---
_id: '44277'
abstract:
- lang: eng
text: The appearance of quantum beats (QBs) between heavy-hole (hh) and light-hole
(lh) excitons in GaAs quantum wells (QWs) has been observed in many degenerate-four-
wave-mixing (DFWM) experiments with subpicosecond optical pulses. Although the
variation of the beat amplitude and phase with polarization of the incident pulses
was recognized early on, a consistent theoretical interpretation of exciton coherence
for the case of simultaneous excitation of hh and lh excitons is still missing.
article_number: QFD6
author:
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: J.
full_name: Kuhl, J.
last_name: Kuhl
- first_name: E.J.
full_name: Mayer, E.J.
last_name: Mayer
- first_name: G.O.
full_name: Smith, G.O.
last_name: Smith
- first_name: K.
full_name: Bott, K.
last_name: Bott
- first_name: V.
full_name: Heuckeroth, V.
last_name: Heuckeroth
- first_name: P.
full_name: Thomas, P.
last_name: Thomas
- first_name: M.
full_name: Koch, M.
last_name: Koch
- first_name: R.
full_name: Hey, R.
last_name: Hey
- first_name: K.
full_name: Ploog, K.
last_name: Ploog
citation:
ama: 'Meier T, Kuhl J, Mayer EJ, et al. Polarization dependence of quantum beats
between light-hole and heavy-hole excitons in GaAs quantum wells. In: Quantum
Electronics and Laser Science Conference. Optical Society of America; 1995.'
apa: Meier, T., Kuhl, J., Mayer, E. J., Smith, G. O., Bott, K., Heuckeroth, V.,
Thomas, P., Koch, M., Hey, R., & Ploog, K. (1995). Polarization dependence
of quantum beats between light-hole and heavy-hole excitons in GaAs quantum wells.
Quantum Electronics and Laser Science Conference, Article QFD6. Quantum
Electronics and Laser Science Conference 1995, Baltimore, Maryland United States.
bibtex: '@inproceedings{Meier_Kuhl_Mayer_Smith_Bott_Heuckeroth_Thomas_Koch_Hey_Ploog_1995,
title={Polarization dependence of quantum beats between light-hole and heavy-hole
excitons in GaAs quantum wells}, number={QFD6}, booktitle={Quantum Electronics
and Laser Science Conference}, publisher={Optical Society of America}, author={Meier,
Torsten and Kuhl, J. and Mayer, E.J. and Smith, G.O. and Bott, K. and Heuckeroth,
V. and Thomas, P. and Koch, M. and Hey, R. and Ploog, K.}, year={1995} }'
chicago: Meier, Torsten, J. Kuhl, E.J. Mayer, G.O. Smith, K. Bott, V. Heuckeroth,
P. Thomas, M. Koch, R. Hey, and K. Ploog. “Polarization Dependence of Quantum
Beats between Light-Hole and Heavy-Hole Excitons in GaAs Quantum Wells.” In Quantum
Electronics and Laser Science Conference. Optical Society of America, 1995.
ieee: T. Meier et al., “Polarization dependence of quantum beats between
light-hole and heavy-hole excitons in GaAs quantum wells,” presented at the Quantum
Electronics and Laser Science Conference 1995, Baltimore, Maryland United States,
1995.
mla: Meier, Torsten, et al. “Polarization Dependence of Quantum Beats between Light-Hole
and Heavy-Hole Excitons in GaAs Quantum Wells.” Quantum Electronics and Laser
Science Conference, QFD6, Optical Society of America, 1995.
short: 'T. Meier, J. Kuhl, E.J. Mayer, G.O. Smith, K. Bott, V. Heuckeroth, P. Thomas,
M. Koch, R. Hey, K. Ploog, in: Quantum Electronics and Laser Science Conference,
Optical Society of America, 1995.'
conference:
end_date: 1995-05-26
location: Baltimore, Maryland United States
name: Quantum Electronics and Laser Science Conference 1995
start_date: 1995-05-22
date_created: 2023-05-01T11:11:07Z
date_updated: 2023-05-01T11:11:10Z
department:
- _id: '293'
extern: '1'
language:
- iso: eng
main_file_link:
- url: https://opg.optica.org/abstract.cfm?uri=qels-1995-QFD6
publication: Quantum Electronics and Laser Science Conference
publication_identifier:
isbn:
- 1-55752-402-5
publication_status: published
publisher: Optical Society of America
status: public
title: Polarization dependence of quantum beats between light-hole and heavy-hole
excitons in GaAs quantum wells
type: conference
user_id: '49063'
year: '1995'
...
---
_id: '13800'
author:
- first_name: Clemens
full_name: Kress, Clemens
last_name: Kress
- first_name: Marion
full_name: Fiedler, Marion
last_name: Fiedler
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
id: '468'
last_name: Schmidt
orcid: 0000-0002-2717-5076
- first_name: Friedhelm
full_name: Bechstedt, Friedhelm
last_name: Bechstedt
citation:
ama: Kress C, Fiedler M, Schmidt WG, Bechstedt F. Quasi-particle band structure
of C(111)2 × 1 and C(100)2 × 1 surfaces. Surface Science. 1995;331-333:1152-1156.
doi:10.1016/0039-6028(95)00160-3
apa: Kress, C., Fiedler, M., Schmidt, W. G., & Bechstedt, F. (1995). Quasi-particle
band structure of C(111)2 × 1 and C(100)2 × 1 surfaces. Surface Science,
331–333, 1152–1156. https://doi.org/10.1016/0039-6028(95)00160-3
bibtex: '@article{Kress_Fiedler_Schmidt_Bechstedt_1995, title={Quasi-particle band
structure of C(111)2 × 1 and C(100)2 × 1 surfaces}, volume={331–333}, DOI={10.1016/0039-6028(95)00160-3},
journal={Surface Science}, author={Kress, Clemens and Fiedler, Marion and Schmidt,
Wolf Gero and Bechstedt, Friedhelm}, year={1995}, pages={1152–1156} }'
chicago: 'Kress, Clemens, Marion Fiedler, Wolf Gero Schmidt, and Friedhelm Bechstedt.
“Quasi-Particle Band Structure of C(111)2 × 1 and C(100)2 × 1 Surfaces.” Surface
Science 331–333 (1995): 1152–56. https://doi.org/10.1016/0039-6028(95)00160-3.'
ieee: 'C. Kress, M. Fiedler, W. G. Schmidt, and F. Bechstedt, “Quasi-particle band
structure of C(111)2 × 1 and C(100)2 × 1 surfaces,” Surface Science, vol.
331–333, pp. 1152–1156, 1995, doi: 10.1016/0039-6028(95)00160-3.'
mla: Kress, Clemens, et al. “Quasi-Particle Band Structure of C(111)2 × 1 and C(100)2
× 1 Surfaces.” Surface Science, vol. 331–333, 1995, pp. 1152–56, doi:10.1016/0039-6028(95)00160-3.
short: C. Kress, M. Fiedler, W.G. Schmidt, F. Bechstedt, Surface Science 331–333
(1995) 1152–1156.
date_created: 2019-10-10T16:32:35Z
date_updated: 2025-12-16T07:40:13Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '35'
- _id: '230'
doi: 10.1016/0039-6028(95)00160-3
funded_apc: '1'
language:
- iso: eng
page: 1152-1156
publication: Surface Science
publication_identifier:
issn:
- 0039-6028
publication_status: published
status: public
title: Quasi-particle band structure of C(111)2 × 1 and C(100)2 × 1 surfaces
type: journal_article
user_id: '16199'
volume: 331-333
year: '1995'
...
---
_id: '13801'
author:
- first_name: Wolf Gero
full_name: Schmidt, Wolf Gero
id: '468'
last_name: Schmidt
orcid: 0000-0002-2717-5076
- first_name: G.P.
full_name: Srivastava, G.P.
last_name: Srivastava
citation:
ama: 'Schmidt WG, Srivastava GP. III-V(110)/Sb(1 ML): structural and dynamical properties.
Surface Science. 1995;331-333(Part A):540-545. doi:10.1016/0039-6028(95)00304-5'
apa: 'Schmidt, W. G., & Srivastava, G. P. (1995). III-V(110)/Sb(1 ML): structural
and dynamical properties. Surface Science, 331–333(Part A), 540–545.
https://doi.org/10.1016/0039-6028(95)00304-5'
bibtex: '@article{Schmidt_Srivastava_1995, title={III-V(110)/Sb(1 ML): structural
and dynamical properties}, volume={331–333}, DOI={10.1016/0039-6028(95)00304-5},
number={Part A}, journal={Surface Science}, author={Schmidt, Wolf Gero and Srivastava,
G.P.}, year={1995}, pages={540–545} }'
chicago: 'Schmidt, Wolf Gero, and G.P. Srivastava. “III-V(110)/Sb(1 ML): Structural
and Dynamical Properties.” Surface Science 331–333, no. Part A (1995):
540–45. https://doi.org/10.1016/0039-6028(95)00304-5.'
ieee: 'W. G. Schmidt and G. P. Srivastava, “III-V(110)/Sb(1 ML): structural and
dynamical properties,” Surface Science, vol. 331–333, no. Part A, pp. 540–545,
1995, doi: 10.1016/0039-6028(95)00304-5.'
mla: 'Schmidt, Wolf Gero, and G. P. Srivastava. “III-V(110)/Sb(1 ML): Structural
and Dynamical Properties.” Surface Science, vol. 331–333, no. Part A, 1995,
pp. 540–45, doi:10.1016/0039-6028(95)00304-5.'
short: W.G. Schmidt, G.P. Srivastava, Surface Science 331–333 (1995) 540–545.
date_created: 2019-10-10T16:34:12Z
date_updated: 2025-12-16T07:39:35Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '35'
- _id: '230'
doi: 10.1016/0039-6028(95)00304-5
funded_apc: '1'
issue: Part A
language:
- iso: eng
page: 540-545
publication: Surface Science
publication_identifier:
issn:
- 0039-6028
publication_status: published
status: public
title: 'III-V(110)/Sb(1 ML): structural and dynamical properties'
type: journal_article
user_id: '16199'
volume: 331-333
year: '1995'
...
---
_id: '3264'
author:
- first_name: Heike
full_name: Wehrheim, Heike
id: '573'
last_name: Wehrheim
citation:
ama: 'Wehrheim H. Parametric Action Refinement. In: Olderog E-}R{\"{u}}diger, ed.
Programming Concepts, Methods and Calculi, Proceedings of the {IFIP} {TC2/WG2.1/WG2.2/WG2.3}
Working Conference on Programming Concepts, Methods and Calculi {(PROCOMET} ’94)
San Miniato, Italy, 6-10 June, 1994. {IFIP} Transactions. ; 1994:247--266.'
apa: Wehrheim, H. (1994). Parametric Action Refinement. In E.-}R{\"{u}}diger Olderog
(Ed.), Programming Concepts, Methods and Calculi, Proceedings of the {IFIP}
{TC2/WG2.1/WG2.2/WG2.3} Working Conference on Programming Concepts, Methods and
Calculi {(PROCOMET} ’94) San Miniato, Italy, 6-10 June, 1994 (pp. 247--266).
bibtex: '@inproceedings{Wehrheim_1994, series={{IFIP} Transactions}, title={Parametric
Action Refinement}, booktitle={Programming Concepts, Methods and Calculi, Proceedings
of the {IFIP} {TC2/WG2.1/WG2.2/WG2.3} Working Conference on Programming Concepts,
Methods and Calculi {(PROCOMET} ’94) San Miniato, Italy, 6-10 June, 1994}, author={Wehrheim,
Heike}, editor={Olderog, Ernst{-}R{\"{u}}digerEditor}, year={1994}, pages={247--266},
collection={{IFIP} Transactions} }'
chicago: Wehrheim, Heike. “Parametric Action Refinement.” In Programming Concepts,
Methods and Calculi, Proceedings of the {IFIP} {TC2/WG2.1/WG2.2/WG2.3} Working
Conference on Programming Concepts, Methods and Calculi {(PROCOMET} ’94) San Miniato,
Italy, 6-10 June, 1994, edited by Ernst{-}R{\"{u}}diger Olderog, 247--266.
{IFIP} Transactions, 1994.
ieee: H. Wehrheim, “Parametric Action Refinement,” in Programming Concepts, Methods
and Calculi, Proceedings of the {IFIP} {TC2/WG2.1/WG2.2/WG2.3} Working Conference
on Programming Concepts, Methods and Calculi {(PROCOMET} ’94) San Miniato, Italy,
6-10 June, 1994, 1994, pp. 247--266.
mla: Wehrheim, Heike. “Parametric Action Refinement.” Programming Concepts, Methods
and Calculi, Proceedings of the {IFIP} {TC2/WG2.1/WG2.2/WG2.3} Working Conference
on Programming Concepts, Methods and Calculi {(PROCOMET} ’94) San Miniato, Italy,
6-10 June, 1994, edited by Ernst{-}R{\"{u}}diger Olderog, 1994, pp. 247--266.
short: 'H. Wehrheim, in: E.-}R{\"{u}}diger Olderog (Ed.), Programming Concepts,
Methods and Calculi, Proceedings of the {IFIP} {TC2/WG2.1/WG2.2/WG2.3} Working
Conference on Programming Concepts, Methods and Calculi {(PROCOMET} ’94) San Miniato,
Italy, 6-10 June, 1994, 1994, pp. 247--266.'
date_created: 2018-06-14T07:55:40Z
date_updated: 2022-01-06T06:59:07Z
department:
- _id: '77'
editor:
- first_name: Ernst{-}R{\"{u}}diger
full_name: Olderog, Ernst{-}R{\"{u}}diger
last_name: Olderog
page: 247--266
publication: Programming Concepts, Methods and Calculi, Proceedings of the {IFIP}
{TC2/WG2.1/WG2.2/WG2.3} Working Conference on Programming Concepts, Methods and
Calculi {(PROCOMET} '94) San Miniato, Italy, 6-10 June, 1994
series_title: '{IFIP} Transactions'
status: public
title: Parametric Action Refinement
type: conference
user_id: '29719'
year: '1994'
...
---
_id: '7827'
abstract:
- lang: ger
text: Die Pilotphase 1993/ 94 zum Aufbau eines Niedersächsischen Krebsregister untersucht
das im Entwurf des Bundeskrebsregistergesetzes vorgesehen Modell für ein bevölkerungsbezogenes
Krebsregister. Darin werden die Krebsmeldungen in einer Vertrauensstelle erfaßt
und die personenidentifizierenden Daten vor der Übermittlung an die Registerstelle
anonymisiert, wo sie dann zu einem bevölkerungsbezogenen Krebsregister verdichtet
und epidemiologischer Forschung zur Verfügung gestellt werden ([1], [2], [3]).
Dieses sogenannte „Michaelis“-Modell erlaubt eine bevölkerungsbezogene Registrierung
von Krebsfällen unter Berücksichtigung datenschutzrechtlicher Aspekte („Informationelles
Selbstbestimmungsrecht“) der einzelnen Betroffenen. In vier Teilprojekten werden
dabei in der Modellregion Weser-Ems die Integration krebsregistrierender Einrichtungen,
die Chiffrierung/ Dechiffrierung von Krebsmeldungen, der Abgleich anonymisierter
Meldungen in der Registerstelle und die Entwicklung eines epidemiologischen Informationssystem
betrachtet ([4], [5]).
author:
- first_name: Wilfried
full_name: Thoben, Wilfried
last_name: Thoben
- first_name: Hans-Jürgen
full_name: Appelrath, Hans-Jürgen
last_name: Appelrath
- first_name: Jens
full_name: Rettig, Jens
last_name: Rettig
- first_name: Stefan
full_name: Sauer, Stefan
id: '447'
last_name: Sauer
citation:
ama: 'Thoben W, Appelrath H-J, Rettig J, Sauer S. Berücksichtigung von Datenschutzaspekten
in einem bevölkerungsbezogenen Krebsregister. In: Proceedings of the Conference
on Medizin Und Information, Biometrie Und Epidemiologie (GMDS 1994), Dresden (Germany).
München: MMV Medizin Verlag; 1994:88-90.'
apa: 'Thoben, W., Appelrath, H.-J., Rettig, J., & Sauer, S. (1994). Berücksichtigung
von Datenschutzaspekten in einem bevölkerungsbezogenen Krebsregister. In Proceedings
of the conference on Medizin und Information, Biometrie und Epidemiologie (GMDS
1994), Dresden (Germany) (pp. 88–90). München: MMV Medizin Verlag.'
bibtex: '@inproceedings{Thoben_Appelrath_Rettig_Sauer_1994, place={München}, title={Berücksichtigung
von Datenschutzaspekten in einem bevölkerungsbezogenen Krebsregister}, booktitle={Proceedings
of the conference on Medizin und Information, Biometrie und Epidemiologie (GMDS
1994), Dresden (Germany)}, publisher={MMV Medizin Verlag}, author={Thoben, Wilfried
and Appelrath, Hans-Jürgen and Rettig, Jens and Sauer, Stefan}, year={1994}, pages={88–90}
}'
chicago: 'Thoben, Wilfried, Hans-Jürgen Appelrath, Jens Rettig, and Stefan Sauer.
“Berücksichtigung von Datenschutzaspekten in Einem Bevölkerungsbezogenen Krebsregister.”
In Proceedings of the Conference on Medizin Und Information, Biometrie Und
Epidemiologie (GMDS 1994), Dresden (Germany), 88–90. München: MMV Medizin
Verlag, 1994.'
ieee: W. Thoben, H.-J. Appelrath, J. Rettig, and S. Sauer, “Berücksichtigung von
Datenschutzaspekten in einem bevölkerungsbezogenen Krebsregister,” in Proceedings
of the conference on Medizin und Information, Biometrie und Epidemiologie (GMDS
1994), Dresden (Germany), 1994, pp. 88–90.
mla: Thoben, Wilfried, et al. “Berücksichtigung von Datenschutzaspekten in Einem
Bevölkerungsbezogenen Krebsregister.” Proceedings of the Conference on Medizin
Und Information, Biometrie Und Epidemiologie (GMDS 1994), Dresden (Germany),
MMV Medizin Verlag, 1994, pp. 88–90.
short: 'W. Thoben, H.-J. Appelrath, J. Rettig, S. Sauer, in: Proceedings of the
Conference on Medizin Und Information, Biometrie Und Epidemiologie (GMDS 1994),
Dresden (Germany), MMV Medizin Verlag, München, 1994, pp. 88–90.'
date_created: 2019-02-20T13:53:08Z
date_updated: 2022-01-06T07:03:46Z
department:
- _id: '66'
language:
- iso: eng
page: 88-90
place: München
publication: Proceedings of the conference on Medizin und Information, Biometrie und
Epidemiologie (GMDS 1994), Dresden (Germany)
publisher: MMV Medizin Verlag
status: public
title: Berücksichtigung von Datenschutzaspekten in einem bevölkerungsbezogenen Krebsregister
type: conference
user_id: '52534'
year: '1994'
...
---
_id: '8094'
author:
- first_name: Stefan
full_name: Krauter, Stefan
id: '28836'
last_name: Krauter
orcid: 0000-0002-3594-260X
- first_name: Rolf
full_name: Hanitsch, Rolf
last_name: Hanitsch
citation:
ama: 'Krauter S, Hanitsch R. Einfluß optischer und thermischer Parameter auf den
Tageswirkungsgrad von photovoltaischen Modulen. In: Neuntes Internationales
Sonnenforum, Berlin (Deutschland), 28. Juni – 1. Juli 1994, S. 495–502. ;
1994.'
apa: Krauter, S., & Hanitsch, R. (1994). Einfluß optischer und thermischer Parameter
auf den Tageswirkungsgrad von photovoltaischen Modulen. In Neuntes Internationales
Sonnenforum, Berlin (Deutschland), 28. Juni – 1. Juli 1994, S. 495–502.
bibtex: '@inproceedings{Krauter_Hanitsch_1994, title={Einfluß optischer und thermischer
Parameter auf den Tageswirkungsgrad von photovoltaischen Modulen}, booktitle={Neuntes
Internationales Sonnenforum, Berlin (Deutschland), 28. Juni – 1. Juli 1994, S.
495–502}, author={Krauter, Stefan and Hanitsch, Rolf}, year={1994} }'
chicago: Krauter, Stefan, and Rolf Hanitsch. “Einfluß Optischer Und Thermischer
Parameter Auf Den Tageswirkungsgrad von Photovoltaischen Modulen.” In Neuntes
Internationales Sonnenforum, Berlin (Deutschland), 28. Juni – 1. Juli 1994, S.
495–502, 1994.
ieee: S. Krauter and R. Hanitsch, “Einfluß optischer und thermischer Parameter auf
den Tageswirkungsgrad von photovoltaischen Modulen,” in Neuntes Internationales
Sonnenforum, Berlin (Deutschland), 28. Juni – 1. Juli 1994, S. 495–502, 1994.
mla: Krauter, Stefan, and Rolf Hanitsch. “Einfluß Optischer Und Thermischer Parameter
Auf Den Tageswirkungsgrad von Photovoltaischen Modulen.” Neuntes Internationales
Sonnenforum, Berlin (Deutschland), 28. Juni – 1. Juli 1994, S. 495–502, 1994.
short: 'S. Krauter, R. Hanitsch, in: Neuntes Internationales Sonnenforum, Berlin
(Deutschland), 28. Juni – 1. Juli 1994, S. 495–502, 1994.'
conference:
name: Neuntes Internationales Sonnenforum, Berlin (Deutschland), 28. Juni – 1. Juli
1994
date_created: 2019-02-26T10:11:47Z
date_updated: 2022-01-06T07:03:50Z
department:
- _id: '53'
language:
- iso: eng
publication: Neuntes Internationales Sonnenforum, Berlin (Deutschland), 28. Juni –
1. Juli 1994, S. 495–502
status: public
title: Einfluß optischer und thermischer Parameter auf den Tageswirkungsgrad von photovoltaischen
Modulen
type: conference
user_id: '16148'
year: '1994'
...
---
_id: '16549'
author:
- first_name: Michael
full_name: Dellnitz, Michael
last_name: Dellnitz
- first_name: Martin
full_name: Golubitsky, Martin
last_name: Golubitsky
- first_name: Matthew
full_name: Nicol, Matthew
last_name: Nicol
citation:
ama: 'Dellnitz M, Golubitsky M, Nicol M. Symmetry of Attractors and the Karhunen-Loève
Decomposition. In: Trends and Perspectives in Applied Mathematics. New
York, NY; 1994. doi:10.1007/978-1-4612-0859-4_4'
apa: Dellnitz, M., Golubitsky, M., & Nicol, M. (1994). Symmetry of Attractors
and the Karhunen-Loève Decomposition. In Trends and Perspectives in Applied
Mathematics. New York, NY. https://doi.org/10.1007/978-1-4612-0859-4_4
bibtex: '@inbook{Dellnitz_Golubitsky_Nicol_1994, place={New York, NY}, title={Symmetry
of Attractors and the Karhunen-Loève Decomposition}, DOI={10.1007/978-1-4612-0859-4_4},
booktitle={Trends and Perspectives in Applied Mathematics}, author={Dellnitz,
Michael and Golubitsky, Martin and Nicol, Matthew}, year={1994} }'
chicago: Dellnitz, Michael, Martin Golubitsky, and Matthew Nicol. “Symmetry of Attractors
and the Karhunen-Loève Decomposition.” In Trends and Perspectives in Applied
Mathematics. New York, NY, 1994. https://doi.org/10.1007/978-1-4612-0859-4_4.
ieee: M. Dellnitz, M. Golubitsky, and M. Nicol, “Symmetry of Attractors and the
Karhunen-Loève Decomposition,” in Trends and Perspectives in Applied Mathematics,
New York, NY, 1994.
mla: Dellnitz, Michael, et al. “Symmetry of Attractors and the Karhunen-Loève Decomposition.”
Trends and Perspectives in Applied Mathematics, 1994, doi:10.1007/978-1-4612-0859-4_4.
short: 'M. Dellnitz, M. Golubitsky, M. Nicol, in: Trends and Perspectives in Applied
Mathematics, New York, NY, 1994.'
date_created: 2020-04-15T09:02:32Z
date_updated: 2022-01-06T06:52:52Z
department:
- _id: '101'
doi: 10.1007/978-1-4612-0859-4_4
language:
- iso: eng
place: New York, NY
publication: Trends and Perspectives in Applied Mathematics
publication_identifier:
isbn:
- '9781461269243'
- '9781461208594'
issn:
- 0066-5452
publication_status: published
status: public
title: Symmetry of Attractors and the Karhunen-Loève Decomposition
type: book_chapter
user_id: '15701'
year: '1994'
...
---
_id: '11879'
abstract:
- lang: eng
text: "This paper gives an overview of a research system for phoneme based, large
vocabulary continuous speech recognition. The system to be described has been
applied to the SPICOS task, the DARPA RM task and a 12000 word dictation task.
Experimental results for these three tasks will be presented. Like many other
systems, the recognition architecture is based on an integrated statistical approach.
In this paper, we describe the characteristic features of the system as opposed
to other systems: (1) The Viterbi criterion is consistently applied both in training
and testing. (2) Continuous mixture densities are used without any tying or smoothing;
this approach can be viewed as a sort of \x91statistical template matching\x92.
(3) Time-synchronous beam search is used consistently throughout all tasks; extensions
using a tree organization of the vocabulary and phoneme lookahead are presented
so that a 12000 word task can be handled."
author:
- first_name: Hermann
full_name: Ney, Hermann
last_name: Ney
- first_name: Volker
full_name: Steinbeiss, Volker
last_name: Steinbeiss
- first_name: Reinhold
full_name: Haeb-Umbach, Reinhold
id: '242'
last_name: Haeb-Umbach
- first_name: Bach Hiep
full_name: Tran, Bach Hiep
last_name: Tran
citation:
ama: Ney H, Steinbeiss V, Haeb-Umbach R, Tran BH. An Overview of the Philips Research
System for Large Vocabulary Continuous Speech Recognition. International Journal
on Pattern Recognition and Artificial Intelligence. 1994.
apa: Ney, H., Steinbeiss, V., Haeb-Umbach, R., & Tran, B. H. (1994). An Overview
of the Philips Research System for Large Vocabulary Continuous Speech Recognition.
International Journal on Pattern Recognition and Artificial Intelligence.
bibtex: '@article{Ney_Steinbeiss_Haeb-Umbach_Tran_1994, title={An Overview of the
Philips Research System for Large Vocabulary Continuous Speech Recognition}, journal={International
Journal on Pattern Recognition and Artificial Intelligence}, author={Ney, Hermann
and Steinbeiss, Volker and Haeb-Umbach, Reinhold and Tran, Bach Hiep}, year={1994}
}'
chicago: Ney, Hermann, Volker Steinbeiss, Reinhold Haeb-Umbach, and Bach Hiep Tran.
“An Overview of the Philips Research System for Large Vocabulary Continuous Speech
Recognition.” International Journal on Pattern Recognition and Artificial Intelligence,
1994.
ieee: H. Ney, V. Steinbeiss, R. Haeb-Umbach, and B. H. Tran, “An Overview of the
Philips Research System for Large Vocabulary Continuous Speech Recognition,” International
Journal on Pattern Recognition and Artificial Intelligence, 1994.
mla: Ney, Hermann, et al. “An Overview of the Philips Research System for Large
Vocabulary Continuous Speech Recognition.” International Journal on Pattern
Recognition and Artificial Intelligence, 1994.
short: H. Ney, V. Steinbeiss, R. Haeb-Umbach, B.H. Tran, International Journal on
Pattern Recognition and Artificial Intelligence (1994).
date_created: 2019-07-12T05:30:01Z
date_updated: 2022-01-06T06:51:11Z
department:
- _id: '54'
language:
- iso: eng
publication: International Journal on Pattern Recognition and Artificial Intelligence
status: public
title: An Overview of the Philips Research System for Large Vocabulary Continuous
Speech Recognition
type: journal_article
user_id: '44006'
year: '1994'
...
---
_id: '34939'
author:
- first_name: Johannes
full_name: Süßmann, Johannes
id: '16220'
last_name: Süßmann
orcid: 0000-0001-5716-0863
citation:
ama: 'Süßmann J. [Art.] Kunstsoziologie. In: Kerber H, Schmieder A, eds. Spezielle
Soziologien. Problemfelder, Forschungsbereiche, Anwendungsorientierungen.
Vol 542. Rowohlts Enzyklopädie. Rowohlt; 1994:520–540.'
apa: Süßmann, J. (1994). [Art.] Kunstsoziologie. In H. Kerber & A. Schmieder
(Eds.), Spezielle Soziologien. Problemfelder, Forschungsbereiche, Anwendungsorientierungen
(Vol. 542, pp. 520–540). Rowohlt.
bibtex: '@inbook{Süßmann_1994, place={Reinbek}, series={Rowohlts Enzyklopädie},
title={[Art.] Kunstsoziologie}, volume={542}, booktitle={Spezielle Soziologien.
Problemfelder, Forschungsbereiche, Anwendungsorientierungen}, publisher={Rowohlt},
author={Süßmann, Johannes}, editor={Kerber, Harald and Schmieder, Arnold}, year={1994},
pages={520–540}, collection={Rowohlts Enzyklopädie} }'
chicago: 'Süßmann, Johannes. “[Art.] Kunstsoziologie.” In Spezielle Soziologien.
Problemfelder, Forschungsbereiche, Anwendungsorientierungen, edited by Harald
Kerber and Arnold Schmieder, 542:520–540. Rowohlts Enzyklopädie. Reinbek: Rowohlt,
1994.'
ieee: 'J. Süßmann, “[Art.] Kunstsoziologie,” in Spezielle Soziologien. Problemfelder,
Forschungsbereiche, Anwendungsorientierungen, vol. 542, H. Kerber and A. Schmieder,
Eds. Reinbek: Rowohlt, 1994, pp. 520–540.'
mla: Süßmann, Johannes. “[Art.] Kunstsoziologie.” Spezielle Soziologien. Problemfelder,
Forschungsbereiche, Anwendungsorientierungen, edited by Harald Kerber and
Arnold Schmieder, vol. 542, Rowohlt, 1994, pp. 520–540.
short: 'J. Süßmann, in: H. Kerber, A. Schmieder (Eds.), Spezielle Soziologien. Problemfelder,
Forschungsbereiche, Anwendungsorientierungen, Rowohlt, Reinbek, 1994, pp. 520–540.'
date_created: 2022-12-23T18:51:32Z
date_updated: 2022-12-28T21:30:30Z
department:
- _id: '446'
editor:
- first_name: Harald
full_name: Kerber, Harald
last_name: Kerber
- first_name: Arnold
full_name: Schmieder, Arnold
last_name: Schmieder
extern: '1'
intvolume: ' 542'
language:
- iso: ger
page: 520–540
place: Reinbek
publication: Spezielle Soziologien. Problemfelder, Forschungsbereiche, Anwendungsorientierungen
publication_identifier:
isbn:
- 3-499-55542-5
publication_status: published
publisher: Rowohlt
series_title: Rowohlts Enzyklopädie
status: public
title: '[Art.] Kunstsoziologie'
type: encyclopedia_article
user_id: '16220'
volume: 542
year: '1994'
...
---
_id: '36179'
author:
- first_name: Hermann
full_name: Kamp, Hermann
id: '125'
last_name: Kamp
citation:
ama: Kamp H. Konflikte im hohen Norden. Ein Blick auf einige Neuerscheinungen zur
isländischen und norwegischen Geschichte im Mittelalter. Historische Zeitschrift.
1994;230:99-107.
apa: Kamp, H. (1994). Konflikte im hohen Norden. Ein Blick auf einige Neuerscheinungen
zur isländischen und norwegischen Geschichte im Mittelalter. Historische Zeitschrift,
230, 99–107.
bibtex: '@article{Kamp_1994, title={Konflikte im hohen Norden. Ein Blick auf einige
Neuerscheinungen zur isländischen und norwegischen Geschichte im Mittelalter},
volume={230}, journal={Historische Zeitschrift}, author={Kamp, Hermann}, year={1994},
pages={99–107} }'
chicago: 'Kamp, Hermann. “Konflikte im hohen Norden. Ein Blick auf einige Neuerscheinungen
zur isländischen und norwegischen Geschichte im Mittelalter.” Historische Zeitschrift
230 (1994): 99–107.'
ieee: H. Kamp, “Konflikte im hohen Norden. Ein Blick auf einige Neuerscheinungen
zur isländischen und norwegischen Geschichte im Mittelalter,” Historische Zeitschrift,
vol. 230, pp. 99–107, 1994.
mla: Kamp, Hermann. “Konflikte im hohen Norden. Ein Blick auf einige Neuerscheinungen
zur isländischen und norwegischen Geschichte im Mittelalter.” Historische Zeitschrift,
vol. 230, 1994, pp. 99–107.
short: H. Kamp, Historische Zeitschrift 230 (1994) 99–107.
date_created: 2023-01-11T13:59:56Z
date_updated: 2023-01-11T18:30:41Z
department:
- _id: '6'
extern: '1'
intvolume: ' 230'
language:
- iso: ger
page: 99-107
publication: Historische Zeitschrift
publication_status: published
status: public
title: Konflikte im hohen Norden. Ein Blick auf einige Neuerscheinungen zur isländischen
und norwegischen Geschichte im Mittelalter
type: journal_article
user_id: '125'
volume: 230
year: '1994'
...
---
_id: '53459'
author:
- first_name: Brigitte
full_name: Englisch, Brigitte
id: '108'
last_name: Englisch
citation:
ama: Englisch B. Die Osterfelder Pancratiuskirche und die Bottroper Cyriacuskirche
als Indikatoren der frühmittelalterlichen Missionierung Westfalens. Ursprünge
und Entwicklungen der Stadt Oberhausen Quellen und Forschungen zu ihrer Geschichte.
1994;4:183-243.
apa: Englisch, B. (1994). Die Osterfelder Pancratiuskirche und die Bottroper Cyriacuskirche
als Indikatoren der frühmittelalterlichen Missionierung Westfalens. Ursprünge
und Entwicklungen der Stadt Oberhausen. Quellen und Forschungen zu ihrer Geschichte,
4, 183–243.
bibtex: '@article{Englisch_1994, title={Die Osterfelder Pancratiuskirche und die
Bottroper Cyriacuskirche als Indikatoren der frühmittelalterlichen Missionierung
Westfalens}, volume={4}, journal={Ursprünge und Entwicklungen der Stadt Oberhausen.
Quellen und Forschungen zu ihrer Geschichte}, author={Englisch, Brigitte}, year={1994},
pages={183–243} }'
chicago: 'Englisch, Brigitte. “Die Osterfelder Pancratiuskirche und die Bottroper
Cyriacuskirche als Indikatoren der frühmittelalterlichen Missionierung Westfalens.”
Ursprünge und Entwicklungen der Stadt Oberhausen. Quellen und Forschungen zu
ihrer Geschichte 4 (1994): 183–243.'
ieee: B. Englisch, “Die Osterfelder Pancratiuskirche und die Bottroper Cyriacuskirche
als Indikatoren der frühmittelalterlichen Missionierung Westfalens,” Ursprünge
und Entwicklungen der Stadt Oberhausen. Quellen und Forschungen zu ihrer Geschichte,
vol. 4, pp. 183–243, 1994.
mla: Englisch, Brigitte. “Die Osterfelder Pancratiuskirche und die Bottroper Cyriacuskirche
als Indikatoren der frühmittelalterlichen Missionierung Westfalens.” Ursprünge
und Entwicklungen der Stadt Oberhausen. Quellen und Forschungen zu ihrer Geschichte,
vol. 4, 1994, pp. 183–243.
short: B. Englisch, Ursprünge und Entwicklungen der Stadt Oberhausen. Quellen und
Forschungen zu ihrer Geschichte 4 (1994) 183–243.
date_created: 2024-04-12T11:05:13Z
date_updated: 2024-04-16T08:45:55Z
department:
- _id: '513'
intvolume: ' 4'
language:
- iso: ger
page: 183-243
publication: Ursprünge und Entwicklungen der Stadt Oberhausen. Quellen und Forschungen
zu ihrer Geschichte
publication_status: published
status: public
title: Die Osterfelder Pancratiuskirche und die Bottroper Cyriacuskirche als Indikatoren
der frühmittelalterlichen Missionierung Westfalens
type: journal_article
user_id: '108'
volume: 4
year: '1994'
...
---
_id: '53454'
author:
- first_name: Brigitte
full_name: Englisch, Brigitte
id: '108'
last_name: Englisch
citation:
ama: Englisch B. Die Artes liberales im frühen Mittelalter (5.-9. Jh.). Das Quadrivium
und der Komputus als Indikatoren für Kontinuität und Erneuerung der exakten Wissenschaften
zwischen Antike und Mittelalter. Vol 33.; 1994.
apa: Englisch, B. (1994). Die Artes liberales im frühen Mittelalter (5.-9. Jh.).
Das Quadrivium und der Komputus als Indikatoren für Kontinuität und Erneuerung
der exakten Wissenschaften zwischen Antike und Mittelalter (Vol. 33).
bibtex: '@book{Englisch_1994, place={Stuttgart}, series={Sudhoffs Archiv, Beihefte},
title={Die Artes liberales im frühen Mittelalter (5.-9. Jh.). Das Quadrivium und
der Komputus als Indikatoren für Kontinuität und Erneuerung der exakten Wissenschaften
zwischen Antike und Mittelalter}, volume={33}, author={Englisch, Brigitte}, year={1994},
collection={Sudhoffs Archiv, Beihefte} }'
chicago: Englisch, Brigitte. Die Artes liberales im frühen Mittelalter (5.-9.
Jh.). Das Quadrivium und der Komputus als Indikatoren für Kontinuität und Erneuerung
der exakten Wissenschaften zwischen Antike und Mittelalter. Vol. 33. Sudhoffs
Archiv, Beihefte. Stuttgart, 1994.
ieee: B. Englisch, Die Artes liberales im frühen Mittelalter (5.-9. Jh.). Das
Quadrivium und der Komputus als Indikatoren für Kontinuität und Erneuerung der
exakten Wissenschaften zwischen Antike und Mittelalter, vol. 33. Stuttgart,
1994.
mla: Englisch, Brigitte. Die Artes liberales im frühen Mittelalter (5.-9. Jh.).
Das Quadrivium und der Komputus als Indikatoren für Kontinuität und Erneuerung
der exakten Wissenschaften zwischen Antike und Mittelalter. 1994.
short: B. Englisch, Die Artes liberales im frühen Mittelalter (5.-9. Jh.). Das Quadrivium
und der Komputus als Indikatoren für Kontinuität und Erneuerung der exakten Wissenschaften
zwischen Antike und Mittelalter, Stuttgart, 1994.
date_created: 2024-04-12T10:46:06Z
date_updated: 2024-04-16T08:46:12Z
department:
- _id: '513'
intvolume: ' 33'
language:
- iso: ger
page: '494'
place: Stuttgart
publication_identifier:
isbn:
- '3515064311'
publication_status: published
series_title: Sudhoffs Archiv, Beihefte
status: public
title: Die Artes liberales im frühen Mittelalter (5.-9. Jh.). Das Quadrivium und der
Komputus als Indikatoren für Kontinuität und Erneuerung der exakten Wissenschaften
zwischen Antike und Mittelalter
type: dissertation
user_id: '108'
volume: 33
year: '1994'
...
---
_id: '43514'
author:
- first_name: Harald
full_name: Schroeter-Wittke, Harald
id: '480'
last_name: Schroeter-Wittke
citation:
ama: 'Schroeter-Wittke H. 4. Sonntag nach Trinitatis. Predigttext: 1. Petrus 3,8-15a(15b-17).
In: Domay E, ed. Gottesdienstpraxis. Serie A. IV. Perikopenreihe Band 2.
; 1994:128-135.'
apa: 'Schroeter-Wittke, H. (1994). 4. Sonntag nach Trinitatis. Predigttext: 1. Petrus
3,8-15a(15b-17). In E. Domay (Ed.), Gottesdienstpraxis. Serie A. IV. Perikopenreihe
Band 2 (pp. 128–135).'
bibtex: '@inbook{Schroeter-Wittke_1994, title={4. Sonntag nach Trinitatis. Predigttext:
1. Petrus 3,8-15a(15b-17)}, booktitle={Gottesdienstpraxis. Serie A. IV. Perikopenreihe
Band 2}, author={Schroeter-Wittke, Harald}, editor={Domay, Erhard}, year={1994},
pages={128–135} }'
chicago: 'Schroeter-Wittke, Harald. “4. Sonntag Nach Trinitatis. Predigttext: 1.
Petrus 3,8-15a(15b-17).” In Gottesdienstpraxis. Serie A. IV. Perikopenreihe
Band 2, edited by Erhard Domay, 128–35, 1994.'
ieee: 'H. Schroeter-Wittke, “4. Sonntag nach Trinitatis. Predigttext: 1. Petrus
3,8-15a(15b-17),” in Gottesdienstpraxis. Serie A. IV. Perikopenreihe Band 2,
E. Domay, Ed. 1994, pp. 128–135.'
mla: 'Schroeter-Wittke, Harald. “4. Sonntag Nach Trinitatis. Predigttext: 1. Petrus
3,8-15a(15b-17).” Gottesdienstpraxis. Serie A. IV. Perikopenreihe Band 2,
edited by Erhard Domay, 1994, pp. 128–35.'
short: 'H. Schroeter-Wittke, in: E. Domay (Ed.), Gottesdienstpraxis. Serie A. IV.
Perikopenreihe Band 2, 1994, pp. 128–135.'
date_created: 2023-04-14T21:12:54Z
date_updated: 2023-04-14T21:12:57Z
editor:
- first_name: Erhard
full_name: Domay, Erhard
last_name: Domay
language:
- iso: eng
page: 128-135
publication: Gottesdienstpraxis. Serie A. IV. Perikopenreihe Band 2
status: public
title: '4. Sonntag nach Trinitatis. Predigttext: 1. Petrus 3,8-15a(15b-17)'
type: book_chapter
user_id: '480'
year: '1994'
...
---
_id: '43513'
author:
- first_name: Harald
full_name: Schroeter-Wittke, Harald
id: '480'
last_name: Schroeter-Wittke
citation:
ama: Schroeter-Wittke H. In Bibel steckt Musik. Eine Er-Hörung von 1 Kön 19. Der
Evangelische Erzieher. 1994;46:169-173.
apa: Schroeter-Wittke, H. (1994). In Bibel steckt Musik. Eine Er-Hörung von 1 Kön
19. Der Evangelische Erzieher, 46, 169–173.
bibtex: '@article{Schroeter-Wittke_1994, title={In Bibel steckt Musik. Eine Er-Hörung
von 1 Kön 19}, volume={46}, journal={Der Evangelische Erzieher}, author={Schroeter-Wittke,
Harald}, year={1994}, pages={169–173} }'
chicago: 'Schroeter-Wittke, Harald. “In Bibel Steckt Musik. Eine Er-Hörung von 1
Kön 19.” Der Evangelische Erzieher 46 (1994): 169–73.'
ieee: H. Schroeter-Wittke, “In Bibel steckt Musik. Eine Er-Hörung von 1 Kön 19,”
Der Evangelische Erzieher, vol. 46, pp. 169–173, 1994.
mla: Schroeter-Wittke, Harald. “In Bibel Steckt Musik. Eine Er-Hörung von 1 Kön
19.” Der Evangelische Erzieher, vol. 46, 1994, pp. 169–73.
short: H. Schroeter-Wittke, Der Evangelische Erzieher 46 (1994) 169–173.
date_created: 2023-04-14T21:11:23Z
date_updated: 2023-04-14T21:11:26Z
intvolume: ' 46'
language:
- iso: eng
page: 169-173
publication: Der Evangelische Erzieher
status: public
title: In Bibel steckt Musik. Eine Er-Hörung von 1 Kön 19
type: journal_article
user_id: '480'
volume: 46
year: '1994'
...
---
_id: '43598'
abstract:
- lang: eng
text: Since the realization of semiconductor heterostructures vertical transport
of electrically injected carriers has been one of the most interesting topics
in semiconductor physics. Precise engineering of semiconductor layers and thus
electronic energy levels allows the tailoring of transport properties over a wide
range and has even led to the invention of semiconductor devices relying on ballistic
electron transport. In addition, negative differential resistance (NDR) can be
realized by using tunneling diodes containing double-barrier heterostructures
or a superlattice structure.5,6 Actually, the proposal of Esaki and Tsu5 to use
electronic Bloch oscillations in the miniband of a semiconductor superlattice
to realize NDR marked the starting point for the physics and applications of semiconductor
heterostructures.
author:
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: J.
full_name: Feldmann, J.
last_name: Feldmann
- first_name: G.
full_name: von Plessen, G.
last_name: von Plessen
- first_name: P.
full_name: Thomas, P.
last_name: Thomas
- first_name: E.O.
full_name: Göbel, E.O.
last_name: Göbel
- first_name: K.W.
full_name: Goosen, K.W.
last_name: Goosen
- first_name: D.A.B.
full_name: Miller, D.A.B.
last_name: Miller
- first_name: J.E.
full_name: Cunningham, J.E.
last_name: Cunningham
citation:
ama: 'Meier T, Feldmann J, von Plessen G, et al. Vertical transport studied by sub-picosecond
four-wave mixing experiments. In: Phillips RT, ed. Coherent Optical Interactions
in Semiconductors. NATO ASI Series B330. Springer-Science+Business Media;
1994:223-244. doi:10.1007/978-1-4757-9748-0_10'
apa: Meier, T., Feldmann, J., von Plessen, G., Thomas, P., Göbel, E. O., Goosen,
K. W., Miller, D. A. B., & Cunningham, J. E. (1994). Vertical transport studied
by sub-picosecond four-wave mixing experiments. In R. T. Phillips (Ed.), Coherent
Optical Interactions in Semiconductors (pp. 223–244). Springer-Science+Business
Media. https://doi.org/10.1007/978-1-4757-9748-0_10
bibtex: '@inbook{Meier_Feldmann_von Plessen_Thomas_Göbel_Goosen_Miller_Cunningham_1994,
place={New York}, series={NATO ASI Series B330}, title={Vertical transport studied
by sub-picosecond four-wave mixing experiments}, DOI={10.1007/978-1-4757-9748-0_10},
booktitle={Coherent Optical Interactions in Semiconductors}, publisher={Springer-Science+Business
Media}, author={Meier, Torsten and Feldmann, J. and von Plessen, G. and Thomas,
P. and Göbel, E.O. and Goosen, K.W. and Miller, D.A.B. and Cunningham, J.E.},
editor={Phillips, R.T.}, year={1994}, pages={223–244}, collection={NATO ASI Series
B330} }'
chicago: 'Meier, Torsten, J. Feldmann, G. von Plessen, P. Thomas, E.O. Göbel, K.W.
Goosen, D.A.B. Miller, and J.E. Cunningham. “Vertical Transport Studied by Sub-Picosecond
Four-Wave Mixing Experiments.” In Coherent Optical Interactions in Semiconductors,
edited by R.T. Phillips, 223–44. NATO ASI Series B330. New York: Springer-Science+Business
Media, 1994. https://doi.org/10.1007/978-1-4757-9748-0_10.'
ieee: 'T. Meier et al., “Vertical transport studied by sub-picosecond four-wave
mixing experiments,” in Coherent Optical Interactions in Semiconductors,
R. T. Phillips, Ed. New York: Springer-Science+Business Media, 1994, pp. 223–244.'
mla: Meier, Torsten, et al. “Vertical Transport Studied by Sub-Picosecond Four-Wave
Mixing Experiments.” Coherent Optical Interactions in Semiconductors, edited
by R.T. Phillips, Springer-Science+Business Media, 1994, pp. 223–44, doi:10.1007/978-1-4757-9748-0_10.
short: 'T. Meier, J. Feldmann, G. von Plessen, P. Thomas, E.O. Göbel, K.W. Goosen,
D.A.B. Miller, J.E. Cunningham, in: R.T. Phillips (Ed.), Coherent Optical Interactions
in Semiconductors, Springer-Science+Business Media, New York, 1994, pp. 223–244.'
date_created: 2023-04-14T23:50:07Z
date_updated: 2023-04-14T23:50:10Z
department:
- _id: '293'
doi: 10.1007/978-1-4757-9748-0_10
editor:
- first_name: R.T.
full_name: Phillips, R.T.
last_name: Phillips
extern: '1'
language:
- iso: eng
main_file_link:
- url: https://link.springer.com/chapter/10.1007/978-1-4757-9748-0_10
page: 223-244
place: New York
publication: Coherent Optical Interactions in Semiconductors
publication_identifier:
isbn:
- 978-1-4757-9750-3
publication_status: published
publisher: Springer-Science+Business Media
series_title: NATO ASI Series B330
status: public
title: Vertical transport studied by sub-picosecond four-wave mixing experiments
type: book_chapter
user_id: '49063'
year: '1994'
...
---
_id: '43597'
abstract:
- lang: eng
text: Transient four-wave mixing (TFWM) experiments have been widely used to study
the excitation dynamics of excitons in quantum wells [1]. Recently is has been
observed that TFWM signals, especially quantum beats between heavy-hole (hh) and
light-hole (lh) excitons, strongly depend on the polarization of the incident
laser pulses [2–6]. This dependence is presently being investigated.
author:
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: D.
full_name: Bennhardt, D.
last_name: Bennhardt
- first_name: P.
full_name: Thomas, P.
last_name: Thomas
- first_name: Y.Z.
full_name: Hu, Y.Z.
last_name: Hu
- first_name: R.
full_name: Binder, R.
last_name: Binder
- first_name: S.W.
full_name: Koch, S.W.
last_name: Koch
citation:
ama: 'Meier T, Bennhardt D, Thomas P, Hu YZ, Binder R, Koch SW. Theory of polarization-dependent
four-wave mixing using the optical Bloch equations. In: Phillips RT, ed. Coherent
Optical Interactions in Semiconductors. NATO ASI Series B330. Springer Science+Business
Media; 1994:349-354. doi:10.1007/978-1-4757-9748-0_26'
apa: Meier, T., Bennhardt, D., Thomas, P., Hu, Y. Z., Binder, R., & Koch, S.
W. (1994). Theory of polarization-dependent four-wave mixing using the optical
Bloch equations. In R. T. Phillips (Ed.), Coherent Optical Interactions in
Semiconductors (pp. 349–354). Springer Science+Business Media. https://doi.org/10.1007/978-1-4757-9748-0_26
bibtex: '@inbook{Meier_Bennhardt_Thomas_Hu_Binder_Koch_1994, place={New York}, series={NATO
ASI Series B330}, title={Theory of polarization-dependent four-wave mixing using
the optical Bloch equations}, DOI={10.1007/978-1-4757-9748-0_26},
booktitle={Coherent Optical Interactions in Semiconductors}, publisher={Springer
Science+Business Media}, author={Meier, Torsten and Bennhardt, D. and Thomas,
P. and Hu, Y.Z. and Binder, R. and Koch, S.W.}, editor={Phillips, R.T.}, year={1994},
pages={349–354}, collection={NATO ASI Series B330} }'
chicago: 'Meier, Torsten, D. Bennhardt, P. Thomas, Y.Z. Hu, R. Binder, and S.W.
Koch. “Theory of Polarization-Dependent Four-Wave Mixing Using the Optical Bloch
Equations.” In Coherent Optical Interactions in Semiconductors, edited
by R.T. Phillips, 349–54. NATO ASI Series B330. New York: Springer Science+Business
Media, 1994. https://doi.org/10.1007/978-1-4757-9748-0_26.'
ieee: 'T. Meier, D. Bennhardt, P. Thomas, Y. Z. Hu, R. Binder, and S. W. Koch, “Theory
of polarization-dependent four-wave mixing using the optical Bloch equations,”
in Coherent Optical Interactions in Semiconductors, R. T. Phillips, Ed.
New York: Springer Science+Business Media, 1994, pp. 349–354.'
mla: Meier, Torsten, et al. “Theory of Polarization-Dependent Four-Wave Mixing Using
the Optical Bloch Equations.” Coherent Optical Interactions in Semiconductors,
edited by R.T. Phillips, Springer Science+Business Media, 1994, pp. 349–54, doi:10.1007/978-1-4757-9748-0_26.
short: 'T. Meier, D. Bennhardt, P. Thomas, Y.Z. Hu, R. Binder, S.W. Koch, in: R.T.
Phillips (Ed.), Coherent Optical Interactions in Semiconductors, Springer Science+Business
Media, New York, 1994, pp. 349–354.'
date_created: 2023-04-14T23:42:39Z
date_updated: 2023-04-14T23:42:42Z
department:
- _id: '293'
doi: 10.1007/978-1-4757-9748-0_26
editor:
- first_name: R.T.
full_name: Phillips, R.T.
last_name: Phillips
extern: '1'
language:
- iso: eng
main_file_link:
- url: https://link.springer.com/chapter/10.1007/978-1-4757-9748-0_26
page: 349-354
place: New York
publication: Coherent Optical Interactions in Semiconductors
publication_identifier:
eissn:
- 978-1-4757-9750-3
publication_status: published
publisher: Springer Science+Business Media
series_title: NATO ASI Series B330
status: public
title: Theory of polarization-dependent four-wave mixing using the optical Bloch equations
type: book_chapter
user_id: '49063'
year: '1994'
...
---
_id: '44283'
abstract:
- lang: eng
text: "The strong influence of exciton/exciton interaction on the nonlinear optical
response of the 2D exciton in GaAs quantum wells has been demonstrated in several
recent experimental studies. The theoretical model for the microscopic coupling
mechanism is still the subject of controversy, however. In ref. [1], we have presented
a model including a density dependent coupling between opposite spin excitons
which assumes that the interaction results in a renormalization of the matrix
elements, dephasing rates and energies of the transition from the single-exciton
state to the two-exciton state with respect to the corresponding quantities for
the single exciton transitions. In contrast, Wang et al. claim that all experimental
observations are explained by a density induced dephasing rate and that biexciton
states play no role [2]. Here we present a new 3-pulse degenerate-four-wave-mixing
(DFWM) configuration which is able to differentiate between pure local field effects
and biexcitonic contributions to the time-integrated signal. Experiments were
performed on an almost homogeneously broadened GaAs/Al0.3Ga0.7As single QW (well
width 20 nm, photoluminescence line 0.3 meV, homogenous linewidth 0.15 meV) in
the backward reflection geometry. The sample was cooled to 10 K and excited by
a sequence of three pulses (1.1 ps duration) with equal intensity, wave vectors
\U0001D458→1,\U0001D458→2,\U0001D458→3\r\n and delays τ12 and τ13 between the
second and first and the third and first pulse, respectively. The signal was monitored
in the direction \U0001D458→\U0001D460=\U0001D458→1+\U0001D458→2−\U0001D458→3\r\n
which provides no signal for the chosen pulse length if local field and renormalization
effects are negligible. The peak intensity of the time-integrated DFWM signal
has been calculated by solving the optical Bloch for a system of two non-interacting
two-level systems (2LS) with opposite circular polarization selection rules (local
field effect) and for the renormalized four-level system (4LS) depicted in Fig.
1 which assumes the formation of biexcitons between excitons with opposite spins.
The signal strength is proportional to the strength of the local field in the
case of the 2LS and to the renormalization for the 4LS. The peak signal intensities
expected for pure local field and pure biexction contributions are summarized
in the second and third column of Table 1 for eight experimental configurations
applying different linear and circularly polarized pulses. The values are normalized
to the signal strength predicted for three parallel linearly polarized pulses.
Close inspection of the data reveals remarkable differences of the peak amplitude
with polarization geometry for the two coupling models."
article_number: MD.5
author:
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: J.
full_name: Kuhl, J.
last_name: Kuhl
- first_name: E.J.
full_name: Mayer, E.J.
last_name: Mayer
- first_name: G.O.
full_name: Smith, G.O.
last_name: Smith
- first_name: D.
full_name: Bennhardt, D.
last_name: Bennhardt
- first_name: A.
full_name: Schulze, A.
last_name: Schulze
- first_name: P.
full_name: Thomas, P.
last_name: Thomas
- first_name: R.
full_name: Hey, R.
last_name: Hey
- first_name: K.
full_name: Ploog, K.
last_name: Ploog
citation:
ama: 'Meier T, Kuhl J, Mayer EJ, et al. Contributions of Bound and Unbound Two-Exciton
States to the Nonlinear Optical Response of GaAs Quantum Wells. In: International
Conference on Ultrafast Phenomena. ; 1994. doi:10.1364/UP.1994.MD.5'
apa: Meier, T., Kuhl, J., Mayer, E. J., Smith, G. O., Bennhardt, D., Schulze, A.,
Thomas, P., Hey, R., & Ploog, K. (1994). Contributions of Bound and Unbound
Two-Exciton States to the Nonlinear Optical Response of GaAs Quantum Wells. International
Conference on Ultrafast Phenomena, Article MD.5. International Conference
on Ultrafast Phenomena 1994, California, United States. https://doi.org/10.1364/UP.1994.MD.5
bibtex: '@inproceedings{Meier_Kuhl_Mayer_Smith_Bennhardt_Schulze_Thomas_Hey_Ploog_1994,
title={Contributions of Bound and Unbound Two-Exciton States to the Nonlinear
Optical Response of GaAs Quantum Wells}, DOI={10.1364/UP.1994.MD.5},
number={MD.5}, booktitle={International Conference on Ultrafast Phenomena}, author={Meier,
Torsten and Kuhl, J. and Mayer, E.J. and Smith, G.O. and Bennhardt, D. and Schulze,
A. and Thomas, P. and Hey, R. and Ploog, K.}, year={1994} }'
chicago: Meier, Torsten, J. Kuhl, E.J. Mayer, G.O. Smith, D. Bennhardt, A. Schulze,
P. Thomas, R. Hey, and K. Ploog. “Contributions of Bound and Unbound Two-Exciton
States to the Nonlinear Optical Response of GaAs Quantum Wells.” In International
Conference on Ultrafast Phenomena, 1994. https://doi.org/10.1364/UP.1994.MD.5.
ieee: 'T. Meier et al., “Contributions of Bound and Unbound Two-Exciton States
to the Nonlinear Optical Response of GaAs Quantum Wells,” presented at the International
Conference on Ultrafast Phenomena 1994, California, United States, 1994, doi:
10.1364/UP.1994.MD.5.'
mla: Meier, Torsten, et al. “Contributions of Bound and Unbound Two-Exciton States
to the Nonlinear Optical Response of GaAs Quantum Wells.” International Conference
on Ultrafast Phenomena, MD.5, 1994, doi:10.1364/UP.1994.MD.5.
short: 'T. Meier, J. Kuhl, E.J. Mayer, G.O. Smith, D. Bennhardt, A. Schulze, P.
Thomas, R. Hey, K. Ploog, in: International Conference on Ultrafast Phenomena,
1994.'
conference:
end_date: 1994-05-06
location: California, United States
name: International Conference on Ultrafast Phenomena 1994
start_date: 1994-05-02
date_created: 2023-05-01T11:36:11Z
date_updated: 2023-05-01T11:36:15Z
department:
- _id: '293'
doi: 10.1364/UP.1994.MD.5
extern: '1'
language:
- iso: eng
main_file_link:
- url: https://opg.optica.org/abstract.cfm?uri=UP-1994-MD.5
publication: International Conference on Ultrafast Phenomena
publication_status: published
status: public
title: Contributions of Bound and Unbound Two-Exciton States to the Nonlinear Optical
Response of GaAs Quantum Wells
type: conference
user_id: '49063'
year: '1994'
...
---
_id: '44282'
abstract:
- lang: eng
text: Although the importance of exciton/exciton interactions for the nonlinear
optical response of GaAs quantum wells (QW) is well established by many experimental
observations, the role of biexciton states in these processes is still an open
question, even at low excitation densities. Evidence for the formation of biexcitons
has been independently derived from pump-probe studies [1], from the density dependence
of the photoluminescence (PL) line shape [2] and from signal modulations observed
in degenerate-four-wave-mixing (DFWM) with incoherent light pulses [3]. Here,
we report on time-resolved DFWM with parallel (PP) and cross-polarized (CP) pulses.
Depending on the polarization geometry, the signals reveal strong quantum beats
which correspond to the splitting between either the heavy hole (hh) and light
hole (lh) exciton or the hh exciton and the biexciton.
article_number: ThD.22
author:
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: E.J.
full_name: Mayer, E.J.
last_name: Mayer
- first_name: G.O.
full_name: Smith, G.O.
last_name: Smith
- first_name: J.
full_name: Kuhl, J.
last_name: Kuhl
- first_name: D.
full_name: Bennhardt, D.
last_name: Bennhardt
- first_name: A.
full_name: Schulze, A.
last_name: Schulze
- first_name: P.
full_name: Thomas, P.
last_name: Thomas
- first_name: R.
full_name: Hey, R.
last_name: Hey
- first_name: K.
full_name: Ploog, K.
last_name: Ploog
citation:
ama: 'Meier T, Mayer EJ, Smith GO, et al. Observation of Biexcitons in Time-Resolved
Degenerate-Four-Wave-Mixing on GaAs Quantum Wells. In: International Conference
on Ultrafast Phenomena. ; 1994.'
apa: Meier, T., Mayer, E. J., Smith, G. O., Kuhl, J., Bennhardt, D., Schulze, A.,
Thomas, P., Hey, R., & Ploog, K. (1994). Observation of Biexcitons in Time-Resolved
Degenerate-Four-Wave-Mixing on GaAs Quantum Wells. International Conference
on Ultrafast Phenomena, Article ThD.22. International Conference on Ultrafast
Phenomena 1994, California, United States.
bibtex: '@inproceedings{Meier_Mayer_Smith_Kuhl_Bennhardt_Schulze_Thomas_Hey_Ploog_1994,
title={Observation of Biexcitons in Time-Resolved Degenerate-Four-Wave-Mixing
on GaAs Quantum Wells}, number={ThD.22}, booktitle={International Conference on
Ultrafast Phenomena}, author={Meier, Torsten and Mayer, E.J. and Smith, G.O. and
Kuhl, J. and Bennhardt, D. and Schulze, A. and Thomas, P. and Hey, R. and Ploog,
K.}, year={1994} }'
chicago: Meier, Torsten, E.J. Mayer, G.O. Smith, J. Kuhl, D. Bennhardt, A. Schulze,
P. Thomas, R. Hey, and K. Ploog. “Observation of Biexcitons in Time-Resolved Degenerate-Four-Wave-Mixing
on GaAs Quantum Wells.” In International Conference on Ultrafast Phenomena,
1994.
ieee: T. Meier et al., “Observation of Biexcitons in Time-Resolved Degenerate-Four-Wave-Mixing
on GaAs Quantum Wells,” presented at the International Conference on Ultrafast
Phenomena 1994, California, United States, 1994.
mla: Meier, Torsten, et al. “Observation of Biexcitons in Time-Resolved Degenerate-Four-Wave-Mixing
on GaAs Quantum Wells.” International Conference on Ultrafast Phenomena,
ThD.22, 1994.
short: 'T. Meier, E.J. Mayer, G.O. Smith, J. Kuhl, D. Bennhardt, A. Schulze, P.
Thomas, R. Hey, K. Ploog, in: International Conference on Ultrafast Phenomena,
1994.'
conference:
end_date: 1994-05-06
location: California, United States
name: International Conference on Ultrafast Phenomena 1994
start_date: 1994-05-02
date_created: 2023-05-01T11:33:22Z
date_updated: 2023-05-01T11:33:25Z
department:
- _id: '293'
extern: '1'
language:
- iso: eng
main_file_link:
- url: https://opg.optica.org/abstract.cfm?uri=UP-1994-ThD.22
publication: International Conference on Ultrafast Phenomena
publication_status: published
status: public
title: Observation of Biexcitons in Time-Resolved Degenerate-Four-Wave-Mixing on GaAs
Quantum Wells
type: conference
user_id: '49063'
year: '1994'
...
---
_id: '44280'
abstract:
- lang: eng
text: In the absence of scattering mechanisms, a crystal electron subjected to a
homogeneous electric field undergoes a periodic motion in both momentum and real
space. This oscillatory motion is known as Bloch oscillations (BOs) and has recently
been detected in transient four-wave mixing (FWM) and Tera-Hertz emission experiments
on semiconductor superlattices. It is generally assumed that the minimum field
required for the observation of BOs is controlled by the rate of scattering in
the material. However, an experimental verification of this point is still lacking.
article_number: QMC7
author:
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: G.
full_name: von Plessen, G.
last_name: von Plessen
- first_name: J.
full_name: Feldmann, J.
last_name: Feldmann
- first_name: E.O.
full_name: Göbel, E.O.
last_name: Göbel
- first_name: P.
full_name: Thomas, P.
last_name: Thomas
- first_name: K.W.
full_name: Goossen, K.W.
last_name: Goossen
- first_name: J.M.
full_name: Kuo, J.M.
last_name: Kuo
- first_name: R.F.
full_name: Kopf, R.F.
last_name: Kopf
citation:
ama: 'Meier T, von Plessen G, Feldmann J, et al. Field-induced dynamics of a wave
packet in a wide superlattice miniband. In: International Quantum Electronics
Conference. ; 1994.'
apa: Meier, T., von Plessen, G., Feldmann, J., Göbel, E. O., Thomas, P., Goossen,
K. W., Kuo, J. M., & Kopf, R. F. (1994). Field-induced dynamics of a wave
packet in a wide superlattice miniband. International Quantum Electronics Conference,
Article QMC7. International Quantum Electronics Conference 1994, Anaheim, California
United States.
bibtex: '@inproceedings{Meier_von Plessen_Feldmann_Göbel_Thomas_Goossen_Kuo_Kopf_1994,
title={Field-induced dynamics of a wave packet in a wide superlattice miniband},
number={QMC7}, booktitle={International Quantum Electronics Conference}, author={Meier,
Torsten and von Plessen, G. and Feldmann, J. and Göbel, E.O. and Thomas, P. and
Goossen, K.W. and Kuo, J.M. and Kopf, R.F.}, year={1994} }'
chicago: Meier, Torsten, G. von Plessen, J. Feldmann, E.O. Göbel, P. Thomas, K.W.
Goossen, J.M. Kuo, and R.F. Kopf. “Field-Induced Dynamics of a Wave Packet in
a Wide Superlattice Miniband.” In International Quantum Electronics Conference,
1994.
ieee: T. Meier et al., “Field-induced dynamics of a wave packet in a wide
superlattice miniband,” presented at the International Quantum Electronics Conference
1994, Anaheim, California United States, 1994.
mla: Meier, Torsten, et al. “Field-Induced Dynamics of a Wave Packet in a Wide Superlattice
Miniband.” International Quantum Electronics Conference, QMC7, 1994.
short: 'T. Meier, G. von Plessen, J. Feldmann, E.O. Göbel, P. Thomas, K.W. Goossen,
J.M. Kuo, R.F. Kopf, in: International Quantum Electronics Conference, 1994.'
conference:
end_date: 1994-05-13
location: Anaheim, California United States
name: International Quantum Electronics Conference 1994
start_date: 1994-05-08
date_created: 2023-05-01T11:30:06Z
date_updated: 2023-05-01T11:30:09Z
department:
- _id: '293'
extern: '1'
language:
- iso: eng
main_file_link:
- url: https://opg.optica.org/abstract.cfm?uri=IQEC-1994-QMC7
publication: International Quantum Electronics Conference
publication_identifier:
isbn:
- 1-55752-342-8
publication_status: published
status: public
title: Field-induced dynamics of a wave packet in a wide superlattice miniband
type: conference
user_id: '49063'
year: '1994'
...
---
_id: '44279'
abstract:
- lang: eng
text: The strong nonlinear optical response of the 2D exciton in GaAs quantum wells
at relatively low excitation densities has been observed in many experimental
studies in accordance with theoretical predictions. In principle, exciton/exciton
interaction results in a renormalization of the transition matrix elements, dephasing
rates and frequencies of the excitonic states. Wang et al.1 claimed that all experimental
results can be explained by a density- induced enhanced dephasing rate. In a previous
paper,2 we have suggested a density dependent coupling between opposite spin excitons,
which involves all three renormalization phenomena.
article_number: QThB5
author:
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: G.O.
full_name: Smith, G.O.
last_name: Smith
- first_name: E.J.
full_name: Mayer, E.J.
last_name: Mayer
- first_name: J.
full_name: Kuhl, J.
last_name: Kuhl
- first_name: A.
full_name: Schulze, A.
last_name: Schulze
- first_name: D.
full_name: Bennhardt, D.
last_name: Bennhardt
- first_name: S.W.
full_name: Koch, S.W.
last_name: Koch
- first_name: P.
full_name: Thomas, P.
last_name: Thomas
- first_name: R.
full_name: Hey, R.
last_name: Hey
- first_name: K.
full_name: Ploog, K.
last_name: Ploog
citation:
ama: 'Meier T, Smith GO, Mayer EJ, et al. Direct verification of the existence of
biexcitons in GaAs qauntum wells. In: European Quantum Electronics Conference.
; 1994.'
apa: Meier, T., Smith, G. O., Mayer, E. J., Kuhl, J., Schulze, A., Bennhardt, D.,
Koch, S. W., Thomas, P., Hey, R., & Ploog, K. (1994). Direct verification
of the existence of biexcitons in GaAs qauntum wells. European Quantum Electronics
Conference, Article QThB5. European Quantum Electronics Conference 1994, Amsterdam,
Netherlands.
bibtex: '@inproceedings{Meier_Smith_Mayer_Kuhl_Schulze_Bennhardt_Koch_Thomas_Hey_Ploog_1994,
title={Direct verification of the existence of biexcitons in GaAs qauntum wells},
number={QThB5}, booktitle={European Quantum Electronics Conference}, author={Meier,
Torsten and Smith, G.O. and Mayer, E.J. and Kuhl, J. and Schulze, A. and Bennhardt,
D. and Koch, S.W. and Thomas, P. and Hey, R. and Ploog, K.}, year={1994} }'
chicago: Meier, Torsten, G.O. Smith, E.J. Mayer, J. Kuhl, A. Schulze, D. Bennhardt,
S.W. Koch, P. Thomas, R. Hey, and K. Ploog. “Direct Verification of the Existence
of Biexcitons in GaAs Qauntum Wells.” In European Quantum Electronics Conference,
1994.
ieee: T. Meier et al., “Direct verification of the existence of biexcitons
in GaAs qauntum wells,” presented at the European Quantum Electronics Conference
1994, Amsterdam, Netherlands, 1994.
mla: Meier, Torsten, et al. “Direct Verification of the Existence of Biexcitons
in GaAs Qauntum Wells.” European Quantum Electronics Conference, QThB5,
1994.
short: 'T. Meier, G.O. Smith, E.J. Mayer, J. Kuhl, A. Schulze, D. Bennhardt, S.W.
Koch, P. Thomas, R. Hey, K. Ploog, in: European Quantum Electronics Conference,
1994.'
conference:
end_date: 1994-09-02
location: Amsterdam, Netherlands
name: European Quantum Electronics Conference 1994
start_date: 1994-08-28
date_created: 2023-05-01T11:25:13Z
date_updated: 2023-05-01T11:25:17Z
department:
- _id: '293'
extern: '1'
language:
- iso: eng
main_file_link:
- url: https://opg.optica.org/abstract.cfm?uri=EQEC-1994-QThB5
publication: European Quantum Electronics Conference
publication_status: published
status: public
title: Direct verification of the existence of biexcitons in GaAs qauntum wells
type: conference
user_id: '49063'
year: '1994'
...