---
_id: '13520'
abstract:
- lang: eng
text: Atomistic simulations in the framework of the density functional theory have
been used to model morphologic and vibrational properties of lithium niobate–lithium
tantalate mixed crystals as a function of the [Nb]/[Ta] ratio. Structural parameters
such as the crystal volume and the lattice parameters a and c vary roughly linearly
from LiTaO3 to LiNbO3, showing only minor deviations from the Vegard behavior.
Our ab initio calculations demonstrate that the TO1, TO2 and TO4 vibrational modes
become harder with increasing Nb concentration. TO3 becomes softer with increasing
Nb content, instead. Furthermore, the investigated zone center A1 -TO phonon modes
are characterized by a pronounced stoichiometry dependence. Frequency shifts as
large as 30 cm−1 are expected as the [Nb]/[Ta] ratio grows from 0 to 1. Therefore,
spectroscopic techniques sensitive to the A1 modes (such as Raman spectroscopy),
can be employed for a direct and non-destructive determination of the crystal
composition.
author:
- first_name: Simone
full_name: Sanna, Simone
last_name: Sanna
- first_name: A.
full_name: Riefer, A.
last_name: Riefer
- first_name: Sergej
full_name: Neufeld, Sergej
id: '23261'
last_name: Neufeld
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
id: '468'
last_name: Schmidt
orcid: 0000-0002-2717-5076
- first_name: Gerhard
full_name: Berth, Gerhard
id: '53'
last_name: Berth
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
- first_name: A.
full_name: Widhalm, A.
last_name: Widhalm
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
citation:
ama: Sanna S, Riefer A, Neufeld S, et al. Vibrational Fingerprints of LiNbO3-LiTaO3Mixed
Crystals. Ferroelectrics. 2013;447(1):63-68. doi:10.1080/00150193.2013.821893
apa: Sanna, S., Riefer, A., Neufeld, S., Schmidt, W. G., Berth, G., Rüsing, M.,
Widhalm, A., & Zrenner, A. (2013). Vibrational Fingerprints of LiNbO3-LiTaO3Mixed
Crystals. Ferroelectrics, 447(1), 63–68. https://doi.org/10.1080/00150193.2013.821893
bibtex: '@article{Sanna_Riefer_Neufeld_Schmidt_Berth_Rüsing_Widhalm_Zrenner_2013,
title={Vibrational Fingerprints of LiNbO3-LiTaO3Mixed Crystals}, volume={447},
DOI={10.1080/00150193.2013.821893},
number={1}, journal={Ferroelectrics}, author={Sanna, Simone and Riefer, A. and
Neufeld, Sergej and Schmidt, Wolf Gero and Berth, Gerhard and Rüsing, Michael
and Widhalm, A. and Zrenner, Artur}, year={2013}, pages={63–68} }'
chicago: 'Sanna, Simone, A. Riefer, Sergej Neufeld, Wolf Gero Schmidt, Gerhard Berth,
Michael Rüsing, A. Widhalm, and Artur Zrenner. “Vibrational Fingerprints of LiNbO3-LiTaO3Mixed
Crystals.” Ferroelectrics 447, no. 1 (2013): 63–68. https://doi.org/10.1080/00150193.2013.821893.'
ieee: 'S. Sanna et al., “Vibrational Fingerprints of LiNbO3-LiTaO3Mixed Crystals,”
Ferroelectrics, vol. 447, no. 1, pp. 63–68, 2013, doi: 10.1080/00150193.2013.821893.'
mla: Sanna, Simone, et al. “Vibrational Fingerprints of LiNbO3-LiTaO3Mixed Crystals.”
Ferroelectrics, vol. 447, no. 1, 2013, pp. 63–68, doi:10.1080/00150193.2013.821893.
short: S. Sanna, A. Riefer, S. Neufeld, W.G. Schmidt, G. Berth, M. Rüsing, A. Widhalm,
A. Zrenner, Ferroelectrics 447 (2013) 63–68.
date_created: 2019-09-30T13:50:40Z
date_updated: 2023-10-09T08:22:10Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '230'
doi: 10.1080/00150193.2013.821893
intvolume: ' 447'
issue: '1'
keyword:
- Ferroelectrics
- vibrational properties
- LiNbO3
- LiTaO3
- mixed crystals
language:
- iso: eng
page: 63-68
project:
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Ferroelectrics
publication_identifier:
issn:
- 0015-0193
- 1563-5112
publication_status: published
status: public
title: Vibrational Fingerprints of LiNbO3-LiTaO3Mixed Crystals
type: journal_article
user_id: '14931'
volume: 447
year: '2013'
...
---
_id: '4353'
article_type: original
author:
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
citation:
ama: Schumacher S, Zrenner A. Two-photon physics with quantum-dot biexcitons. ULTRAFAST
PHENOMENA AND NANOPHOTONICS XVII. Published online 2013. doi:10.1117/12.2004191
apa: Schumacher, S., & Zrenner, A. (2013). Two-photon physics with quantum-dot
biexcitons. ULTRAFAST PHENOMENA AND NANOPHOTONICS XVII. https://doi.org/10.1117/12.2004191
bibtex: '@article{Schumacher_Zrenner_2013, title={Two-photon physics with quantum-dot
biexcitons}, DOI={10.1117/12.2004191},
journal={ULTRAFAST PHENOMENA AND NANOPHOTONICS XVII}, author={Schumacher, Stefan
and Zrenner, Artur}, year={2013} }'
chicago: Schumacher, Stefan, and Artur Zrenner. “Two-Photon Physics with Quantum-Dot
Biexcitons.” ULTRAFAST PHENOMENA AND NANOPHOTONICS XVII, 2013. https://doi.org/10.1117/12.2004191.
ieee: 'S. Schumacher and A. Zrenner, “Two-photon physics with quantum-dot biexcitons,”
ULTRAFAST PHENOMENA AND NANOPHOTONICS XVII, 2013, doi: 10.1117/12.2004191.'
mla: Schumacher, Stefan, and Artur Zrenner. “Two-Photon Physics with Quantum-Dot
Biexcitons.” ULTRAFAST PHENOMENA AND NANOPHOTONICS XVII, 2013, doi:10.1117/12.2004191.
short: S. Schumacher, A. Zrenner, ULTRAFAST PHENOMENA AND NANOPHOTONICS XVII (2013).
date_created: 2018-09-04T14:18:54Z
date_updated: 2025-12-05T14:52:46Z
department:
- _id: '15'
- _id: '230'
- _id: '35'
- _id: '170'
- _id: '297'
doi: 10.1117/12.2004191
language:
- iso: eng
publication: ULTRAFAST PHENOMENA AND NANOPHOTONICS XVII
publication_identifier:
issn:
- 0277-786X
status: public
title: Two-photon physics with quantum-dot biexcitons
type: journal_article
user_id: '16199'
year: '2013'
...
---
_id: '4380'
abstract:
- lang: eng
text: The structural and vibrational properties of lithium niobate (LN) – lithium
tantalate (LT) mixed crystals (LNT, LiNb1-xTaxO3) are investigated over the whole
composition range by first-principles simulations. The crystal volume grows roughly
linearly from LT to LN, whereby the lattice parameters a and c show minor deviations
from the Vegard behavior between the end compounds, LiNbO3 and LiTaO3. Our calculations
in the framework of the density functional theory show the TO1, TO2 and TO4-modes
to become harder with increasing Nb concentration. TO3 becomes softer with increasing
Nb content, instead. The frequency shifts of the zone center A1-TO phonon modes
for crystals with different compositions are found to be as large as 30 cm-1.
Raman spectroscopy, which is sensitive to the A1 modes, can be therefore employed
to determine the crystal composition.
author:
- first_name: Simone
full_name: Sanna, Simone
last_name: Sanna
- first_name: Arthur
full_name: Riefer, Arthur
last_name: Riefer
- first_name: Sergej
full_name: Neufeld, Sergej
last_name: Neufeld
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
last_name: Schmidt
- first_name: Gerhard
full_name: Berth, Gerhard
id: '53'
last_name: Berth
- first_name: Alex
full_name: Widhalm, Alex
last_name: Widhalm
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
citation:
ama: 'Sanna S, Riefer A, Neufeld S, et al. Vibrational fingerprints of LiNbO3-LiTaO3
mixed crystals. In: Proceedings of ISAF-ECAPD-PFM 2012. ; 2012.'
apa: Sanna, S., Riefer, A., Neufeld, S., Schmidt, W. G., Berth, G., Widhalm, A.,
& Zrenner, A. (2012). Vibrational fingerprints of LiNbO3-LiTaO3 mixed crystals.
In Proceedings of ISAF-ECAPD-PFM 2012. Aveiro, Portugal.
bibtex: '@inproceedings{Sanna_Riefer_Neufeld_Schmidt_Berth_Widhalm_Zrenner_2012,
title={Vibrational fingerprints of LiNbO3-LiTaO3 mixed crystals}, booktitle={Proceedings
of ISAF-ECAPD-PFM 2012}, author={Sanna, Simone and Riefer, Arthur and Neufeld,
Sergej and Schmidt, Wolf Gero and Berth, Gerhard and Widhalm, Alex and Zrenner,
Artur}, year={2012} }'
chicago: Sanna, Simone, Arthur Riefer, Sergej Neufeld, Wolf Gero Schmidt, Gerhard
Berth, Alex Widhalm, and Artur Zrenner. “Vibrational Fingerprints of LiNbO3-LiTaO3
Mixed Crystals.” In Proceedings of ISAF-ECAPD-PFM 2012, 2012.
ieee: S. Sanna et al., “Vibrational fingerprints of LiNbO3-LiTaO3 mixed crystals,”
in Proceedings of ISAF-ECAPD-PFM 2012, Aveiro, Portugal, 2012.
mla: Sanna, Simone, et al. “Vibrational Fingerprints of LiNbO3-LiTaO3 Mixed Crystals.”
Proceedings of ISAF-ECAPD-PFM 2012, 2012.
short: 'S. Sanna, A. Riefer, S. Neufeld, W.G. Schmidt, G. Berth, A. Widhalm, A.
Zrenner, in: Proceedings of ISAF-ECAPD-PFM 2012, 2012.'
conference:
end_date: 2012-07-13
location: Aveiro, Portugal
name: 2012 INTERNATIONAL SYMPOSIUM ON APPLICATIONS OF FERROELECTRICS HELD JOINTLY
WITH 11TH IEEE ECAPD AND IEEE PFM (ISAF/ECAPD/PFM)
start_date: 2012-07-09
date_created: 2018-09-12T14:32:09Z
date_updated: 2022-01-06T07:01:00Z
department:
- _id: '15'
- _id: '230'
- _id: '35'
keyword:
- Ferroelectrics
- Vibrational properties
- LiNbO3
- LiTaO3
- Mixed Crystals
publication: Proceedings of ISAF-ECAPD-PFM 2012
status: public
title: Vibrational fingerprints of LiNbO3-LiTaO3 mixed crystals
type: conference
user_id: '49428'
year: '2012'
...
---
_id: '4381'
abstract:
- lang: eng
text: Coherent physics and applications of exciton qubits in electric fi eld tunable
quantum dot structures are our focus. Excitations with picosecond (ps) laser pulses
result in qubit rotations. Using state projection by tunnelling the readout can
be performed in quantitative way. As a function of electric fi eld induced detuning
Ramsey fringes of a single exciton qubit can be observed and controlled for double
pulse excitation. Therefore it is possible to demonstrate voltage controlled qubit
manipulations within a wide range of pulse delays. Using fast electric signals,
phase-locked to ps-laser pulses, the coherent control of an exciton qubit can
be obtained by electric interaction. Such voltage controlled qubit manipulations
seem to be essential for new types of optoelectronic quantum gates and novel applications
in the fi eld of coherent optoelectronics.
author:
- first_name: Steffen
full_name: Michaelis de Vasconcellos, Steffen
last_name: Michaelis de Vasconcellos
- first_name: Simon
full_name: Gordon, Simon
last_name: Gordon
- first_name: Dirk
full_name: Mantei, Dirk
last_name: Mantei
- first_name: Yves Alexander
full_name: Leier, Yves Alexander
last_name: Leier
- first_name: M.
full_name: Al-Hmoud, M.
last_name: Al-Hmoud
- first_name: Wadim
full_name: Quiring, Wadim
last_name: Quiring
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
citation:
ama: 'Michaelis de Vasconcellos S, Gordon S, Mantei D, et al. Coherent optoelectronics
with quantum dots. In: Jahnke F, ed. QUANTUM OPTICS WITH SEMICONDUCTOR NANOSTRUCTURES.
Woodhead Publishing; 2012:528-559.'
apa: Michaelis de Vasconcellos, S., Gordon, S., Mantei, D., Leier, Y. A., Al-Hmoud,
M., Quiring, W., & Zrenner, A. (2012). Coherent optoelectronics with quantum
dots. In F. Jahnke (Ed.), QUANTUM OPTICS WITH SEMICONDUCTOR NANOSTRUCTURES
(pp. 528–559). Woodhead Publishing.
bibtex: '@inbook{Michaelis de Vasconcellos_Gordon_Mantei_Leier_Al-Hmoud_Quiring_Zrenner_2012,
title={Coherent optoelectronics with quantum dots}, booktitle={QUANTUM OPTICS
WITH SEMICONDUCTOR NANOSTRUCTURES}, publisher={Woodhead Publishing}, author={Michaelis
de Vasconcellos, Steffen and Gordon, Simon and Mantei, Dirk and Leier, Yves Alexander
and Al-Hmoud, M. and Quiring, Wadim and Zrenner, Artur}, editor={Jahnke, FrankEditor},
year={2012}, pages={528–559} }'
chicago: Michaelis de Vasconcellos, Steffen, Simon Gordon, Dirk Mantei, Yves Alexander
Leier, M. Al-Hmoud, Wadim Quiring, and Artur Zrenner. “Coherent Optoelectronics
with Quantum Dots.” In QUANTUM OPTICS WITH SEMICONDUCTOR NANOSTRUCTURES,
edited by Frank Jahnke, 528–59. Woodhead Publishing, 2012.
ieee: S. Michaelis de Vasconcellos et al., “Coherent optoelectronics with
quantum dots,” in QUANTUM OPTICS WITH SEMICONDUCTOR NANOSTRUCTURES, F.
Jahnke, Ed. Woodhead Publishing, 2012, pp. 528–559.
mla: Michaelis de Vasconcellos, Steffen, et al. “Coherent Optoelectronics with Quantum
Dots.” QUANTUM OPTICS WITH SEMICONDUCTOR NANOSTRUCTURES, edited by Frank
Jahnke, Woodhead Publishing, 2012, pp. 528–59.
short: 'S. Michaelis de Vasconcellos, S. Gordon, D. Mantei, Y.A. Leier, M. Al-Hmoud,
W. Quiring, A. Zrenner, in: F. Jahnke (Ed.), QUANTUM OPTICS WITH SEMICONDUCTOR
NANOSTRUCTURES, Woodhead Publishing, 2012, pp. 528–559.'
date_created: 2018-09-13T06:43:40Z
date_updated: 2022-01-06T07:01:00Z
department:
- _id: '15'
- _id: '230'
- _id: '35'
editor:
- first_name: Frank
full_name: Jahnke, Frank
last_name: Jahnke
keyword:
- excitons
- quantum bits
- coherent manipulation
- Ramsey interference
- quantum gate
language:
- iso: eng
page: 528-559
publication: QUANTUM OPTICS WITH SEMICONDUCTOR NANOSTRUCTURES
publication_identifier:
isbn:
- 9780857092328 0857092324
publication_status: published
publisher: Woodhead Publishing
status: public
title: Coherent optoelectronics with quantum dots
type: book_chapter
user_id: '49428'
year: '2012'
...
---
_id: '3974'
abstract:
- lang: eng
text: We study the quantum properties and statistics of photons emitted by a quantum-dot
biexciton inside a cavity. In the biexciton-exciton cascade, fine-structure splitting
between exciton levels degrades polarization-entanglement for the emitted pair
of photons. However, here we show that the polarization-entanglement can be preserved
in such a system through simultaneous emission of two degenerate photons into
cavity modes tuned to half the biexciton energy. Based on detailed theoretical
calculations for realistic quantum-dot and cavity parameters, we quantify the
degree of achievable entanglement.
article_type: original
author:
- first_name: Stefan
full_name: Schumacher, Stefan
id: '27271'
last_name: Schumacher
orcid: 0000-0003-4042-4951
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: Matthias
full_name: Florian, Matthias
last_name: Florian
- first_name: Christopher
full_name: Gies, Christopher
last_name: Gies
- first_name: Paul
full_name: Gartner, Paul
last_name: Gartner
- first_name: Frank
full_name: Jahnke, Frank
last_name: Jahnke
citation:
ama: Schumacher S, Förstner J, Zrenner A, et al. Cavity-assisted emission of polarization-entangled
photons from biexcitons in quantum dots with fine-structure splitting. Optics
Express. 2012;20(5):5335-5342. doi:10.1364/oe.20.005335
apa: Schumacher, S., Förstner, J., Zrenner, A., Florian, M., Gies, C., Gartner,
P., & Jahnke, F. (2012). Cavity-assisted emission of polarization-entangled
photons from biexcitons in quantum dots with fine-structure splitting. Optics
Express, 20(5), 5335–5342. https://doi.org/10.1364/oe.20.005335
bibtex: '@article{Schumacher_Förstner_Zrenner_Florian_Gies_Gartner_Jahnke_2012,
title={Cavity-assisted emission of polarization-entangled photons from biexcitons
in quantum dots with fine-structure splitting}, volume={20}, DOI={10.1364/oe.20.005335},
number={5}, journal={Optics Express}, publisher={OSA}, author={Schumacher, Stefan
and Förstner, Jens and Zrenner, Artur and Florian, Matthias and Gies, Christopher
and Gartner, Paul and Jahnke, Frank}, year={2012}, pages={5335–5342} }'
chicago: 'Schumacher, Stefan, Jens Förstner, Artur Zrenner, Matthias Florian, Christopher
Gies, Paul Gartner, and Frank Jahnke. “Cavity-Assisted Emission of Polarization-Entangled
Photons from Biexcitons in Quantum Dots with Fine-Structure Splitting.” Optics
Express 20, no. 5 (2012): 5335–42. https://doi.org/10.1364/oe.20.005335.'
ieee: 'S. Schumacher et al., “Cavity-assisted emission of polarization-entangled
photons from biexcitons in quantum dots with fine-structure splitting,” Optics
Express, vol. 20, no. 5, pp. 5335–5342, 2012, doi: 10.1364/oe.20.005335.'
mla: Schumacher, Stefan, et al. “Cavity-Assisted Emission of Polarization-Entangled
Photons from Biexcitons in Quantum Dots with Fine-Structure Splitting.” Optics
Express, vol. 20, no. 5, OSA, 2012, pp. 5335–42, doi:10.1364/oe.20.005335.
short: S. Schumacher, J. Förstner, A. Zrenner, M. Florian, C. Gies, P. Gartner,
F. Jahnke, Optics Express 20 (2012) 5335–5342.
date_created: 2018-08-21T09:03:31Z
date_updated: 2025-12-16T11:12:04Z
ddc:
- '530'
department:
- _id: '15'
- _id: '290'
- _id: '230'
- _id: '297'
- _id: '35'
- _id: '170'
- _id: '34'
- _id: '61'
- _id: '27'
doi: 10.1364/oe.20.005335
file:
- access_level: open_access
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-21T09:05:01Z
date_updated: 2018-09-04T19:10:02Z
file_id: '3975'
file_name: 2012 Schumacher,Förstner,Zrenner,Florian,Gies,Gartner,Jahnke_Cavity assisted
emission of polarization-entangled photons.pdf
file_size: 751384
relation: main_file
file_date_updated: 2018-09-04T19:10:02Z
has_accepted_license: '1'
intvolume: ' 20'
issue: '5'
keyword:
- tet_topic_qd
language:
- iso: eng
oa: '1'
page: 5335-5342
project:
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: OSA
status: public
title: Cavity-assisted emission of polarization-entangled photons from biexcitons
in quantum dots with fine-structure splitting
type: journal_article
urn: '39744'
user_id: '16199'
volume: 20
year: '2012'
...
---
_id: '3972'
abstract:
- lang: eng
text: Using a finite-difference time-domain method, we theoretically investigate
the optical spectra of crossing perpendicular photonic crystal waveguides with
quantum dots embedded in the central rod. The waveguides are designed so that
the light mainly propagates along one direction and the cross talk is greatly
reduced in the transverse direction. It is shown that when a quantum dot (QD)
is resonant with the cavity, strong coupling can be observed via both the transmission
and crosstalk spectrum. If the cavity is far off-resonant from the QD, both the
cavity mode and the QD signal can be detected in the transverse direction since
the laser field is greatly suppressed in this direction. This structure could
have strong implications for resonant excitation and in-plane detection of QD
optical spectroscopy.
article_type: original
author:
- first_name: Xiaohong
full_name: Song, Xiaohong
last_name: Song
- first_name: Stefan
full_name: Declair, Stefan
last_name: Declair
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Song X, Declair S, Meier T, Zrenner A, Förstner J. Photonic crystal waveguides
intersection for resonant quantum dot optical spectroscopy detection. Optics
Express. 2012;20(13):14130-14136. doi:10.1364/oe.20.014130
apa: Song, X., Declair, S., Meier, T., Zrenner, A., & Förstner, J. (2012). Photonic
crystal waveguides intersection for resonant quantum dot optical spectroscopy
detection. Optics Express, 20(13), 14130–14136. https://doi.org/10.1364/oe.20.014130
bibtex: '@article{Song_Declair_Meier_Zrenner_Förstner_2012, title={Photonic crystal
waveguides intersection for resonant quantum dot optical spectroscopy detection},
volume={20}, DOI={10.1364/oe.20.014130},
number={13}, journal={Optics Express}, publisher={The Optical Society}, author={Song,
Xiaohong and Declair, Stefan and Meier, Torsten and Zrenner, Artur and Förstner,
Jens}, year={2012}, pages={14130–14136} }'
chicago: 'Song, Xiaohong, Stefan Declair, Torsten Meier, Artur Zrenner, and Jens
Förstner. “Photonic Crystal Waveguides Intersection for Resonant Quantum Dot Optical
Spectroscopy Detection.” Optics Express 20, no. 13 (2012): 14130–36. https://doi.org/10.1364/oe.20.014130.'
ieee: 'X. Song, S. Declair, T. Meier, A. Zrenner, and J. Förstner, “Photonic crystal
waveguides intersection for resonant quantum dot optical spectroscopy detection,”
Optics Express, vol. 20, no. 13, pp. 14130–14136, 2012, doi: 10.1364/oe.20.014130.'
mla: Song, Xiaohong, et al. “Photonic Crystal Waveguides Intersection for Resonant
Quantum Dot Optical Spectroscopy Detection.” Optics Express, vol. 20, no.
13, The Optical Society, 2012, pp. 14130–36, doi:10.1364/oe.20.014130.
short: X. Song, S. Declair, T. Meier, A. Zrenner, J. Förstner, Optics Express 20
(2012) 14130–14136.
date_created: 2018-08-21T08:40:38Z
date_updated: 2025-12-16T11:33:40Z
ddc:
- '530'
department:
- _id: '15'
- _id: '290'
- _id: '293'
- _id: '230'
- _id: '170'
- _id: '61'
- _id: '35'
- _id: '34'
doi: 10.1364/oe.20.014130
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-21T08:43:44Z
date_updated: 2018-08-21T08:43:44Z
file_id: '3973'
file_name: 2012 Song,Declair,Meier,Zrenner,Förstner_Photnic crystal waveguides intersection
for resonant quantum dot optical spectroscopy detection.pdf
file_size: 1437112
relation: main_file
success: 1
file_date_updated: 2018-08-21T08:43:44Z
has_accepted_license: '1'
intvolume: ' 20'
issue: '13'
keyword:
- tet_topic_phc
- tet_topic_qd
language:
- iso: eng
page: 14130-14136
publication: Optics Express
publication_identifier:
issn:
- 1094-4087
publication_status: published
publisher: The Optical Society
status: public
title: Photonic crystal waveguides intersection for resonant quantum dot optical spectroscopy
detection
type: journal_article
user_id: '16199'
volume: 20
year: '2012'
...
---
_id: '4544'
abstract:
- lang: eng
text: The existence of localized vibrational modes both at the positive and at the
negative LiNbO3 (0001) surface is demonstrated by means of first-principles calculations
and Raman spectroscopy measurements. First, the phonon modes of the crystal bulk
and of the (0001) surface are calculated within the density functional theory.
In a second step, the Raman spectra of LiNbO3 bulk and of the two surfaces are
measured. The phonon modes localized at the two surfaces are found to be substantially
different, and are also found to differ from the bulk modes. The calculated and
measured frequencies are in agreement within the error of the method. Raman spectroscopy
is shown to be sensitive to differences between bulk and surface and between positive
and negative surface. It represents therefore an alternative method to determine
the surface polarity, which does not exploit the pyroelectric or piezoelectric
properties of the material.
article_type: original
author:
- first_name: S.
full_name: Sanna, S.
last_name: Sanna
- first_name: Gerhard
full_name: Berth, Gerhard
id: '53'
last_name: Berth
- first_name: W.
full_name: Hahn, W.
last_name: Hahn
- first_name: A.
full_name: Widhalm, A.
last_name: Widhalm
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: W. G.
full_name: Schmidt, W. G.
last_name: Schmidt
citation:
ama: Sanna S, Berth G, Hahn W, Widhalm A, Zrenner A, Schmidt WG. Vibrational properties
of the LiNbO3 z-surfaces. IEEE Transactions on Ultrasonics, Ferroelectrics
and Frequency Control. 2011;58(9):1751-1756. doi:10.1109/tuffc.2011.2012
apa: Sanna, S., Berth, G., Hahn, W., Widhalm, A., Zrenner, A., & Schmidt, W.
G. (2011). Vibrational properties of the LiNbO3 z-surfaces. IEEE Transactions
on Ultrasonics, Ferroelectrics and Frequency Control, 58(9), 1751–1756.
https://doi.org/10.1109/tuffc.2011.2012
bibtex: '@article{Sanna_Berth_Hahn_Widhalm_Zrenner_Schmidt_2011, title={Vibrational
properties of the LiNbO3 z-surfaces}, volume={58}, DOI={10.1109/tuffc.2011.2012},
number={9}, journal={IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency
Control}, publisher={Institute of Electrical and Electronics Engineers (IEEE)},
author={Sanna, S. and Berth, Gerhard and Hahn, W. and Widhalm, A. and Zrenner,
Artur and Schmidt, W. G.}, year={2011}, pages={1751–1756} }'
chicago: 'Sanna, S., Gerhard Berth, W. Hahn, A. Widhalm, Artur Zrenner, and W. G.
Schmidt. “Vibrational Properties of the LiNbO3 Z-Surfaces.” IEEE Transactions
on Ultrasonics, Ferroelectrics and Frequency Control 58, no. 9 (2011): 1751–56.
https://doi.org/10.1109/tuffc.2011.2012.'
ieee: S. Sanna, G. Berth, W. Hahn, A. Widhalm, A. Zrenner, and W. G. Schmidt, “Vibrational
properties of the LiNbO3 z-surfaces,” IEEE Transactions on Ultrasonics, Ferroelectrics
and Frequency Control, vol. 58, no. 9, pp. 1751–1756, 2011.
mla: Sanna, S., et al. “Vibrational Properties of the LiNbO3 Z-Surfaces.” IEEE
Transactions on Ultrasonics, Ferroelectrics and Frequency Control, vol. 58,
no. 9, Institute of Electrical and Electronics Engineers (IEEE), 2011, pp. 1751–56,
doi:10.1109/tuffc.2011.2012.
short: S. Sanna, G. Berth, W. Hahn, A. Widhalm, A. Zrenner, W.G. Schmidt, IEEE Transactions
on Ultrasonics, Ferroelectrics and Frequency Control 58 (2011) 1751–1756.
date_created: 2018-09-20T11:33:31Z
date_updated: 2022-01-06T07:01:09Z
department:
- _id: '15'
- _id: '230'
- _id: '35'
doi: 10.1109/tuffc.2011.2012
intvolume: ' 58'
issue: '9'
language:
- iso: eng
page: 1751-1756
publication: IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
publication_identifier:
issn:
- 0885-3010
publication_status: published
publisher: Institute of Electrical and Electronics Engineers (IEEE)
status: public
title: Vibrational properties of the LiNbO3 z-surfaces
type: journal_article
user_id: '49428'
volume: 58
year: '2011'
...
---
_id: '4545'
abstract:
- lang: eng
text: Laser irradiation damage in ZnTe epilayers was analyzed in situ by power-density-dependent
and time-resolved micro-Raman spectroscopy. Damage by ablation or compound decomposition
on the sample surface was revealed by the decrease of the ZnTe–nLO mode intensity
with the increase of laser power density. The appearance of the peaks associated
with the stronger crystalline-tellurium modes, tellurium aggregates and second-order
Raman scattering at room temperature μ-Raman spectra was observed for higher power
densities than 4.4 × 105 W cm−2. The Raman signal time transients of ZnTe–nLO
and crystalline-tellurium modes reveal an exponential evolution of the laser irradiation
damage and a fast formation of crystalline tellurium aggregates on the layer surface.
article_number: '105023'
article_type: original
author:
- first_name: V
full_name: Wiedemeier, V
last_name: Wiedemeier
- first_name: Gerhard
full_name: Berth, Gerhard
id: '53'
last_name: Berth
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: E M
full_name: Larramendi, E M
last_name: Larramendi
- first_name: U
full_name: Woggon, U
last_name: Woggon
- first_name: K
full_name: Lischka, K
last_name: Lischka
- first_name: D
full_name: Schikora, D
last_name: Schikora
citation:
ama: Wiedemeier V, Berth G, Zrenner A, et al. In situ characterization of ZnTe epilayer
irradiation via time-resolved and power-density-dependent Raman spectroscopy.
Semiconductor Science and Technology. 2011;26(10). doi:10.1088/0268-1242/26/10/105023
apa: Wiedemeier, V., Berth, G., Zrenner, A., Larramendi, E. M., Woggon, U., Lischka,
K., & Schikora, D. (2011). In situ characterization of ZnTe epilayer irradiation
via time-resolved and power-density-dependent Raman spectroscopy. Semiconductor
Science and Technology, 26(10). https://doi.org/10.1088/0268-1242/26/10/105023
bibtex: '@article{Wiedemeier_Berth_Zrenner_Larramendi_Woggon_Lischka_Schikora_2011,
title={In situ characterization of ZnTe epilayer irradiation via time-resolved
and power-density-dependent Raman spectroscopy}, volume={26}, DOI={10.1088/0268-1242/26/10/105023},
number={10105023}, journal={Semiconductor Science and Technology}, publisher={IOP
Publishing}, author={Wiedemeier, V and Berth, Gerhard and Zrenner, Artur and Larramendi,
E M and Woggon, U and Lischka, K and Schikora, D}, year={2011} }'
chicago: Wiedemeier, V, Gerhard Berth, Artur Zrenner, E M Larramendi, U Woggon,
K Lischka, and D Schikora. “In Situ Characterization of ZnTe Epilayer Irradiation
via Time-Resolved and Power-Density-Dependent Raman Spectroscopy.” Semiconductor
Science and Technology 26, no. 10 (2011). https://doi.org/10.1088/0268-1242/26/10/105023.
ieee: V. Wiedemeier et al., “In situ characterization of ZnTe epilayer irradiation
via time-resolved and power-density-dependent Raman spectroscopy,” Semiconductor
Science and Technology, vol. 26, no. 10, 2011.
mla: Wiedemeier, V., et al. “In Situ Characterization of ZnTe Epilayer Irradiation
via Time-Resolved and Power-Density-Dependent Raman Spectroscopy.” Semiconductor
Science and Technology, vol. 26, no. 10, 105023, IOP Publishing, 2011, doi:10.1088/0268-1242/26/10/105023.
short: V. Wiedemeier, G. Berth, A. Zrenner, E.M. Larramendi, U. Woggon, K. Lischka,
D. Schikora, Semiconductor Science and Technology 26 (2011).
date_created: 2018-09-20T11:36:28Z
date_updated: 2022-01-06T07:01:09Z
department:
- _id: '15'
- _id: '230'
- _id: '35'
doi: 10.1088/0268-1242/26/10/105023
intvolume: ' 26'
issue: '10'
language:
- iso: eng
publication: Semiconductor Science and Technology
publication_identifier:
issn:
- 0268-1242
- 1361-6641
publication_status: published
publisher: IOP Publishing
status: public
title: In situ characterization of ZnTe epilayer irradiation via time-resolved and
power-density-dependent Raman spectroscopy
type: journal_article
user_id: '49428'
volume: 26
year: '2011'
...
---
_id: '4546'
abstract:
- lang: eng
text: Silicon oxynitride (SiON) layers for telecommunication device application
are grown by Plasma Enhanced Chemical Vapor Deposition (PECVD) for various gas
compositions of SiH4, N2O and NH3. Processing and annealing effects on the oxynitride
films were studied by Fourier Transform Infrared Spectroscopy (FTIR) and Atomic
Force Microscopy (AFM) measurements. By reduction of the silane (SiH4) gas flow
and enhancement of the PECVD deposition temperature, the absorption loss due to
NH bands can be nearly completely erased. Furthermore the surface roughness can
be reduced by decreasing the gas flow and rising the deposition temperature. First
waveguide structures are introduced and their characterization is presented.
author:
- first_name: Torsten
full_name: Frers, Torsten
last_name: Frers
- first_name: Thomas
full_name: Hett, Thomas
last_name: Hett
- first_name: Ulrich
full_name: Hilleringmann, Ulrich
last_name: Hilleringmann
- first_name: Gerhard
full_name: Berth, Gerhard
id: '53'
last_name: Berth
- first_name: Alex
full_name: Widhalm, Alex
last_name: Widhalm
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
citation:
ama: 'Frers T, Hett T, Hilleringmann U, Berth G, Widhalm A, Zrenner A. Characterization
of SiON integrated waveguides via FTIR and AFM measurements. In: 2011 Semiconductor
Conference Dresden. IEEE; 2011. doi:10.1109/scd.2011.6068744'
apa: 'Frers, T., Hett, T., Hilleringmann, U., Berth, G., Widhalm, A., & Zrenner,
A. (2011). Characterization of SiON integrated waveguides via FTIR and AFM measurements.
In 2011 Semiconductor Conference Dresden. Dresden, Germany: IEEE. https://doi.org/10.1109/scd.2011.6068744'
bibtex: '@inproceedings{Frers_Hett_Hilleringmann_Berth_Widhalm_Zrenner_2011, title={Characterization
of SiON integrated waveguides via FTIR and AFM measurements}, DOI={10.1109/scd.2011.6068744},
booktitle={2011 Semiconductor Conference Dresden}, publisher={IEEE}, author={Frers,
Torsten and Hett, Thomas and Hilleringmann, Ulrich and Berth, Gerhard and Widhalm,
Alex and Zrenner, Artur}, year={2011} }'
chicago: Frers, Torsten, Thomas Hett, Ulrich Hilleringmann, Gerhard Berth, Alex
Widhalm, and Artur Zrenner. “Characterization of SiON Integrated Waveguides via
FTIR and AFM Measurements.” In 2011 Semiconductor Conference Dresden. IEEE,
2011. https://doi.org/10.1109/scd.2011.6068744.
ieee: T. Frers, T. Hett, U. Hilleringmann, G. Berth, A. Widhalm, and A. Zrenner,
“Characterization of SiON integrated waveguides via FTIR and AFM measurements,”
in 2011 Semiconductor Conference Dresden, Dresden, Germany, 2011.
mla: Frers, Torsten, et al. “Characterization of SiON Integrated Waveguides via
FTIR and AFM Measurements.” 2011 Semiconductor Conference Dresden, IEEE,
2011, doi:10.1109/scd.2011.6068744.
short: 'T. Frers, T. Hett, U. Hilleringmann, G. Berth, A. Widhalm, A. Zrenner, in:
2011 Semiconductor Conference Dresden, IEEE, 2011.'
conference:
end_date: 2011-09-28
location: Dresden, Germany
name: 2011 Semiconductor Conference Dresden
start_date: 2011-09-27
date_created: 2018-09-20T11:44:50Z
date_updated: 2022-01-06T07:01:09Z
department:
- _id: '15'
- _id: '230'
- _id: '35'
doi: 10.1109/scd.2011.6068744
language:
- iso: eng
publication: 2011 Semiconductor Conference Dresden
publication_identifier:
isbn:
- '9781457704314'
publication_status: published
publisher: IEEE
status: public
title: Characterization of SiON integrated waveguides via FTIR and AFM measurements
type: conference
user_id: '49428'
year: '2011'
...
---
_id: '4171'
abstract:
- lang: eng
text: The method involves exciting a quantum system with photons in a polarization
state. Two states of the quantum system are excited with linear horizontal and
vertical polarizations that are orthogonal to each other, where the states exhibit
an energetic gap smaller than energetic bandwidth of photons. The states are assigned
based on the polarizations, where the quantum system is arranged in a superposition
state. The quantum system is formed by a quantum bit that is formed as a two-level
system.
- lang: eng
text: Die Erfindung betrifft ein Verfahren zur Übertragung des Polarisationszustandes
von Photonen in ein stationäres System, bei dem mit Photonen eines Polarisationszustandes
ein Quanten-System angeregt wird, das zwei Zustände aufweist, die mit zueinander
orthogonalen Polarisationen anregbar sind und deren energetischer Abstand kleiner
ist als die energetische Bandbreite der Photonen, wobei beide Zustände in Abhängigkeit
von der Polarisation besetzt werden und das Quantensystem einen Superpositionszustand
beider Zustände einnimmt.
application_date: 2010-05-18
application_number: '102010020817'
author:
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: D.
full_name: Mantei, D.
last_name: Mantei
- first_name: 'S. Michaelis '
full_name: 'de Vasconcellos, S. Michaelis '
last_name: de Vasconcellos
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
citation:
ama: Förstner J, Mantei D, de Vasconcellos SM, Zrenner A. Method for transmission
of information about polarization state of photons to stationary system. 2011.
apa: Förstner, J., Mantei, D., de Vasconcellos, S. M., & Zrenner, A. (2011).
Method for transmission of information about polarization state of photons to
stationary system.
bibtex: '@article{Förstner_Mantei_de Vasconcellos_Zrenner_2011, title={Method for
transmission of information about polarization state of photons to stationary
system}, author={Förstner, Jens and Mantei, D. and de Vasconcellos, S. Michaelis and
Zrenner, Artur}, year={2011} }'
chicago: Förstner, Jens, D. Mantei, S. Michaelis de Vasconcellos, and Artur Zrenner.
“Method for Transmission of Information about Polarization State of Photons to
Stationary System,” 2011.
ieee: J. Förstner, D. Mantei, S. M. de Vasconcellos, and A. Zrenner, “Method for
transmission of information about polarization state of photons to stationary
system.” 2011.
mla: Förstner, Jens, et al. Method for Transmission of Information about Polarization
State of Photons to Stationary System. 2011.
short: J. Förstner, D. Mantei, S.M. de Vasconcellos, A. Zrenner, (2011).
date_created: 2018-08-28T08:46:40Z
date_updated: 2022-01-06T07:00:28Z
department:
- _id: '15'
- _id: '290'
ipc: G01J 4/00
ipn: DE102010020817A1
keyword:
- tet_topic_qd
main_file_link:
- url: https://patents.google.com/patent/DE102010020817A1/en
publication_date: 2011-11-24
status: public
title: Method for transmission of information about polarization state of photons
to stationary system
type: patent
user_id: '158'
year: '2011'
...
---
_id: '4377'
abstract:
- lang: eng
text: Confocal Raman spectroscopy was performed as an archetype imaging method to
study the ferroelectric domain structure of periodically poled lithium niobate.
More precisely, the linkage out of spatial resolution and spectral information
proved itself as very useful. Here a specific modulation of the Raman lines by
the local variation of polarity and a non-symmetric measuring-signal across the
domain structure were found, which allows for imaging of domain boundaries as
well as oppositely orientated domains. The high potential of this method is demonstrated
by the visualization of the ferroelectric domain structures based on various phonon
modes.
article_type: original
author:
- first_name: Gerhard
full_name: Berth, Gerhard
id: '53'
last_name: Berth
- first_name: Wjatscheslaw
full_name: Hahn, Wjatscheslaw
last_name: Hahn
- first_name: Volker
full_name: Wiedemeier, Volker
last_name: Wiedemeier
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: Simone
full_name: Sanna, Simone
last_name: Sanna
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
last_name: Schmidt
citation:
ama: Berth G, Hahn W, Wiedemeier V, Zrenner A, Sanna S, Schmidt WG. Imaging of the
Ferroelectric Domain Structures by Confocal Raman Spectroscopy. Ferroelectrics.
2011;420(1):44-48. doi:10.1080/00150193.2011.594774
apa: Berth, G., Hahn, W., Wiedemeier, V., Zrenner, A., Sanna, S., & Schmidt,
W. G. (2011). Imaging of the Ferroelectric Domain Structures by Confocal Raman
Spectroscopy. Ferroelectrics, 420(1), 44–48. https://doi.org/10.1080/00150193.2011.594774
bibtex: '@article{Berth_Hahn_Wiedemeier_Zrenner_Sanna_Schmidt_2011, title={Imaging
of the Ferroelectric Domain Structures by Confocal Raman Spectroscopy}, volume={420},
DOI={10.1080/00150193.2011.594774},
number={1}, journal={Ferroelectrics}, publisher={Informa UK Limited}, author={Berth,
Gerhard and Hahn, Wjatscheslaw and Wiedemeier, Volker and Zrenner, Artur and Sanna,
Simone and Schmidt, Wolf Gero}, year={2011}, pages={44–48} }'
chicago: 'Berth, Gerhard, Wjatscheslaw Hahn, Volker Wiedemeier, Artur Zrenner, Simone
Sanna, and Wolf Gero Schmidt. “Imaging of the Ferroelectric Domain Structures
by Confocal Raman Spectroscopy.” Ferroelectrics 420, no. 1 (2011): 44–48.
https://doi.org/10.1080/00150193.2011.594774.'
ieee: G. Berth, W. Hahn, V. Wiedemeier, A. Zrenner, S. Sanna, and W. G. Schmidt,
“Imaging of the Ferroelectric Domain Structures by Confocal Raman Spectroscopy,”
Ferroelectrics, vol. 420, no. 1, pp. 44–48, 2011.
mla: Berth, Gerhard, et al. “Imaging of the Ferroelectric Domain Structures by Confocal
Raman Spectroscopy.” Ferroelectrics, vol. 420, no. 1, Informa UK Limited,
2011, pp. 44–48, doi:10.1080/00150193.2011.594774.
short: G. Berth, W. Hahn, V. Wiedemeier, A. Zrenner, S. Sanna, W.G. Schmidt, Ferroelectrics
420 (2011) 44–48.
date_created: 2018-09-11T14:10:35Z
date_updated: 2022-01-06T07:01:00Z
department:
- _id: '15'
- _id: '230'
- _id: '35'
doi: 10.1080/00150193.2011.594774
intvolume: ' 420'
issue: '1'
keyword:
- Raman spectroscopy
- ferroelectric domains
- LiNbO3
- confocal imaging
language:
- iso: eng
page: 44-48
publication: Ferroelectrics
publication_identifier:
issn:
- 0015-0193
- 1563-5112
publication_status: published
publisher: Informa UK Limited
status: public
title: Imaging of the Ferroelectric Domain Structures by Confocal Raman Spectroscopy
type: journal_article
user_id: '49428'
volume: 420
year: '2011'
...
---
_id: '4378'
abstract:
- lang: eng
text: Using a combined all-ultra-high-vacuum process employing lateral patterning
with focused ion beams and molecular beam epitaxy, site-selective growth of single
(In,Ga)As quantum dots is achieved. We have embedded such a layer of intentionally
positioned quantum dots in the intrinsic region of a p-i-n junction so that the
quantum dots can be driven electrically. In this contribution, we will present
our results on the morphological properties of the ion-beam modified surface on
which the quantum dot nucleation occurs together with a characterization of the
electrical and optoelectronic properties. We will demonstrate that a single, individual
quantum dot can directly be electrically addressed.
article_type: original
author:
- first_name: Minisha
full_name: Mehta, Minisha
last_name: Mehta
- first_name: Dirk
full_name: Reuter, Dirk
id: '37763'
last_name: Reuter
- first_name: Andreas D.
full_name: Wieck, Andreas D.
last_name: Wieck
- first_name: Steffen
full_name: Michaelis de Vasconcellos, Steffen
last_name: Michaelis de Vasconcellos
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
citation:
ama: Mehta M, Reuter D, Wieck AD, Michaelis de Vasconcellos S, Zrenner A, Meier
C. Electrically driven intentionally positioned single quantum dot. physica
status solidi (c). 2011;8(4):1182-1185. doi:10.1002/pssc.201000828
apa: Mehta, M., Reuter, D., Wieck, A. D., Michaelis de Vasconcellos, S., Zrenner,
A., & Meier, C. (2011). Electrically driven intentionally positioned single
quantum dot. Physica Status Solidi (C), 8(4), 1182–1185. https://doi.org/10.1002/pssc.201000828
bibtex: '@article{Mehta_Reuter_Wieck_Michaelis de Vasconcellos_Zrenner_Meier_2011,
title={Electrically driven intentionally positioned single quantum dot}, volume={8},
DOI={10.1002/pssc.201000828},
number={4}, journal={physica status solidi (c)}, publisher={Wiley}, author={Mehta,
Minisha and Reuter, Dirk and Wieck, Andreas D. and Michaelis de Vasconcellos,
Steffen and Zrenner, Artur and Meier, Cedrik}, year={2011}, pages={1182–1185}
}'
chicago: 'Mehta, Minisha, Dirk Reuter, Andreas D. Wieck, Steffen Michaelis de Vasconcellos,
Artur Zrenner, and Cedrik Meier. “Electrically Driven Intentionally Positioned
Single Quantum Dot.” Physica Status Solidi (C) 8, no. 4 (2011): 1182–85.
https://doi.org/10.1002/pssc.201000828.'
ieee: M. Mehta, D. Reuter, A. D. Wieck, S. Michaelis de Vasconcellos, A. Zrenner,
and C. Meier, “Electrically driven intentionally positioned single quantum dot,”
physica status solidi (c), vol. 8, no. 4, pp. 1182–1185, 2011.
mla: Mehta, Minisha, et al. “Electrically Driven Intentionally Positioned Single
Quantum Dot.” Physica Status Solidi (C), vol. 8, no. 4, Wiley, 2011, pp.
1182–85, doi:10.1002/pssc.201000828.
short: M. Mehta, D. Reuter, A.D. Wieck, S. Michaelis de Vasconcellos, A. Zrenner,
C. Meier, Physica Status Solidi (C) 8 (2011) 1182–1185.
date_created: 2018-09-11T14:15:28Z
date_updated: 2022-01-06T07:01:00Z
department:
- _id: '15'
- _id: '230'
- _id: '35'
- _id: '287'
doi: 10.1002/pssc.201000828
intvolume: ' 8'
issue: '4'
keyword:
- molecular beam epitaxy
- quantum dot
- site control
- electroluminescence
language:
- iso: eng
page: 1182-1185
publication: physica status solidi (c)
publication_identifier:
issn:
- 1862-6351
publication_status: published
publisher: Wiley
status: public
title: Electrically driven intentionally positioned single quantum dot
type: journal_article
user_id: '20798'
volume: 8
year: '2011'
...
---
_id: '4379'
abstract:
- lang: eng
text: Uniform mesoporous Si double layers are formed on 4 inch p-type < 100> wafers
with an off orientation of 6º towards < 111> by means of electrochemical etching
in ethanoic-based HF electrolytes. These substrates are of interest for the epitaxial
growth of III–V compound semiconductor stacks on their top for the production
of multi-junction solar cells and very thin electronic devices. We demonstrate
transfer of porous layers after an annealing process in hydrogen atmosphere. Electron
Back-Scatter Diffraction analysis confirms that the substrate orientation is conserved
during the etching and annealing steps. Confocal μ-Raman spectroscopy analysis
shows a decrease in the Raman signal intensity after etching and a subsequent
increase after annealing while no shift is observed. By means of Atomic Force
Microscopy, analysis the surface appearance after the etching and annealing steps
can be visualized. The mean surface roughness varies during the process from 0.55
nm for the unprocessed wafers to 0.27 nm after etching and 0.78 nm after annealing.
The decrease of average roughness after etching is caused by an electropolishing
step prior to porous formation. Despite of slight increase of mean surface roughness
after annealing the samples are still appropriate for high quality epitaxial growth
and subsequent lift-off.
article_type: original
author:
- first_name: E.
full_name: Garralaga Rojas, E.
last_name: Garralaga Rojas
- first_name: B.
full_name: Terheiden, B.
last_name: Terheiden
- first_name: H.
full_name: Plagwitz, H.
last_name: Plagwitz
- first_name: J.
full_name: Hensen, J.
last_name: Hensen
- first_name: V.
full_name: Wiedemeier, V.
last_name: Wiedemeier
- first_name: Gerhard
full_name: Berth, Gerhard
id: '53'
last_name: Berth
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: R.
full_name: Brendel, R.
last_name: Brendel
citation:
ama: Garralaga Rojas E, Terheiden B, Plagwitz H, et al. Lift-off of mesoporous layers
by electrochemical etching on Si (100) substrates with miscut of 6° off towards
(111). Thin Solid Films. 2011;520(1):606-609. doi:10.1016/j.tsf.2011.07.063
apa: Garralaga Rojas, E., Terheiden, B., Plagwitz, H., Hensen, J., Wiedemeier, V.,
Berth, G., … Brendel, R. (2011). Lift-off of mesoporous layers by electrochemical
etching on Si (100) substrates with miscut of 6° off towards (111). Thin Solid
Films, 520(1), 606–609. https://doi.org/10.1016/j.tsf.2011.07.063
bibtex: '@article{Garralaga Rojas_Terheiden_Plagwitz_Hensen_Wiedemeier_Berth_Zrenner_Brendel_2011,
title={Lift-off of mesoporous layers by electrochemical etching on Si (100) substrates
with miscut of 6° off towards (111)}, volume={520}, DOI={10.1016/j.tsf.2011.07.063},
number={1}, journal={Thin Solid Films}, publisher={Elsevier BV}, author={Garralaga
Rojas, E. and Terheiden, B. and Plagwitz, H. and Hensen, J. and Wiedemeier, V.
and Berth, Gerhard and Zrenner, Artur and Brendel, R.}, year={2011}, pages={606–609}
}'
chicago: 'Garralaga Rojas, E., B. Terheiden, H. Plagwitz, J. Hensen, V. Wiedemeier,
Gerhard Berth, Artur Zrenner, and R. Brendel. “Lift-off of Mesoporous Layers by
Electrochemical Etching on Si (100) Substrates with Miscut of 6° off towards (111).”
Thin Solid Films 520, no. 1 (2011): 606–9. https://doi.org/10.1016/j.tsf.2011.07.063.'
ieee: E. Garralaga Rojas et al., “Lift-off of mesoporous layers by electrochemical
etching on Si (100) substrates with miscut of 6° off towards (111),” Thin Solid
Films, vol. 520, no. 1, pp. 606–609, 2011.
mla: Garralaga Rojas, E., et al. “Lift-off of Mesoporous Layers by Electrochemical
Etching on Si (100) Substrates with Miscut of 6° off towards (111).” Thin Solid
Films, vol. 520, no. 1, Elsevier BV, 2011, pp. 606–09, doi:10.1016/j.tsf.2011.07.063.
short: E. Garralaga Rojas, B. Terheiden, H. Plagwitz, J. Hensen, V. Wiedemeier,
G. Berth, A. Zrenner, R. Brendel, Thin Solid Films 520 (2011) 606–609.
date_created: 2018-09-11T14:21:12Z
date_updated: 2022-01-06T07:01:00Z
department:
- _id: '15'
- _id: '230'
- _id: '35'
doi: 10.1016/j.tsf.2011.07.063
intvolume: ' 520'
issue: '1'
keyword:
- Porous Si
- Layer transfer
- Thin-film
- Photovoltaics
language:
- iso: eng
page: 606-609
publication: Thin Solid Films
publication_identifier:
issn:
- 0040-6090
publication_status: published
publisher: Elsevier BV
status: public
title: Lift-off of mesoporous layers by electrochemical etching on Si (100) substrates
with miscut of 6° off towards (111)
type: journal_article
user_id: '49428'
volume: 520
year: '2011'
...
---
_id: '13561'
author:
- first_name: Gerhard
full_name: Berth, Gerhard
id: '53'
last_name: Berth
- first_name: Wjatscheslaw
full_name: Hahn, Wjatscheslaw
last_name: Hahn
- first_name: Volker
full_name: Wiedemeier, Volker
last_name: Wiedemeier
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: Simone
full_name: Sanna, Simone
last_name: Sanna
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
id: '468'
last_name: Schmidt
orcid: 0000-0002-2717-5076
citation:
ama: Berth G, Hahn W, Wiedemeier V, Zrenner A, Sanna S, Schmidt WG. Imaging of the
Ferroelectric Domain Structures by Confocal Raman Spectroscopy. Ferroelectrics.
2011;420:44-48. doi:10.1080/00150193.2011.594774
apa: Berth, G., Hahn, W., Wiedemeier, V., Zrenner, A., Sanna, S., & Schmidt,
W. G. (2011). Imaging of the Ferroelectric Domain Structures by Confocal Raman
Spectroscopy. Ferroelectrics, 420, 44–48. https://doi.org/10.1080/00150193.2011.594774
bibtex: '@article{Berth_Hahn_Wiedemeier_Zrenner_Sanna_Schmidt_2011, title={Imaging
of the Ferroelectric Domain Structures by Confocal Raman Spectroscopy}, volume={420},
DOI={10.1080/00150193.2011.594774},
journal={Ferroelectrics}, author={Berth, Gerhard and Hahn, Wjatscheslaw and Wiedemeier,
Volker and Zrenner, Artur and Sanna, Simone and Schmidt, Wolf Gero}, year={2011},
pages={44–48} }'
chicago: 'Berth, Gerhard, Wjatscheslaw Hahn, Volker Wiedemeier, Artur Zrenner, Simone
Sanna, and Wolf Gero Schmidt. “Imaging of the Ferroelectric Domain Structures
by Confocal Raman Spectroscopy.” Ferroelectrics 420 (2011): 44–48. https://doi.org/10.1080/00150193.2011.594774.'
ieee: 'G. Berth, W. Hahn, V. Wiedemeier, A. Zrenner, S. Sanna, and W. G. Schmidt,
“Imaging of the Ferroelectric Domain Structures by Confocal Raman Spectroscopy,”
Ferroelectrics, vol. 420, pp. 44–48, 2011, doi: 10.1080/00150193.2011.594774.'
mla: Berth, Gerhard, et al. “Imaging of the Ferroelectric Domain Structures by Confocal
Raman Spectroscopy.” Ferroelectrics, vol. 420, 2011, pp. 44–48, doi:10.1080/00150193.2011.594774.
short: G. Berth, W. Hahn, V. Wiedemeier, A. Zrenner, S. Sanna, W.G. Schmidt, Ferroelectrics
420 (2011) 44–48.
date_created: 2019-10-01T08:48:15Z
date_updated: 2025-12-05T10:43:51Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '290'
- _id: '35'
- _id: '230'
doi: 10.1080/00150193.2011.594774
funded_apc: '1'
intvolume: ' 420'
language:
- iso: eng
page: 44-48
publication: Ferroelectrics
publication_identifier:
issn:
- 0015-0193
- 1563-5112
publication_status: published
status: public
title: Imaging of the Ferroelectric Domain Structures by Confocal Raman Spectroscopy
type: journal_article
user_id: '16199'
volume: 420
year: '2011'
...
---
_id: '13823'
author:
- first_name: S.
full_name: Sanna, S.
last_name: Sanna
- first_name: Gerhard
full_name: Berth, Gerhard
id: '53'
last_name: Berth
- first_name: W.
full_name: Hahn, W.
last_name: Hahn
- first_name: A.
full_name: Widhalm, A.
last_name: Widhalm
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
id: '468'
last_name: Schmidt
orcid: 0000-0002-2717-5076
citation:
ama: Sanna S, Berth G, Hahn W, Widhalm A, Zrenner A, Schmidt WG. Vibrational properties
of the LiNbO3 z-surfaces. IEEE Transactions on Ultrasonics, Ferroelectrics
and Frequency Control. 2011;58(9):1751-1756. doi:10.1109/tuffc.2011.2012
apa: Sanna, S., Berth, G., Hahn, W., Widhalm, A., Zrenner, A., & Schmidt, W.
G. (2011). Vibrational properties of the LiNbO3 z-surfaces. IEEE Transactions
on Ultrasonics, Ferroelectrics and Frequency Control, 58(9), 1751–1756.
https://doi.org/10.1109/tuffc.2011.2012
bibtex: '@article{Sanna_Berth_Hahn_Widhalm_Zrenner_Schmidt_2011, title={Vibrational
properties of the LiNbO3 z-surfaces}, volume={58}, DOI={10.1109/tuffc.2011.2012},
number={9}, journal={IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency
Control}, author={Sanna, S. and Berth, Gerhard and Hahn, W. and Widhalm, A. and
Zrenner, Artur and Schmidt, Wolf Gero}, year={2011}, pages={1751–1756} }'
chicago: 'Sanna, S., Gerhard Berth, W. Hahn, A. Widhalm, Artur Zrenner, and Wolf
Gero Schmidt. “Vibrational Properties of the LiNbO3 Z-Surfaces.” IEEE Transactions
on Ultrasonics, Ferroelectrics and Frequency Control 58, no. 9 (2011): 1751–56.
https://doi.org/10.1109/tuffc.2011.2012.'
ieee: 'S. Sanna, G. Berth, W. Hahn, A. Widhalm, A. Zrenner, and W. G. Schmidt, “Vibrational
properties of the LiNbO3 z-surfaces,” IEEE Transactions on Ultrasonics, Ferroelectrics
and Frequency Control, vol. 58, no. 9, pp. 1751–1756, 2011, doi: 10.1109/tuffc.2011.2012.'
mla: Sanna, S., et al. “Vibrational Properties of the LiNbO3 Z-Surfaces.” IEEE
Transactions on Ultrasonics, Ferroelectrics and Frequency Control, vol. 58,
no. 9, 2011, pp. 1751–56, doi:10.1109/tuffc.2011.2012.
short: S. Sanna, G. Berth, W. Hahn, A. Widhalm, A. Zrenner, W.G. Schmidt, IEEE Transactions
on Ultrasonics, Ferroelectrics and Frequency Control 58 (2011) 1751–1756.
date_created: 2019-10-15T07:12:33Z
date_updated: 2025-12-16T07:51:55Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '35'
- _id: '290'
- _id: '230'
- _id: '27'
doi: 10.1109/tuffc.2011.2012
funded_apc: '1'
intvolume: ' 58'
issue: '9'
language:
- iso: eng
page: 1751-1756
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
publication_identifier:
issn:
- 0885-3010
publication_status: published
status: public
title: Vibrational properties of the LiNbO3 z-surfaces
type: journal_article
user_id: '16199'
volume: 58
year: '2011'
...
---
_id: '4040'
abstract:
- lang: eng
text: We numerically investigate the interaction dynamics of coupled cavities in
planar photonic crystal slabs in different configurations. The single cavity is
optimized for a long lifetime of the fundamental mode, reaching a Q-factor of
≈43, 000 using the method of gentle confinement. For pairs of cavities we consider
several configurations and present a setup with strongest coupling observable
as a line splitting of about 30 nm. Based on this configuration, setups with three
cavities are investigated.
article_type: original
author:
- first_name: S.
full_name: Declair, S.
last_name: Declair
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Declair S, Meier T, Zrenner A, Förstner J. Numerical analysis of coupled photonic
crystal cavities. Photonics and Nanostructures - Fundamentals and Applications.
2011;9(4):345-350. doi:10.1016/j.photonics.2011.04.012
apa: Declair, S., Meier, T., Zrenner, A., & Förstner, J. (2011). Numerical analysis
of coupled photonic crystal cavities. Photonics and Nanostructures - Fundamentals
and Applications, 9(4), 345–350. https://doi.org/10.1016/j.photonics.2011.04.012
bibtex: '@article{Declair_Meier_Zrenner_Förstner_2011, title={Numerical analysis
of coupled photonic crystal cavities}, volume={9}, DOI={10.1016/j.photonics.2011.04.012},
number={4}, journal={Photonics and Nanostructures - Fundamentals and Applications},
publisher={Elsevier BV}, author={Declair, S. and Meier, Torsten and Zrenner, Artur
and Förstner, Jens}, year={2011}, pages={345–350} }'
chicago: 'Declair, S., Torsten Meier, Artur Zrenner, and Jens Förstner. “Numerical
Analysis of Coupled Photonic Crystal Cavities.” Photonics and Nanostructures
- Fundamentals and Applications 9, no. 4 (2011): 345–50. https://doi.org/10.1016/j.photonics.2011.04.012.'
ieee: 'S. Declair, T. Meier, A. Zrenner, and J. Förstner, “Numerical analysis of
coupled photonic crystal cavities,” Photonics and Nanostructures - Fundamentals
and Applications, vol. 9, no. 4, pp. 345–350, 2011, doi: 10.1016/j.photonics.2011.04.012.'
mla: Declair, S., et al. “Numerical Analysis of Coupled Photonic Crystal Cavities.”
Photonics and Nanostructures - Fundamentals and Applications, vol. 9, no.
4, Elsevier BV, 2011, pp. 345–50, doi:10.1016/j.photonics.2011.04.012.
short: S. Declair, T. Meier, A. Zrenner, J. Förstner, Photonics and Nanostructures
- Fundamentals and Applications 9 (2011) 345–350.
date_created: 2018-08-22T09:56:30Z
date_updated: 2025-12-16T11:20:45Z
ddc:
- '530'
department:
- _id: '15'
- _id: '290'
- _id: '293'
- _id: '170'
- _id: '230'
- _id: '35'
- _id: '34'
- _id: '61'
doi: 10.1016/j.photonics.2011.04.012
file:
- access_level: closed
content_type: application/pdf
creator: hclaudia
date_created: 2018-08-22T09:58:08Z
date_updated: 2018-08-22T09:58:08Z
file_id: '4041'
file_name: 2011 Declair,Meier,Zrenner,Förstner_Numerical analysis of coupled photonic
crystal cavities.pdf
file_size: 617123
relation: main_file
success: 1
file_date_updated: 2018-08-22T09:58:08Z
has_accepted_license: '1'
intvolume: ' 9'
issue: '4'
keyword:
- tet_topic_phc
language:
- iso: eng
page: 345-350
publication: Photonics and Nanostructures - Fundamentals and Applications
publication_identifier:
issn:
- 1569-4410
publication_status: published
publisher: Elsevier BV
status: public
title: Numerical analysis of coupled photonic crystal cavities
type: journal_article
user_id: '16199'
volume: 9
year: '2011'
...
---
_id: '4543'
abstract:
- lang: eng
text: The vibrational properties of the LiNbO3 (0001) surfaces have been investigated
both from first principles and with Raman spectroscopy measurements. Firstly,
the phonon modes of bulk and of the (0001) surface are calculated by means of
the density functional theory. Our calculations reveal the existence of localised
vibrational modes both at the positive and at the negative surface. The surface
vibrations are found at energies above and within the bulk bands. Phonon modes
localised at the positive and at the negative surface differ substantially. In
a second step, the Raman spectra of LiNbO3 bulk and of the two surfaces have been
measured. Raman spectroscopy is shown to be sensitive to differences between bulk
and surface and between positive and negative surface. The calculated and measured
frequencies are in agreement within the error of the method.
article_type: original
author:
- first_name: S.
full_name: Sanna, S.
last_name: Sanna
- first_name: Gerhard
full_name: Berth, Gerhard
id: '53'
last_name: Berth
- first_name: W.
full_name: Hahn, W.
last_name: Hahn
- first_name: A.
full_name: Widhalm, A.
last_name: Widhalm
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
id: '468'
last_name: Schmidt
orcid: 0000-0002-2717-5076
citation:
ama: Sanna S, Berth G, Hahn W, Widhalm A, Zrenner A, Schmidt WG. Localised Phonon
Modes at LiNbO3(0001) Surfaces. Ferroelectrics. 2011;419(1):1-8. doi:10.1080/00150193.2011.594396
apa: Sanna, S., Berth, G., Hahn, W., Widhalm, A., Zrenner, A., & Schmidt, W.
G. (2011). Localised Phonon Modes at LiNbO3(0001) Surfaces. Ferroelectrics,
419(1), 1–8. https://doi.org/10.1080/00150193.2011.594396
bibtex: '@article{Sanna_Berth_Hahn_Widhalm_Zrenner_Schmidt_2011, title={Localised
Phonon Modes at LiNbO3(0001) Surfaces}, volume={419}, DOI={10.1080/00150193.2011.594396},
number={1}, journal={Ferroelectrics}, publisher={Informa UK Limited}, author={Sanna,
S. and Berth, Gerhard and Hahn, W. and Widhalm, A. and Zrenner, Artur and Schmidt,
Wolf Gero}, year={2011}, pages={1–8} }'
chicago: 'Sanna, S., Gerhard Berth, W. Hahn, A. Widhalm, Artur Zrenner, and Wolf
Gero Schmidt. “Localised Phonon Modes at LiNbO3(0001) Surfaces.” Ferroelectrics
419, no. 1 (2011): 1–8. https://doi.org/10.1080/00150193.2011.594396.'
ieee: 'S. Sanna, G. Berth, W. Hahn, A. Widhalm, A. Zrenner, and W. G. Schmidt, “Localised
Phonon Modes at LiNbO3(0001) Surfaces,” Ferroelectrics, vol. 419, no. 1,
pp. 1–8, 2011, doi: 10.1080/00150193.2011.594396.'
mla: Sanna, S., et al. “Localised Phonon Modes at LiNbO3(0001) Surfaces.” Ferroelectrics,
vol. 419, no. 1, Informa UK Limited, 2011, pp. 1–8, doi:10.1080/00150193.2011.594396.
short: S. Sanna, G. Berth, W. Hahn, A. Widhalm, A. Zrenner, W.G. Schmidt, Ferroelectrics
419 (2011) 1–8.
date_created: 2018-09-20T11:26:53Z
date_updated: 2025-12-16T11:29:20Z
department:
- _id: '15'
- _id: '230'
- _id: '35'
- _id: '170'
- _id: '295'
- _id: '35'
- _id: '27'
doi: 10.1080/00150193.2011.594396
intvolume: ' 419'
issue: '1'
language:
- iso: eng
page: 1-8
project:
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Ferroelectrics
publication_identifier:
issn:
- 0015-0193
- 1563-5112
publication_status: published
publisher: Informa UK Limited
status: public
title: Localised Phonon Modes at LiNbO3(0001) Surfaces
type: journal_article
user_id: '16199'
volume: 419
year: '2011'
...
---
_id: '4548'
abstract:
- lang: eng
text: "A fluorescence study of acetonitrile solutions of bis(tetramethylguanidine)propane,
copper(I)-iodide and [Cu(btmgp)I] was performed and the chemical reaction of the
latter species with O2 was investigated at room temperature. The actual quenching
process via O2 gassing was studied and an exponential dependence of the fluorescence
intensity with respect to the complex concentration was observed.\r\nFurthermore
the survey was deepened on time resolved fluorescence properties of solved [Cu(btmgp)I]
in a wider concentration range. The applicability of this complex for O2 sensing
inside a microreactor system was proven by confocal fluorescence measurements.
It was shown that the investigated system can be used for oxygen sensing in the
copper concentration range from 10−2 to 10−9 mol/l."
article_type: original
author:
- first_name: Sonja
full_name: Herres-Pawlis, Sonja
last_name: Herres-Pawlis
- first_name: Gerhard
full_name: Berth, Gerhard
id: '53'
last_name: Berth
- first_name: Volker
full_name: Wiedemeier, Volker
last_name: Wiedemeier
- first_name: Ludger
full_name: Schmidt, Ludger
last_name: Schmidt
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: Hans-Joachim
full_name: Warnecke, Hans-Joachim
last_name: Warnecke
citation:
ama: Herres-Pawlis S, Berth G, Wiedemeier V, Schmidt L, Zrenner A, Warnecke H-J.
Oxygen sensing by fluorescence quenching of [Cu(btmgp)I]. Journal of Luminescence.
2010;130(10):1958-1962. doi:10.1016/j.jlumin.2010.05.012
apa: Herres-Pawlis, S., Berth, G., Wiedemeier, V., Schmidt, L., Zrenner, A., &
Warnecke, H.-J. (2010). Oxygen sensing by fluorescence quenching of [Cu(btmgp)I].
Journal of Luminescence, 130(10), 1958–1962. https://doi.org/10.1016/j.jlumin.2010.05.012
bibtex: '@article{Herres-Pawlis_Berth_Wiedemeier_Schmidt_Zrenner_Warnecke_2010,
title={Oxygen sensing by fluorescence quenching of [Cu(btmgp)I]}, volume={130},
DOI={10.1016/j.jlumin.2010.05.012},
number={10}, journal={Journal of Luminescence}, publisher={Elsevier BV}, author={Herres-Pawlis,
Sonja and Berth, Gerhard and Wiedemeier, Volker and Schmidt, Ludger and Zrenner,
Artur and Warnecke, Hans-Joachim}, year={2010}, pages={1958–1962} }'
chicago: 'Herres-Pawlis, Sonja, Gerhard Berth, Volker Wiedemeier, Ludger Schmidt,
Artur Zrenner, and Hans-Joachim Warnecke. “Oxygen Sensing by Fluorescence Quenching
of [Cu(Btmgp)I].” Journal of Luminescence 130, no. 10 (2010): 1958–62.
https://doi.org/10.1016/j.jlumin.2010.05.012.'
ieee: S. Herres-Pawlis, G. Berth, V. Wiedemeier, L. Schmidt, A. Zrenner, and H.-J.
Warnecke, “Oxygen sensing by fluorescence quenching of [Cu(btmgp)I],” Journal
of Luminescence, vol. 130, no. 10, pp. 1958–1962, 2010.
mla: Herres-Pawlis, Sonja, et al. “Oxygen Sensing by Fluorescence Quenching of [Cu(Btmgp)I].”
Journal of Luminescence, vol. 130, no. 10, Elsevier BV, 2010, pp. 1958–62,
doi:10.1016/j.jlumin.2010.05.012.
short: S. Herres-Pawlis, G. Berth, V. Wiedemeier, L. Schmidt, A. Zrenner, H.-J.
Warnecke, Journal of Luminescence 130 (2010) 1958–1962.
date_created: 2018-09-20T12:31:16Z
date_updated: 2022-01-06T07:01:09Z
department:
- _id: '15'
- _id: '230'
- _id: '35'
doi: 10.1016/j.jlumin.2010.05.012
intvolume: ' 130'
issue: '10'
keyword:
- Copper Oxygen Fluorescence quenching N donor ligands
language:
- iso: eng
page: 1958-1962
publication: Journal of Luminescence
publication_identifier:
issn:
- 0022-2313
publication_status: published
publisher: Elsevier BV
status: public
title: Oxygen sensing by fluorescence quenching of [Cu(btmgp)I]
type: journal_article
user_id: '49428'
volume: 130
year: '2010'
...
---
_id: '4549'
abstract:
- lang: eng
text: Damage caused by laser irradiation on the surface of ZnTe epilayers was studied
by micro-Raman and atomic force microscopy (AFM). ZnTe LO-phonon overtones up
to four order and TO + (n − 1)LO zone-center phonons were observed in the resonant
micro-Raman spectra at room temperature. Discrepancies in the literature regarding
the origin of two features observed at low frequencies around 120 and 140 cm−1
in the Raman spectrum of ZnTe are discussed and resolved. These Raman peaks were
not detected by using a low excitation laser power density on a Zn-terminated
ZnTe surface; however, with the increase of the laser power density they were
found to arise irreversibly. The correspondence of these peaks in a wave number
with the strongest Raman peaks of the crystalline tellurium phase and the intensity
enhancement behavior with the laser power in a similar way as for CdTe strongly
suggests the formation of crystalline tellurium aggregates on the layer surface
due to laser irradiation damage. AFM data reveal the occurrence of laser ablation
on the ZnTe surface even though the surface temperature of the sample is below
the melting point.
article_number: '075003'
article_type: original
author:
- first_name: E M
full_name: Larramendi, E M
last_name: Larramendi
- first_name: Gerhard
full_name: Berth, Gerhard
id: '53'
last_name: Berth
- first_name: V
full_name: Wiedemeier, V
last_name: Wiedemeier
- first_name: K-P
full_name: Hüsch, K-P
last_name: Hüsch
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: U
full_name: Woggon, U
last_name: Woggon
- first_name: E
full_name: Tschumak, E
last_name: Tschumak
- first_name: K
full_name: Lischka, K
last_name: Lischka
- first_name: D
full_name: Schikora, D
last_name: Schikora
citation:
ama: Larramendi EM, Berth G, Wiedemeier V, et al. Intensity enhancement of Te Raman
modes by laser damage in ZnTe epilayers. Semiconductor Science and Technology.
2010;25(7). doi:10.1088/0268-1242/25/7/075003
apa: Larramendi, E. M., Berth, G., Wiedemeier, V., Hüsch, K.-P., Zrenner, A., Woggon,
U., … Schikora, D. (2010). Intensity enhancement of Te Raman modes by laser damage
in ZnTe epilayers. Semiconductor Science and Technology, 25(7).
https://doi.org/10.1088/0268-1242/25/7/075003
bibtex: '@article{Larramendi_Berth_Wiedemeier_Hüsch_Zrenner_Woggon_Tschumak_Lischka_Schikora_2010,
title={Intensity enhancement of Te Raman modes by laser damage in ZnTe epilayers},
volume={25}, DOI={10.1088/0268-1242/25/7/075003},
number={7075003}, journal={Semiconductor Science and Technology}, publisher={IOP
Publishing}, author={Larramendi, E M and Berth, Gerhard and Wiedemeier, V and
Hüsch, K-P and Zrenner, Artur and Woggon, U and Tschumak, E and Lischka, K and
Schikora, D}, year={2010} }'
chicago: Larramendi, E M, Gerhard Berth, V Wiedemeier, K-P Hüsch, Artur Zrenner,
U Woggon, E Tschumak, K Lischka, and D Schikora. “Intensity Enhancement of Te
Raman Modes by Laser Damage in ZnTe Epilayers.” Semiconductor Science and Technology
25, no. 7 (2010). https://doi.org/10.1088/0268-1242/25/7/075003.
ieee: E. M. Larramendi et al., “Intensity enhancement of Te Raman modes by
laser damage in ZnTe epilayers,” Semiconductor Science and Technology,
vol. 25, no. 7, 2010.
mla: Larramendi, E. M., et al. “Intensity Enhancement of Te Raman Modes by Laser
Damage in ZnTe Epilayers.” Semiconductor Science and Technology, vol. 25,
no. 7, 075003, IOP Publishing, 2010, doi:10.1088/0268-1242/25/7/075003.
short: E.M. Larramendi, G. Berth, V. Wiedemeier, K.-P. Hüsch, A. Zrenner, U. Woggon,
E. Tschumak, K. Lischka, D. Schikora, Semiconductor Science and Technology 25
(2010).
date_created: 2018-09-20T12:35:35Z
date_updated: 2022-01-06T07:01:09Z
department:
- _id: '15'
- _id: '230'
- _id: '35'
doi: 10.1088/0268-1242/25/7/075003
intvolume: ' 25'
issue: '7'
language:
- iso: eng
publication: Semiconductor Science and Technology
publication_identifier:
issn:
- 0268-1242
- 1361-6641
publication_status: published
publisher: IOP Publishing
status: public
title: Intensity enhancement of Te Raman modes by laser damage in ZnTe epilayers
type: journal_article
user_id: '49428'
volume: 25
year: '2010'
...
---
_id: '4550'
abstract:
- lang: eng
text: We have integrated individual (In,Ga)As quantum dots (QDs) using site-controlled
molecular beam epitaxial growth into the intrinsic region of a p-i-n junction
diode. This is achieved using an in situ combination of focused ion beam prepatterning,
annealing, and overgrowth, resulting in arrays of individually electrically addressable
(In,Ga)As QDs with full control on the lateral position. Using microelectroluminescence
spectroscopy we demonstrate that these QDs have the same optical quality as optically
pumped Stranski–Krastanov QDs with random nucleation located in proximity to a
doped interface. The results suggest that this technique is scalable and highly
interesting for different applications in quantum devices.
article_number: '143101'
article_type: original
author:
- first_name: M.
full_name: Mehta, M.
last_name: Mehta
- first_name: Dirk
full_name: Reuter, Dirk
id: '37763'
last_name: Reuter
- first_name: A. D.
full_name: Wieck, A. D.
last_name: Wieck
- first_name: S.
full_name: Michaelis de Vasconcellos, S.
last_name: Michaelis de Vasconcellos
- first_name: Artur
full_name: Zrenner, Artur
id: '606'
last_name: Zrenner
orcid: 0000-0002-5190-0944
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
citation:
ama: Mehta M, Reuter D, Wieck AD, Michaelis de Vasconcellos S, Zrenner A, Meier
C. An intentionally positioned (In,Ga)As quantum dot in a micron sized light emitting
diode. Applied Physics Letters. 2010;97(14). doi:10.1063/1.3488812
apa: Mehta, M., Reuter, D., Wieck, A. D., Michaelis de Vasconcellos, S., Zrenner,
A., & Meier, C. (2010). An intentionally positioned (In,Ga)As quantum dot
in a micron sized light emitting diode. Applied Physics Letters, 97(14).
https://doi.org/10.1063/1.3488812
bibtex: '@article{Mehta_Reuter_Wieck_Michaelis de Vasconcellos_Zrenner_Meier_2010,
title={An intentionally positioned (In,Ga)As quantum dot in a micron sized light
emitting diode}, volume={97}, DOI={10.1063/1.3488812},
number={14143101}, journal={Applied Physics Letters}, publisher={AIP Publishing},
author={Mehta, M. and Reuter, Dirk and Wieck, A. D. and Michaelis de Vasconcellos,
S. and Zrenner, Artur and Meier, Cedrik}, year={2010} }'
chicago: Mehta, M., Dirk Reuter, A. D. Wieck, S. Michaelis de Vasconcellos, Artur
Zrenner, and Cedrik Meier. “An Intentionally Positioned (In,Ga)As Quantum Dot
in a Micron Sized Light Emitting Diode.” Applied Physics Letters 97, no.
14 (2010). https://doi.org/10.1063/1.3488812.
ieee: M. Mehta, D. Reuter, A. D. Wieck, S. Michaelis de Vasconcellos, A. Zrenner,
and C. Meier, “An intentionally positioned (In,Ga)As quantum dot in a micron sized
light emitting diode,” Applied Physics Letters, vol. 97, no. 14, 2010.
mla: Mehta, M., et al. “An Intentionally Positioned (In,Ga)As Quantum Dot in a Micron
Sized Light Emitting Diode.” Applied Physics Letters, vol. 97, no. 14,
143101, AIP Publishing, 2010, doi:10.1063/1.3488812.
short: M. Mehta, D. Reuter, A.D. Wieck, S. Michaelis de Vasconcellos, A. Zrenner,
C. Meier, Applied Physics Letters 97 (2010).
date_created: 2018-09-20T12:38:51Z
date_updated: 2022-01-06T07:01:09Z
department:
- _id: '15'
- _id: '230'
- _id: '35'
- _id: '287'
doi: 10.1063/1.3488812
intvolume: ' 97'
issue: '14'
language:
- iso: eng
publication: Applied Physics Letters
publication_identifier:
issn:
- 0003-6951
- 1077-3118
publication_status: published
publisher: AIP Publishing
status: public
title: An intentionally positioned (In,Ga)As quantum dot in a micron sized light emitting
diode
type: journal_article
user_id: '20798'
volume: 97
year: '2010'
...