short: M. Stefszky, F. vom Bruch, M. Santandrea, R. Ricken, V. Quiring, C. Eigner,
H. Herrmann, C. Silberhorn, Optics Express 31 (2023).
date_created: 2023-10-19T14:22:59Z
date_updated: 2023-11-02T09:26:42Z
department:
- _id: '288'
- _id: '623'
doi: 10.1364/oe.498423
intvolume: ' 31'
issue: '21'
keyword:
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: Optica Publishing Group
status: public
title: Lithium niobate waveguide squeezer with integrated cavity length stabilisation
for network applications
type: journal_article
user_id: '42777'
volume: 31
year: '2023'
...
---
_id: '48399'
abstract:
- lang: eng
text: Quantum photonic processing via electro-optic components typically
requires electronic links across different operation environments, especially
when interfacing cryogenic components such as superconducting single photon detectors
with room-temperature control and readout electronics. However, readout and driving
electronics can introduce detrimental parasitic effects. Here we show an all-optical
control and readout of a superconducting nanowire single photon detector (SNSPD),
completely electrically decoupled from room temperature electronics. We provide
the operation power for the superconducting detector via a cryogenic photodiode,
and readout single photon detection signals via a cryogenic electro-optic modulator
in the same cryostat. This method opens the possibility for control and readout
of superconducting circuits, and feedforward for photonic quantum computing.
article_number: '32717'
author:
- first_name: Frederik
full_name: Thiele, Frederik
id: '50819'
last_name: Thiele
orcid: 0000-0003-0663-5587
- first_name: Thomas
full_name: Hummel, Thomas
id: '83846'
last_name: Hummel
- first_name: Adam N.
full_name: McCaughan, Adam N.
last_name: McCaughan
- first_name: Julian
full_name: Brockmeier, Julian
id: '44807'
last_name: Brockmeier
- first_name: Maximilian
full_name: Protte, Maximilian
id: '46170'
last_name: Protte
- first_name: Victor
full_name: Quiring, Victor
last_name: Quiring
- first_name: Sebastian
full_name: Lengeling, Sebastian
id: '44373'
last_name: Lengeling
- 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: Tim
full_name: Bartley, Tim
id: '49683'
last_name: Bartley
citation:
ama: Thiele F, Hummel T, McCaughan AN, et al. All optical operation of a superconducting
photonic interface. Optics Express. 2023;31(20). doi:10.1364/oe.492035
apa: Thiele, F., Hummel, T., McCaughan, A. N., Brockmeier, J., Protte, M., Quiring,
V., Lengeling, S., Eigner, C., Silberhorn, C., & Bartley, T. (2023). All optical
operation of a superconducting photonic interface. Optics Express, 31(20),
Article 32717. https://doi.org/10.1364/oe.492035
bibtex: '@article{Thiele_Hummel_McCaughan_Brockmeier_Protte_Quiring_Lengeling_Eigner_Silberhorn_Bartley_2023,
title={All optical operation of a superconducting photonic interface}, volume={31},
DOI={10.1364/oe.492035}, number={2032717},
journal={Optics Express}, publisher={Optica Publishing Group}, author={Thiele,
Frederik and Hummel, Thomas and McCaughan, Adam N. and Brockmeier, Julian and
Protte, Maximilian and Quiring, Victor and Lengeling, Sebastian and Eigner, Christof
and Silberhorn, Christine and Bartley, Tim}, year={2023} }'
chicago: Thiele, Frederik, Thomas Hummel, Adam N. McCaughan, Julian Brockmeier,
Maximilian Protte, Victor Quiring, Sebastian Lengeling, Christof Eigner, Christine
Silberhorn, and Tim Bartley. “All Optical Operation of a Superconducting Photonic
Interface.” Optics Express 31, no. 20 (2023). https://doi.org/10.1364/oe.492035.
ieee: 'F. Thiele et al., “All optical operation of a superconducting photonic
interface,” Optics Express, vol. 31, no. 20, Art. no. 32717, 2023, doi:
10.1364/oe.492035.'
mla: Thiele, Frederik, et al. “All Optical Operation of a Superconducting Photonic
Interface.” Optics Express, vol. 31, no. 20, 32717, Optica Publishing Group,
2023, doi:10.1364/oe.492035.
short: F. Thiele, T. Hummel, A.N. McCaughan, J. Brockmeier, M. Protte, V. Quiring,
S. Lengeling, C. Eigner, C. Silberhorn, T. Bartley, Optics Express 31 (2023).
date_created: 2023-10-24T06:43:16Z
date_updated: 2023-11-27T08:43:33Z
doi: 10.1364/oe.492035
intvolume: ' 31'
issue: '20'
keyword:
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: Optica Publishing Group
status: public
title: All optical operation of a superconducting photonic interface
type: journal_article
user_id: '50819'
volume: 31
year: '2023'
...
---
_id: '54852'
abstract:
- lang: eng
text: The crystal family of potassium titanyl phosphate (KTiOPO4) is a promising
material group for applications in quantum and nonlinear optics. The fabrication
of low-loss optical waveguides, as well as high-grade periodically poled ferroelectric
domain structures, requires a profound understanding of the material properties
and crystal structure. In this regard, Raman spectroscopy offers the possibility
to study and visualize domain structures, strain, defects, and the local stoichiometry,
which are all factors impacting device performance. However, the accurate interpretation
of Raman spectra and their changes with respect to extrinsic and intrinsic defects
requires a thorough assignment of the Raman modes to their respective crystal
features, which to date is only partly conducted based on phenomenological modelling.
To address this issue, we calculated the phonon spectra of potassium titanyl phosphate
and the related compounds rubidium titanyl phosphate (RbTiOPO4) and potassium
titanyl arsenate (KTiOAsO4) based on density functional theory and compared them
with experimental data. Overall, this allows us to assign various spectral features
to eigenmodes of lattice substructures with improved detail compared to previous
assignments. Nevertheless, the analysis also shows that not all features of the
spectra can unambigiously be explained yet. A possible explanation might be that
defects or long range fields not included in the modeling play a crucial rule
for the resulting Raman spectrum. In conclusion, this work provides an improved
foundation into the vibrational properties in the KTiOPO4 material family.
article_number: '1423'
author:
- first_name: Sergej
full_name: Neufeld, Sergej
last_name: Neufeld
- first_name: Uwe
full_name: Gerstmann, Uwe
id: '171'
last_name: Gerstmann
orcid: 0000-0002-4476-223X
- 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: Gerhard
full_name: Berth, Gerhard
id: '53'
last_name: Berth
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Lukas M.
full_name: Eng, Lukas M.
last_name: Eng
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
id: '468'
last_name: Schmidt
orcid: 0000-0002-2717-5076
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
citation:
ama: Neufeld S, Gerstmann U, Padberg L, et al. Vibrational Properties of the Potassium
Titanyl Phosphate Crystal Family. Crystals. 2023;13(10). doi:10.3390/cryst13101423
apa: Neufeld, S., Gerstmann, U., Padberg, L., Eigner, C., Berth, G., Silberhorn,
C., Eng, L. M., Schmidt, W. G., & Rüsing, M. (2023). Vibrational Properties
of the Potassium Titanyl Phosphate Crystal Family. Crystals, 13(10),
Article 1423. https://doi.org/10.3390/cryst13101423
bibtex: '@article{Neufeld_Gerstmann_Padberg_Eigner_Berth_Silberhorn_Eng_Schmidt_Rüsing_2023,
title={Vibrational Properties of the Potassium Titanyl Phosphate Crystal Family},
volume={13}, DOI={10.3390/cryst13101423},
number={101423}, journal={Crystals}, publisher={MDPI AG}, author={Neufeld, Sergej
and Gerstmann, Uwe and Padberg, Laura and Eigner, Christof and Berth, Gerhard
and Silberhorn, Christine and Eng, Lukas M. and Schmidt, Wolf Gero and Rüsing,
Michael}, year={2023} }'
chicago: Neufeld, Sergej, Uwe Gerstmann, Laura Padberg, Christof Eigner, Gerhard
Berth, Christine Silberhorn, Lukas M. Eng, Wolf Gero Schmidt, and Michael Rüsing.
“Vibrational Properties of the Potassium Titanyl Phosphate Crystal Family.” Crystals
13, no. 10 (2023). https://doi.org/10.3390/cryst13101423.
ieee: 'S. Neufeld et al., “Vibrational Properties of the Potassium Titanyl
Phosphate Crystal Family,” Crystals, vol. 13, no. 10, Art. no. 1423, 2023,
doi: 10.3390/cryst13101423.'
mla: Neufeld, Sergej, et al. “Vibrational Properties of the Potassium Titanyl Phosphate
Crystal Family.” Crystals, vol. 13, no. 10, 1423, MDPI AG, 2023, doi:10.3390/cryst13101423.
short: S. Neufeld, U. Gerstmann, L. Padberg, C. Eigner, G. Berth, C. Silberhorn,
L.M. Eng, W.G. Schmidt, M. Rüsing, Crystals 13 (2023).
date_created: 2024-06-24T06:15:00Z
date_updated: 2024-06-24T06:30:23Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '288'
- _id: '230'
- _id: '429'
doi: 10.3390/cryst13101423
intvolume: ' 13'
issue: '10'
language:
- iso: eng
project:
- _id: '53'
grant_number: '231447078'
name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
Konzepten zu funktionellen Strukturen'
publication: Crystals
publication_identifier:
issn:
- 2073-4352
publication_status: published
publisher: MDPI AG
status: public
title: Vibrational Properties of the Potassium Titanyl Phosphate Crystal Family
type: journal_article
user_id: '16199'
volume: 13
year: '2023'
...
---
_id: '42158'
article_number: '014072'
author:
- first_name: Carolin
full_name: Lüders, Carolin
last_name: Lüders
- first_name: Jano
full_name: Gil-Lopez, Jano
last_name: Gil-Lopez
- first_name: Markus
full_name: Allgaier, Markus
last_name: Allgaier
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- first_name: Marc
full_name: Aßmann, Marc
last_name: Aßmann
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Manfred
full_name: Bayer, Manfred
last_name: Bayer
citation:
ama: Lüders C, Gil-Lopez J, Allgaier M, et al. Tailored Frequency Conversion Makes
Infrared Light Visible for Streak Cameras. Physical Review Applied. 2023;19(1).
doi:10.1103/physrevapplied.19.014072
apa: Lüders, C., Gil-Lopez, J., Allgaier, M., Brecht, B., Aßmann, M., Silberhorn,
C., & Bayer, M. (2023). Tailored Frequency Conversion Makes Infrared Light
Visible for Streak Cameras. Physical Review Applied, 19(1), Article
014072. https://doi.org/10.1103/physrevapplied.19.014072
bibtex: '@article{Lüders_Gil-Lopez_Allgaier_Brecht_Aßmann_Silberhorn_Bayer_2023,
title={Tailored Frequency Conversion Makes Infrared Light Visible for Streak Cameras},
volume={19}, DOI={10.1103/physrevapplied.19.014072},
number={1014072}, journal={Physical Review Applied}, publisher={American Physical
Society (APS)}, author={Lüders, Carolin and Gil-Lopez, Jano and Allgaier, Markus
and Brecht, Benjamin and Aßmann, Marc and Silberhorn, Christine and Bayer, Manfred},
year={2023} }'
chicago: Lüders, Carolin, Jano Gil-Lopez, Markus Allgaier, Benjamin Brecht, Marc
Aßmann, Christine Silberhorn, and Manfred Bayer. “Tailored Frequency Conversion
Makes Infrared Light Visible for Streak Cameras.” Physical Review Applied
19, no. 1 (2023). https://doi.org/10.1103/physrevapplied.19.014072.
ieee: 'C. Lüders et al., “Tailored Frequency Conversion Makes Infrared Light
Visible for Streak Cameras,” Physical Review Applied, vol. 19, no. 1, Art.
no. 014072, 2023, doi: 10.1103/physrevapplied.19.014072.'
mla: Lüders, Carolin, et al. “Tailored Frequency Conversion Makes Infrared Light
Visible for Streak Cameras.” Physical Review Applied, vol. 19, no. 1, 014072,
American Physical Society (APS), 2023, doi:10.1103/physrevapplied.19.014072.
short: C. Lüders, J. Gil-Lopez, M. Allgaier, B. Brecht, M. Aßmann, C. Silberhorn,
M. Bayer, Physical Review Applied 19 (2023).
date_created: 2023-02-15T10:50:17Z
date_updated: 2023-02-15T10:51:33Z
department:
- _id: '15'
- _id: '623'
doi: 10.1103/physrevapplied.19.014072
intvolume: ' 19'
issue: '1'
keyword:
- General Physics and Astronomy
language:
- iso: eng
project:
- _id: '71'
name: 'TRR 142 - C01: TRR 142 - Subproject C01'
publication: Physical Review Applied
publication_identifier:
issn:
- 2331-7019
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Tailored Frequency Conversion Makes Infrared Light Visible for Streak Cameras
type: journal_article
user_id: '27150'
volume: 19
year: '2023'
...
---
_id: '45485'
author:
- first_name: Stephan
full_name: Kruse, Stephan
id: '38254'
last_name: Kruse
- first_name: Laura
full_name: Serino, Laura
id: '88242'
last_name: Serino
- first_name: Patrick Fabian
full_name: Folge, Patrick Fabian
id: '88605'
last_name: Folge
- first_name: Dana
full_name: Echeverria Oviedo, Dana
last_name: Echeverria Oviedo
- first_name: Abhinandan
full_name: Bhattacharjee, Abhinandan
last_name: Bhattacharjee
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: '0000-0002-5950-6618 '
- 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: Kruse S, Serino L, Folge PF, et al. A Pulsed Lidar System With Ultimate Quantum
Range Accuracy. IEEE Photonics Technology Letters. 2023;35(14):769-772.
doi:10.1109/lpt.2023.3277515
apa: Kruse, S., Serino, L., Folge, P. F., Echeverria Oviedo, D., Bhattacharjee,
A., Stefszky, M., Scheytt, J. C., Brecht, B., & Silberhorn, C. (2023). A Pulsed
Lidar System With Ultimate Quantum Range Accuracy. IEEE Photonics Technology
Letters, 35(14), 769–772. https://doi.org/10.1109/lpt.2023.3277515
bibtex: '@article{Kruse_Serino_Folge_Echeverria Oviedo_Bhattacharjee_Stefszky_Scheytt_Brecht_Silberhorn_2023,
title={A Pulsed Lidar System With Ultimate Quantum Range Accuracy}, volume={35},
DOI={10.1109/lpt.2023.3277515},
number={14}, journal={IEEE Photonics Technology Letters}, publisher={Institute
of Electrical and Electronics Engineers (IEEE)}, author={Kruse, Stephan and Serino,
Laura and Folge, Patrick Fabian and Echeverria Oviedo, Dana and Bhattacharjee,
Abhinandan and Stefszky, Michael and Scheytt, J. Christoph and Brecht, Benjamin
and Silberhorn, Christine}, year={2023}, pages={769–772} }'
chicago: 'Kruse, Stephan, Laura Serino, Patrick Fabian Folge, Dana Echeverria Oviedo,
Abhinandan Bhattacharjee, Michael Stefszky, J. Christoph Scheytt, Benjamin Brecht,
and Christine Silberhorn. “A Pulsed Lidar System With Ultimate Quantum Range Accuracy.”
IEEE Photonics Technology Letters 35, no. 14 (2023): 769–72. https://doi.org/10.1109/lpt.2023.3277515.'
ieee: 'S. Kruse et al., “A Pulsed Lidar System With Ultimate Quantum Range
Accuracy,” IEEE Photonics Technology Letters, vol. 35, no. 14, pp. 769–772,
2023, doi: 10.1109/lpt.2023.3277515.'
mla: Kruse, Stephan, et al. “A Pulsed Lidar System With Ultimate Quantum Range Accuracy.”
IEEE Photonics Technology Letters, vol. 35, no. 14, Institute of Electrical
and Electronics Engineers (IEEE), 2023, pp. 769–72, doi:10.1109/lpt.2023.3277515.
short: S. Kruse, L. Serino, P.F. Folge, D. Echeverria Oviedo, A. Bhattacharjee,
M. Stefszky, J.C. Scheytt, B. Brecht, C. Silberhorn, IEEE Photonics Technology
Letters 35 (2023) 769–772.
date_created: 2023-06-06T10:09:05Z
date_updated: 2023-06-06T10:13:05Z
department:
- _id: '15'
- _id: '58'
- _id: '623'
- _id: '230'
- _id: '288'
doi: 10.1109/lpt.2023.3277515
intvolume: ' 35'
issue: '14'
keyword:
- Electrical and Electronic Engineering
- Atomic and Molecular Physics
- and Optics
- Electronic
- Optical and Magnetic Materials
language:
- iso: eng
page: 769-772
publication: IEEE Photonics Technology Letters
publication_identifier:
issn:
- 1041-1135
- 1941-0174
publication_status: published
publisher: Institute of Electrical and Electronics Engineers (IEEE)
status: public
title: A Pulsed Lidar System With Ultimate Quantum Range Accuracy
type: journal_article
user_id: '27150'
volume: 35
year: '2023'
...
---
_id: '45850'
abstract:
- lang: eng
text: Interference between single photons is key for many quantum optics experiments
and applications in quantum technologies, such as quantum communication or computation.
It is advantageous to operate the systems at telecommunication wavelengths and
to integrate the setups for these applications in order to improve stability,
compactness and scalability. A new promising material platform for integrated
quantum optics is lithium niobate on insulator (LNOI). Here, we realise Hong-Ou-Mandel
(HOM) interference between telecom photons from an engineered parametric down-conversion
source in an LNOI directional coupler. The coupler has been designed and fabricated
in house and provides close to perfect balanced beam splitting. We obtain a raw
HOM visibility of (93.5 ± 0.7) %, limited mainly by the source performance and
in good agreement with off-chip measurements. This lays the foundation for more
sophisticated quantum experiments in LNOI.
article_number: '23140'
author:
- first_name: Silia
full_name: Babel, Silia
id: '63231'
last_name: Babel
orcid: https://orcid.org/0000-0002-1568-2580
- first_name: Laura
full_name: Bollmers, Laura
id: '61375'
last_name: Bollmers
- first_name: Marcello
full_name: Massaro, Marcello
id: '59545'
last_name: Massaro
orcid: 0000-0002-2539-7652
- first_name: Kai Hong
full_name: Luo, Kai Hong
id: '36389'
last_name: Luo
orcid: 0000-0003-1008-4976
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Federico
full_name: Pegoraro, Federico
id: '88928'
last_name: Pegoraro
- first_name: Philip
full_name: Held, Philip
id: '68236'
last_name: Held
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Benjamin
full_name: Brecht, Benjamin
id: '27150'
last_name: Brecht
orcid: '0000-0003-4140-0556 '
- first_name: Laura
full_name: Padberg, Laura
id: '40300'
last_name: Padberg
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Babel S, Bollmers L, Massaro M, et al. Demonstration of Hong-Ou-Mandel interference
in an LNOI directional coupler. Optics Express. 2023;31(14). doi:10.1364/oe.484126
apa: Babel, S., Bollmers, L., Massaro, M., Luo, K. H., Stefszky, M., Pegoraro, F.,
Held, P., Herrmann, H., Eigner, C., Brecht, B., Padberg, L., & Silberhorn,
C. (2023). Demonstration of Hong-Ou-Mandel interference in an LNOI directional
coupler. Optics Express, 31(14), Article 23140. https://doi.org/10.1364/oe.484126
bibtex: '@article{Babel_Bollmers_Massaro_Luo_Stefszky_Pegoraro_Held_Herrmann_Eigner_Brecht_et
al._2023, title={Demonstration of Hong-Ou-Mandel interference in an LNOI directional
coupler}, volume={31}, DOI={10.1364/oe.484126},
number={1423140}, journal={Optics Express}, publisher={Optica Publishing Group},
author={Babel, Silia and Bollmers, Laura and Massaro, Marcello and Luo, Kai Hong
and Stefszky, Michael and Pegoraro, Federico and Held, Philip and Herrmann, Harald
and Eigner, Christof and Brecht, Benjamin and et al.}, year={2023} }'
chicago: Babel, Silia, Laura Bollmers, Marcello Massaro, Kai Hong Luo, Michael Stefszky,
Federico Pegoraro, Philip Held, et al. “Demonstration of Hong-Ou-Mandel Interference
in an LNOI Directional Coupler.” Optics Express 31, no. 14 (2023). https://doi.org/10.1364/oe.484126.
ieee: 'S. Babel et al., “Demonstration of Hong-Ou-Mandel interference in
an LNOI directional coupler,” Optics Express, vol. 31, no. 14, Art. no.
23140, 2023, doi: 10.1364/oe.484126.'
mla: Babel, Silia, et al. “Demonstration of Hong-Ou-Mandel Interference in an LNOI
Directional Coupler.” Optics Express, vol. 31, no. 14, 23140, Optica Publishing
Group, 2023, doi:10.1364/oe.484126.
short: S. Babel, L. Bollmers, M. Massaro, K.H. Luo, M. Stefszky, F. Pegoraro, P.
Held, H. Herrmann, C. Eigner, B. Brecht, L. Padberg, C. Silberhorn, Optics Express
31 (2023).
date_created: 2023-07-03T14:08:36Z
date_updated: 2023-07-05T07:58:31Z
department:
- _id: '15'
- _id: '230'
- _id: '623'
- _id: '288'
doi: 10.1364/oe.484126
intvolume: ' 31'
issue: '14'
keyword:
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: Optica Publishing Group
status: public
title: Demonstration of Hong-Ou-Mandel interference in an LNOI directional coupler
type: journal_article
user_id: '63231'
volume: 31
year: '2023'
...
---
_id: '46138'
abstract:
- lang: eng
text: This work reports a fully guided setup for single-mode squeezing on
integrated titanium-indiffused periodically poled nonlinear resonators. A continuous-wave
laser beam is delivered and the squeezed field is collected by single-mode fibers;
up to −3.17(9) dB of useful squeezing is available in fibers. To showcase the
usefulness of such a fiber-coupled device, we applied the generated squeezed light
in a fiber-based phase sensing experiment, showing a quantum enhancement in the
signal-to-noise ratio of 0.35 dB. Moreover, our investigation of the effect of
photorefraction on the cavity resonance condition suggests that it causes system
instabilities at high powers.
article_number: '2999'
article_type: original
author:
- first_name: Renato
full_name: Domeneguetti, Renato
last_name: Domeneguetti
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Ulrik L.
full_name: Andersen, Ulrik L.
last_name: Andersen
- first_name: Jonas S.
full_name: Neergaard-Nielsen, Jonas S.
last_name: Neergaard-Nielsen
- first_name: Tobias
full_name: Gehring, Tobias
last_name: Gehring
citation:
ama: Domeneguetti R, Stefszky M, Herrmann H, et al. Fully guided and phase locked
Ti:PPLN waveguide squeezing for applications in quantum sensing. Optics Letters.
2023;48(11). doi:10.1364/ol.486654
apa: Domeneguetti, R., Stefszky, M., Herrmann, H., Silberhorn, C., Andersen, U.
L., Neergaard-Nielsen, J. S., & Gehring, T. (2023). Fully guided and phase
locked Ti:PPLN waveguide squeezing for applications in quantum sensing. Optics
Letters, 48(11), Article 2999. https://doi.org/10.1364/ol.486654
bibtex: '@article{Domeneguetti_Stefszky_Herrmann_Silberhorn_Andersen_Neergaard-Nielsen_Gehring_2023,
title={Fully guided and phase locked Ti:PPLN waveguide squeezing for applications
in quantum sensing}, volume={48}, DOI={10.1364/ol.486654},
number={112999}, journal={Optics Letters}, publisher={Optica Publishing Group},
author={Domeneguetti, Renato and Stefszky, Michael and Herrmann, Harald and Silberhorn,
Christine and Andersen, Ulrik L. and Neergaard-Nielsen, Jonas S. and Gehring,
Tobias}, year={2023} }'
chicago: Domeneguetti, Renato, Michael Stefszky, Harald Herrmann, Christine Silberhorn,
Ulrik L. Andersen, Jonas S. Neergaard-Nielsen, and Tobias Gehring. “Fully Guided
and Phase Locked Ti:PPLN Waveguide Squeezing for Applications in Quantum Sensing.”
Optics Letters 48, no. 11 (2023). https://doi.org/10.1364/ol.486654.
ieee: 'R. Domeneguetti et al., “Fully guided and phase locked Ti:PPLN waveguide
squeezing for applications in quantum sensing,” Optics Letters, vol. 48,
no. 11, Art. no. 2999, 2023, doi: 10.1364/ol.486654.'
mla: Domeneguetti, Renato, et al. “Fully Guided and Phase Locked Ti:PPLN Waveguide
Squeezing for Applications in Quantum Sensing.” Optics Letters, vol. 48,
no. 11, 2999, Optica Publishing Group, 2023, doi:10.1364/ol.486654.
short: R. Domeneguetti, M. Stefszky, H. Herrmann, C. Silberhorn, U.L. Andersen,
J.S. Neergaard-Nielsen, T. Gehring, Optics Letters 48 (2023).
date_created: 2023-07-25T10:35:24Z
date_updated: 2023-07-25T10:58:05Z
department:
- _id: '230'
- _id: '623'
- _id: '288'
doi: 10.1364/ol.486654
intvolume: ' 48'
issue: '11'
keyword:
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
project:
- _id: '218'
name: 'UNIQORN: UNIQORN - Affordable Quantum Communication for Everyone - EU Quantum
Flagship Project'
publication: Optics Letters
publication_identifier:
issn:
- 0146-9592
- 1539-4794
publication_status: published
publisher: Optica Publishing Group
quality_controlled: '1'
status: public
title: Fully guided and phase locked Ti:PPLN waveguide squeezing for applications
in quantum sensing
type: journal_article
user_id: '216'
volume: 48
year: '2023'
...
---
_id: '46644'
abstract:
- lang: eng
text: A reliable, but cost-effective generation of single-photon states is key for
practical quantum communication systems. For real-world deployment, waveguide
sources offer optimum compatibility with fiber networks and can be embedded in
hybrid integrated modules. Here, we present what we believe to be the first chip-size
fully integrated fiber-coupled heralded single photon source (HSPS) module based
on a hybrid integration of a nonlinear lithium niobate waveguide into a polymer
board. Photon pairs at 810 nm (signal) and 1550 nm (idler) are generated via parametric
down-conversion pumped at 532 nm in the LiNbO3 waveguide. The pairs are split
in the polymer board and routed to separate output ports. The module has a size
of (2 × 1) cm^2 and is fully fiber-coupled with one pump input fiber and two output
fibers. We measure a heralded second-order correlation function of g_h(2)=0.05
with a heralding efficiency of η_h=3.5% at low pump powers
article_number: '22685'
article_type: original
author:
- first_name: Christian
full_name: Kießler, Christian
id: '44252'
last_name: Kießler
- first_name: Hauke
full_name: Conradi, Hauke
last_name: Conradi
- first_name: Moritz
full_name: Kleinert, Moritz
last_name: Kleinert
- first_name: Viktor
full_name: Quiring, Viktor
last_name: Quiring
- first_name: Harald
full_name: Herrmann, Harald
id: '216'
last_name: Herrmann
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: Kießler C, Conradi H, Kleinert M, Quiring V, Herrmann H, Silberhorn C. Fiber-coupled
plug-and-play heralded single photon source based on Ti:LiNbO3 and polymer technology.
Optics Express. 2023;31(14). doi:10.1364/oe.487581
apa: Kießler, C., Conradi, H., Kleinert, M., Quiring, V., Herrmann, H., & Silberhorn,
C. (2023). Fiber-coupled plug-and-play heralded single photon source based on
Ti:LiNbO3 and polymer technology. Optics Express, 31(14), Article
22685. https://doi.org/10.1364/oe.487581
bibtex: '@article{Kießler_Conradi_Kleinert_Quiring_Herrmann_Silberhorn_2023, title={Fiber-coupled
plug-and-play heralded single photon source based on Ti:LiNbO3 and polymer technology},
volume={31}, DOI={10.1364/oe.487581},
number={1422685}, journal={Optics Express}, publisher={Optica Publishing Group},
author={Kießler, Christian and Conradi, Hauke and Kleinert, Moritz and Quiring,
Viktor and Herrmann, Harald and Silberhorn, Christine}, year={2023} }'
chicago: Kießler, Christian, Hauke Conradi, Moritz Kleinert, Viktor Quiring, Harald
Herrmann, and Christine Silberhorn. “Fiber-Coupled Plug-and-Play Heralded Single
Photon Source Based on Ti:LiNbO3 and Polymer Technology.” Optics Express
31, no. 14 (2023). https://doi.org/10.1364/oe.487581.
ieee: 'C. Kießler, H. Conradi, M. Kleinert, V. Quiring, H. Herrmann, and C. Silberhorn,
“Fiber-coupled plug-and-play heralded single photon source based on Ti:LiNbO3
and polymer technology,” Optics Express, vol. 31, no. 14, Art. no. 22685,
2023, doi: 10.1364/oe.487581.'
mla: Kießler, Christian, et al. “Fiber-Coupled Plug-and-Play Heralded Single Photon
Source Based on Ti:LiNbO3 and Polymer Technology.” Optics Express, vol.
31, no. 14, 22685, Optica Publishing Group, 2023, doi:10.1364/oe.487581.
short: C. Kießler, H. Conradi, M. Kleinert, V. Quiring, H. Herrmann, C. Silberhorn,
Optics Express 31 (2023).
date_created: 2023-08-23T07:20:06Z
date_updated: 2023-08-23T07:25:37Z
doi: 10.1364/oe.487581
intvolume: ' 31'
issue: '14'
keyword:
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: Optica Publishing Group
status: public
title: Fiber-coupled plug-and-play heralded single photon source based on Ti:LiNbO3
and polymer technology
type: journal_article
user_id: '44252'
volume: 31
year: '2023'
...
---
_id: '43051'
abstract:
- lang: eng
text: We demonstrate the numerical and experimental realization of optimized optical
traveling-wave antennas made of low-loss dielectric materials. These antennas
exhibit highly directive radiation patterns and our studies reveal that this nature
comes from two dominant guided TE modes excited in the waveguide-like director
of the antenna, in addition to the leaky modes. The optimized antennas possess
a broadband nature and have a nearunity radiation efficiency at an operational
wavelength of 780 nm. Compared to the previously studied plasmonic antennas for
photon emission, our all-dielectric approach demonstrates a new class of highly
directional, low-loss, and broadband optical antennas.
author:
- first_name: Henna
full_name: Farheen, Henna
id: '53444'
last_name: Farheen
orcid: 0000-0001-7730-3489
- first_name: Lok-Yee
full_name: Yan, Lok-Yee
last_name: Yan
- first_name: Till
full_name: Leuteritz, Till
last_name: Leuteritz
- first_name: Siqi
full_name: Qiao, Siqi
last_name: Qiao
- first_name: Florian
full_name: Spreyer, Florian
last_name: Spreyer
- first_name: Christian
full_name: Schlickriede, Christian
last_name: Schlickriede
- first_name: Viktor
full_name: Quiring, Viktor
last_name: Quiring
- first_name: Christof
full_name: Eigner, Christof
last_name: Eigner
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Stefan
full_name: Linden, Stefan
last_name: Linden
- first_name: Viktor
full_name: Myroshnychenko, Viktor
id: '46371'
last_name: Myroshnychenko
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: 'Farheen H, Yan L-Y, Leuteritz T, et al. Tailoring the directive nature of
optical waveguide antennas. In: García-Blanco SM, Cheben P, eds. Integrated
Optics: Devices, Materials, and Technologies XXVII. SPIE; 2023:124241E. doi:10.1117/12.2658921'
apa: 'Farheen, H., Yan, L.-Y., Leuteritz, T., Qiao, S., Spreyer, F., Schlickriede,
C., Quiring, V., Eigner, C., Silberhorn, C., Zentgraf, T., Linden, S., Myroshnychenko,
V., & Förstner, J. (2023). Tailoring the directive nature of optical waveguide
antennas. In S. M. García-Blanco & P. Cheben (Eds.), Integrated Optics:
Devices, Materials, and Technologies XXVII (p. 124241E). SPIE. https://doi.org/10.1117/12.2658921'
bibtex: '@inproceedings{Farheen_Yan_Leuteritz_Qiao_Spreyer_Schlickriede_Quiring_Eigner_Silberhorn_Zentgraf_et
al._2023, title={Tailoring the directive nature of optical waveguide antennas},
DOI={10.1117/12.2658921}, booktitle={Integrated
Optics: Devices, Materials, and Technologies XXVII}, publisher={SPIE}, author={Farheen,
Henna and Yan, Lok-Yee and Leuteritz, Till and Qiao, Siqi and Spreyer, Florian
and Schlickriede, Christian and Quiring, Viktor and Eigner, Christof and Silberhorn,
Christine and Zentgraf, Thomas and et al.}, editor={García-Blanco, Sonia M. and
Cheben, Pavel}, year={2023}, pages={124241E} }'
chicago: 'Farheen, Henna, Lok-Yee Yan, Till Leuteritz, Siqi Qiao, Florian Spreyer,
Christian Schlickriede, Viktor Quiring, et al. “Tailoring the Directive Nature
of Optical Waveguide Antennas.” In Integrated Optics: Devices, Materials, and
Technologies XXVII, edited by Sonia M. García-Blanco and Pavel Cheben, 124241E.
SPIE, 2023. https://doi.org/10.1117/12.2658921.'
ieee: 'H. Farheen et al., “Tailoring the directive nature of optical waveguide
antennas,” in Integrated Optics: Devices, Materials, and Technologies XXVII,
2023, p. 124241E, doi: 10.1117/12.2658921.'
mla: 'Farheen, Henna, et al. “Tailoring the Directive Nature of Optical Waveguide
Antennas.” Integrated Optics: Devices, Materials, and Technologies XXVII,
edited by Sonia M. García-Blanco and Pavel Cheben, SPIE, 2023, p. 124241E, doi:10.1117/12.2658921.'
short: 'H. Farheen, L.-Y. Yan, T. Leuteritz, S. Qiao, F. Spreyer, C. Schlickriede,
V. Quiring, C. Eigner, C. Silberhorn, T. Zentgraf, S. Linden, V. Myroshnychenko,
J. Förstner, in: S.M. García-Blanco, P. Cheben (Eds.), Integrated Optics: Devices,
Materials, and Technologies XXVII, SPIE, 2023, p. 124241E.'
date_created: 2023-03-21T12:28:31Z
date_updated: 2025-05-23T05:57:14Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
- _id: '623'
doi: 10.1117/12.2658921
editor:
- first_name: Sonia M.
full_name: García-Blanco, Sonia M.
last_name: García-Blanco
- first_name: Pavel
full_name: Cheben, Pavel
last_name: Cheben
file:
- access_level: local
content_type: application/pdf
creator: fossie
date_created: 2023-03-22T09:25:57Z
date_updated: 2023-03-22T09:25:57Z
file_id: '43062'
file_name: 2023-01 Poster Photonics West Henna OWA_A0.pdf
file_size: 1426599
relation: main_file
file_date_updated: 2023-03-22T09:25:57Z
has_accepted_license: '1'
keyword:
- tet_topic_opticalantenna
language:
- iso: eng
page: 124241E
project:
- _id: '53'
grant_number: '231447078'
name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
Konzepten zu funktionellen Strukturen'
- _id: '65'
grant_number: '231447078'
name: 'TRR 142 - A08: TRR 142 - Nichtlineare Kopplung von Zwischenschicht-Exzitonen
in van der Waals-Heterostrukturen an plasmonische und dielektrische Nanokavitäten
(A08)'
publication: 'Integrated Optics: Devices, Materials, and Technologies XXVII'
publication_status: published
publisher: SPIE
status: public
title: Tailoring the directive nature of optical waveguide antennas
type: conference
user_id: '30525'
year: '2023'
...
---
_id: '61362'
abstract:
- lang: eng
text: We study the interaction of gray tracking and DC ionic conductivity
in Potassium Titanyl Phosphate (KTiOPO4, KTP) and present
a novel way to reduce conductivity via a potassium nitrate treatment improving
the device quality.
author:
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- first_name: Laura
full_name: Padberg, Laura
id: '40300'
last_name: Padberg
- first_name: Viktor
full_name: Quiring, Viktor
last_name: Quiring
- first_name: Adriana
full_name: Bocchini, Adriana
id: '58349'
last_name: Bocchini
orcid: 0000-0002-2134-3075
- first_name: Matteo
full_name: Santandrea, Matteo
id: '55095'
last_name: Santandrea
orcid: 0000-0001-5718-358X
- first_name: Uwe
full_name: Gerstmann, Uwe
id: '171'
last_name: Gerstmann
orcid: 0000-0002-4476-223X
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
id: '468'
last_name: Schmidt
orcid: 0000-0002-2717-5076
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
citation:
ama: 'Eigner C, Padberg L, Quiring V, et al. Potassium Titanyl Phosphate Material
Engineering Boosting Integrated Optical Source Performance. In: CLEO 2023.
Optica Publishing Group; 2023. doi:10.1364/cleo_at.2023.jw2a.57'
apa: Eigner, C., Padberg, L., Quiring, V., Bocchini, A., Santandrea, M., Gerstmann,
U., Schmidt, W. G., & Silberhorn, C. (2023). Potassium Titanyl Phosphate Material
Engineering Boosting Integrated Optical Source Performance. CLEO 2023.
https://doi.org/10.1364/cleo_at.2023.jw2a.57
bibtex: '@inproceedings{Eigner_Padberg_Quiring_Bocchini_Santandrea_Gerstmann_Schmidt_Silberhorn_2023,
title={Potassium Titanyl Phosphate Material Engineering Boosting Integrated Optical
Source Performance}, DOI={10.1364/cleo_at.2023.jw2a.57},
booktitle={CLEO 2023}, publisher={Optica Publishing Group}, author={Eigner, Christof
and Padberg, Laura and Quiring, Viktor and Bocchini, Adriana and Santandrea, Matteo
and Gerstmann, Uwe and Schmidt, Wolf Gero and Silberhorn, Christine}, year={2023}
}'
chicago: Eigner, Christof, Laura Padberg, Viktor Quiring, Adriana Bocchini, Matteo
Santandrea, Uwe Gerstmann, Wolf Gero Schmidt, and Christine Silberhorn. “Potassium
Titanyl Phosphate Material Engineering Boosting Integrated Optical Source Performance.”
In CLEO 2023. Optica Publishing Group, 2023. https://doi.org/10.1364/cleo_at.2023.jw2a.57.
ieee: 'C. Eigner et al., “Potassium Titanyl Phosphate Material Engineering
Boosting Integrated Optical Source Performance,” 2023, doi: 10.1364/cleo_at.2023.jw2a.57.'
mla: Eigner, Christof, et al. “Potassium Titanyl Phosphate Material Engineering
Boosting Integrated Optical Source Performance.” CLEO 2023, Optica Publishing
Group, 2023, doi:10.1364/cleo_at.2023.jw2a.57.
short: 'C. Eigner, L. Padberg, V. Quiring, A. Bocchini, M. Santandrea, U. Gerstmann,
W.G. Schmidt, C. Silberhorn, in: CLEO 2023, Optica Publishing Group, 2023.'
date_created: 2025-09-18T12:06:19Z
date_updated: 2025-09-18T12:08:56Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '790'
- _id: '288'
- _id: '230'
- _id: '429'
- _id: '35'
- _id: '27'
doi: 10.1364/cleo_at.2023.jw2a.57
language:
- iso: eng
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '53'
name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten
zu funktionellen Strukturen'
- _id: '54'
name: TRR 142 - Project Area A
- _id: '55'
name: TRR 142 - Project Area B
- _id: '168'
name: TRR 142 - Polaronen-Einfluss auf die optischen Eigenschaften von Lithiumniobat
(B07*)
- _id: '166'
name: TRR 142 - Subproject A11
publication: CLEO 2023
publication_status: published
publisher: Optica Publishing Group
status: public
title: Potassium Titanyl Phosphate Material Engineering Boosting Integrated Optical
Source Performance
type: conference
user_id: '16199'
year: '2023'
...
---
_id: '38541'
author:
- first_name: Sonja
full_name: Barkhofen, Sonja
id: '48188'
last_name: Barkhofen
- 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: Barkhofen S, Brecht B, Silberhorn C. Verschränkung wie am Fließband. Physik
in unserer Zeit. 2023;54(1):10-11. doi:https://doi.org/10.1002/piuz.202370107
apa: Barkhofen, S., Brecht, B., & Silberhorn, C. (2023). Verschränkung wie am
Fließband. Physik in unserer Zeit, 54(1), 10–11. https://doi.org/10.1002/piuz.202370107
bibtex: '@article{Barkhofen_Brecht_Silberhorn_2023, title={Verschränkung wie am
Fließband}, volume={54}, DOI={https://doi.org/10.1002/piuz.202370107},
number={1}, journal={Physik in unserer Zeit}, publisher={Wiley}, author={Barkhofen,
Sonja and Brecht, Benjamin and Silberhorn, Christine}, year={2023}, pages={10–11}
}'
chicago: 'Barkhofen, Sonja, Benjamin Brecht, and Christine Silberhorn. “Verschränkung
wie am Fließband.” Physik in unserer Zeit 54, no. 1 (2023): 10–11. https://doi.org/10.1002/piuz.202370107.'
ieee: 'S. Barkhofen, B. Brecht, and C. Silberhorn, “Verschränkung wie am Fließband,”
Physik in unserer Zeit, vol. 54, no. 1, pp. 10–11, 2023, doi: https://doi.org/10.1002/piuz.202370107.'
mla: Barkhofen, Sonja, et al. “Verschränkung wie am Fließband.” Physik in unserer
Zeit, vol. 54, no. 1, Wiley, 2023, pp. 10–11, doi:https://doi.org/10.1002/piuz.202370107.
short: S. Barkhofen, B. Brecht, C. Silberhorn, Physik in unserer Zeit 54 (2023)
10–11.
date_created: 2023-01-24T08:04:47Z
date_updated: 2025-12-04T13:36:42Z
department:
- _id: '623'
- _id: '15'
doi: https://doi.org/10.1002/piuz.202370107
intvolume: ' 54'
issue: '1'
language:
- iso: ger
page: 10-11
publication: Physik in unserer Zeit
publication_status: published
publisher: Wiley
status: public
title: Verschränkung wie am Fließband
type: journal_article
user_id: '48188'
volume: 54
year: '2023'
...
---
_id: '45578'
abstract:
- lang: eng
text: A frequency-flexible Nyquist pulse synthesizer is presented with optical pulse
bandwidths up to fopt=100 GHz and repetition rates equal to fopt/9, fabricated
in an electronic-photonic co-integrated platform utilizing linear on-chip drivers.
author:
- first_name: Christian
full_name: Kress, Christian
id: '13256'
last_name: Kress
orcid: 0000-0002-4403-2237
- first_name: Tobias
full_name: Schwabe, Tobias
id: '39217'
last_name: Schwabe
- 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: 'Kress C, Schwabe T, Silberhorn C, Scheytt JC. Generation of 100 GHz Periodic
Nyquist Pulses using Cascaded Mach-Zehnder Modulators in a Silicon Electronic-Photonic
Platform. In: Conference on Lasers and Electro-Optics (CLEO) 2023. Optica
Publishing Group; 2023. doi:https://doi.org/10.1364/CLEO_SI.2023.SF1P.6'
apa: Kress, C., Schwabe, T., Silberhorn, C., & Scheytt, J. C. (2023). Generation
of 100 GHz Periodic Nyquist Pulses using Cascaded Mach-Zehnder Modulators in a
Silicon Electronic-Photonic Platform. Conference on Lasers and Electro-Optics
(CLEO) 2023. Conference on Lasers and Electro-Optics (CLEO), San Jose, CA,
USA. https://doi.org/10.1364/CLEO_SI.2023.SF1P.6
bibtex: '@inproceedings{Kress_Schwabe_Silberhorn_Scheytt_2023, title={Generation
of 100 GHz Periodic Nyquist Pulses using Cascaded Mach-Zehnder Modulators in a
Silicon Electronic-Photonic Platform}, DOI={https://doi.org/10.1364/CLEO_SI.2023.SF1P.6},
booktitle={ Conference on Lasers and Electro-Optics (CLEO) 2023}, publisher={Optica
Publishing Group}, author={Kress, Christian and Schwabe, Tobias and Silberhorn,
Christine and Scheytt, J. Christoph}, year={2023} }'
chicago: Kress, Christian, Tobias Schwabe, Christine Silberhorn, and J. Christoph
Scheytt. “Generation of 100 GHz Periodic Nyquist Pulses Using Cascaded Mach-Zehnder
Modulators in a Silicon Electronic-Photonic Platform.” In Conference on Lasers
and Electro-Optics (CLEO) 2023. Optica Publishing Group, 2023. https://doi.org/10.1364/CLEO_SI.2023.SF1P.6.
ieee: 'C. Kress, T. Schwabe, C. Silberhorn, and J. C. Scheytt, “Generation of 100
GHz Periodic Nyquist Pulses using Cascaded Mach-Zehnder Modulators in a Silicon
Electronic-Photonic Platform,” presented at the Conference on Lasers and Electro-Optics
(CLEO), San Jose, CA, USA, 2023, doi: https://doi.org/10.1364/CLEO_SI.2023.SF1P.6.'
mla: Kress, Christian, et al. “Generation of 100 GHz Periodic Nyquist Pulses Using
Cascaded Mach-Zehnder Modulators in a Silicon Electronic-Photonic Platform.”
Conference on Lasers and Electro-Optics (CLEO) 2023, Optica Publishing Group,
2023, doi:https://doi.org/10.1364/CLEO_SI.2023.SF1P.6.
short: 'C. Kress, T. Schwabe, C. Silberhorn, J.C. Scheytt, in: Conference on Lasers
and Electro-Optics (CLEO) 2023, Optica Publishing Group, 2023.'
conference:
end_date: 2023-05-12
location: San Jose, CA, USA
name: ' Conference on Lasers and Electro-Optics (CLEO)'
start_date: 2023-05-08
date_created: 2023-06-12T10:25:25Z
date_updated: 2025-12-12T11:26:12Z
department:
- _id: '58'
- _id: '230'
- _id: '623'
doi: https://doi.org/10.1364/CLEO_SI.2023.SF1P.6
language:
- iso: eng
project:
- _id: '302'
name: 'PONyDAC: PONyDAC II - Präziser Optischer Nyquist-Puls-Synthesizer DAC'
- _id: '175'
name: 'TRR 142; TP C11: Kompakte Photonenpaar-Quelle mit ultraschnellen Modulatoren
auf Basis von CMOS und LNOI'
publication: ' Conference on Lasers and Electro-Optics (CLEO) 2023'
publisher: Optica Publishing Group
status: public
title: Generation of 100 GHz Periodic Nyquist Pulses using Cascaded Mach-Zehnder Modulators
in a Silicon Electronic-Photonic Platform
type: conference
user_id: '13256'
year: '2023'
...
---
_id: '44081'
article_number: '020306'
author:
- first_name: Laura
full_name: Serino, Laura
id: '88242'
last_name: Serino
- first_name: Jano
full_name: Gil López, Jano
id: '51223'
last_name: Gil López
- first_name: Michael
full_name: Stefszky, Michael
id: '42777'
last_name: Stefszky
- first_name: Raimund
full_name: Ricken, Raimund
last_name: Ricken
- first_name: Christof
full_name: Eigner, Christof
id: '13244'
last_name: Eigner
orcid: https://orcid.org/0000-0002-5693-3083
- 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, Gil López J, Stefszky M, et al. Realization of a Multi-Output Quantum
Pulse Gate for Decoding High-Dimensional Temporal Modes of Single-Photon States.
PRX Quantum. 2023;4(2). doi:10.1103/prxquantum.4.020306
apa: Serino, L., Gil López, J., Stefszky, M., Ricken, R., Eigner, C., Brecht, B.,
& Silberhorn, C. (2023). Realization of a Multi-Output Quantum Pulse Gate
for Decoding High-Dimensional Temporal Modes of Single-Photon States. PRX Quantum,
4(2), Article 020306. https://doi.org/10.1103/prxquantum.4.020306
bibtex: '@article{Serino_Gil López_Stefszky_Ricken_Eigner_Brecht_Silberhorn_2023,
title={Realization of a Multi-Output Quantum Pulse Gate for Decoding High-Dimensional
Temporal Modes of Single-Photon States}, volume={4}, DOI={10.1103/prxquantum.4.020306},
number={2020306}, journal={PRX Quantum}, publisher={American Physical Society
(APS)}, author={Serino, Laura and Gil López, Jano and Stefszky, Michael and Ricken,
Raimund and Eigner, Christof and Brecht, Benjamin and Silberhorn, Christine},
year={2023} }'
chicago: Serino, Laura, Jano Gil López, Michael Stefszky, Raimund Ricken, Christof
Eigner, Benjamin Brecht, and Christine Silberhorn. “Realization of a Multi-Output
Quantum Pulse Gate for Decoding High-Dimensional Temporal Modes of Single-Photon
States.” PRX Quantum 4, no. 2 (2023). https://doi.org/10.1103/prxquantum.4.020306.
ieee: 'L. Serino et al., “Realization of a Multi-Output Quantum Pulse Gate
for Decoding High-Dimensional Temporal Modes of Single-Photon States,” PRX
Quantum, vol. 4, no. 2, Art. no. 020306, 2023, doi: 10.1103/prxquantum.4.020306.'
mla: Serino, Laura, et al. “Realization of a Multi-Output Quantum Pulse Gate for
Decoding High-Dimensional Temporal Modes of Single-Photon States.” PRX Quantum,
vol. 4, no. 2, 020306, American Physical Society (APS), 2023, doi:10.1103/prxquantum.4.020306.
short: L. Serino, J. Gil López, M. Stefszky, R. Ricken, C. Eigner, B. Brecht, C.
Silberhorn, PRX Quantum 4 (2023).
date_created: 2023-04-20T12:38:23Z
date_updated: 2025-12-18T16:15:18Z
department:
- _id: '288'
- _id: '623'
- _id: '15'
doi: 10.1103/prxquantum.4.020306
intvolume: ' 4'
issue: '2'
keyword:
- General Physics and Astronomy
- Mathematical Physics
- Applied Mathematics
- Electronic
- Optical and Magnetic Materials
- Electrical and Electronic Engineering
- General Computer Science
language:
- iso: eng
publication: PRX Quantum
publication_identifier:
issn:
- 2691-3399
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Realization of a Multi-Output Quantum Pulse Gate for Decoding High-Dimensional
Temporal Modes of Single-Photon States
type: journal_article
user_id: '27150'
volume: 4
year: '2023'
...
---
_id: '42648'
abstract:
- lang: eng
text: In real photonic quantum systems losses are an unavoidable factor limiting
the scalability to many modes and particles, restraining their application in
fields as quantum information and communication. For this reason, a considerable
amount of engineering effort has been taken in order to improve the quality of
particle sources and system components. At the same time, data analysis and collection
methods based on post-selection have been used to mitigate the effect of particle
losses. This has allowed for investigating experimentally multi-particle evolutions
where the observer lacks knowledge about the system's intermediate propagation
states. Nonetheless, the fundamental question how losses affect the behaviour
of the surviving subset of a multi-particle system has not been investigated so
far. For this reason, here we study the impact of particle losses in a quantum
walk of two photons reconstructing the output probability distributions for one
photon conditioned on the loss of the other in a known mode and temporal step
of our evolution network. We present the underlying theoretical scheme that we
have devised in order to model controlled particle losses, we describe an experimental
platform capable of implementing our theory in a time multiplexing encoding. In
the end we show how localized particle losses change the output distributions
without altering their asymptotic spreading properties. Finally we devise a quantum
civilization problem, a two walker generalisation of single particle recurrence
processes.
article_number: '034005'
article_type: original
author:
- first_name: Federico
full_name: Pegoraro, Federico
id: '88928'
last_name: Pegoraro
- first_name: Philip
full_name: Held, Philip
id: '68236'
last_name: Held
- first_name: Sonja
full_name: Barkhofen, Sonja
id: '48188'
last_name: Barkhofen
- 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: Pegoraro F, Held P, Barkhofen S, Brecht B, Silberhorn C. Dynamic conditioning
of two particle discrete-time quantum walks. Physica Scripta. 2023;98(3).
doi:10.1088/1402-4896/acbcaa
apa: Pegoraro, F., Held, P., Barkhofen, S., Brecht, B., & Silberhorn, C. (2023).
Dynamic conditioning of two particle discrete-time quantum walks. Physica Scripta,
98(3), Article 034005. https://doi.org/10.1088/1402-4896/acbcaa
bibtex: '@article{Pegoraro_Held_Barkhofen_Brecht_Silberhorn_2023, title={Dynamic
conditioning of two particle discrete-time quantum walks}, volume={98}, DOI={10.1088/1402-4896/acbcaa},
number={3034005}, journal={Physica Scripta}, publisher={IOP Publishing}, author={Pegoraro,
Federico and Held, Philip and Barkhofen, Sonja and Brecht, Benjamin and Silberhorn,
Christine}, year={2023} }'
chicago: Pegoraro, Federico, Philip Held, Sonja Barkhofen, Benjamin Brecht, and
Christine Silberhorn. “Dynamic Conditioning of Two Particle Discrete-Time Quantum
Walks.” Physica Scripta 98, no. 3 (2023). https://doi.org/10.1088/1402-4896/acbcaa.
ieee: 'F. Pegoraro, P. Held, S. Barkhofen, B. Brecht, and C. Silberhorn, “Dynamic
conditioning of two particle discrete-time quantum walks,” Physica Scripta,
vol. 98, no. 3, Art. no. 034005, 2023, doi: 10.1088/1402-4896/acbcaa.'
mla: Pegoraro, Federico, et al. “Dynamic Conditioning of Two Particle Discrete-Time
Quantum Walks.” Physica Scripta, vol. 98, no. 3, 034005, IOP Publishing,
2023, doi:10.1088/1402-4896/acbcaa.
short: F. Pegoraro, P. Held, S. Barkhofen, B. Brecht, C. Silberhorn, Physica Scripta
98 (2023).
date_created: 2023-03-02T09:53:59Z
date_updated: 2026-01-09T09:49:31Z
department:
- _id: '623'
- _id: '15'
- _id: '288'
- _id: '169'
doi: 10.1088/1402-4896/acbcaa
intvolume: ' 98'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://iopscience.iop.org/article/10.1088/1402-4896/acbcaa
oa: '1'
publication: Physica Scripta
publication_identifier:
issn:
- 0031-8949
- 1402-4896
publication_status: published
publisher: IOP Publishing
status: public
title: Dynamic conditioning of two particle discrete-time quantum walks
type: journal_article
user_id: '68236'
volume: 98
year: '2023'
...