---
_id: '4044'
abstract:
- lang: eng
  text: A simulation environment for metallic nanostructures based on the Discontinuous
    Galerkin Time Domain method is presented. The model is used to compute the linear
    and nonlinear optical response of split ring resonators and to study physical
    mechanisms that contribute to second harmonic generation.
article_number: C1V89S1P041
article_type: original
author:
- first_name: Yevgen
  full_name: Grynko, Yevgen
  id: '26059'
  last_name: Grynko
- first_name: Jens
  full_name: Förstner, Jens
  id: '158'
  last_name: Förstner
  orcid: 0000-0001-7059-9862
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
citation:
  ama: Grynko Y, Förstner J, Meier T. Application of the discontinous Galerkin time
    domain method to the optics of metallic nanostructures. <i>AAPP | Atti della Accademia
    Peloritana dei Pericolanti</i>. 2011;89(1). doi:<a href="https://doi.org/10.1478/C1V89S1P041">10.1478/C1V89S1P041</a>
  apa: Grynko, Y., Förstner, J., &#38; Meier, T. (2011). Application of the discontinous
    Galerkin time domain method to the optics of metallic nanostructures. <i>AAPP
    | Atti Della Accademia Peloritana Dei Pericolanti</i>, <i>89</i>(1), Article C1V89S1P041.
    <a href="https://doi.org/10.1478/C1V89S1P041">https://doi.org/10.1478/C1V89S1P041</a>
  bibtex: '@article{Grynko_Förstner_Meier_2011, title={Application of the discontinous
    Galerkin time domain method to the optics of metallic nanostructures}, volume={89},
    DOI={<a href="https://doi.org/10.1478/C1V89S1P041">10.1478/C1V89S1P041</a>}, number={1C1V89S1P041},
    journal={AAPP | Atti della Accademia Peloritana dei Pericolanti}, author={Grynko,
    Yevgen and Förstner, Jens and Meier, Torsten}, year={2011} }'
  chicago: Grynko, Yevgen, Jens Förstner, and Torsten Meier. “Application of the Discontinous
    Galerkin Time Domain Method to the Optics of Metallic Nanostructures.” <i>AAPP
    | Atti Della Accademia Peloritana Dei Pericolanti</i> 89, no. 1 (2011). <a href="https://doi.org/10.1478/C1V89S1P041">https://doi.org/10.1478/C1V89S1P041</a>.
  ieee: 'Y. Grynko, J. Förstner, and T. Meier, “Application of the discontinous Galerkin
    time domain method to the optics of metallic nanostructures,” <i>AAPP | Atti della
    Accademia Peloritana dei Pericolanti</i>, vol. 89, no. 1, Art. no. C1V89S1P041,
    2011, doi: <a href="https://doi.org/10.1478/C1V89S1P041">10.1478/C1V89S1P041</a>.'
  mla: Grynko, Yevgen, et al. “Application of the Discontinous Galerkin Time Domain
    Method to the Optics of Metallic Nanostructures.” <i>AAPP | Atti Della Accademia
    Peloritana Dei Pericolanti</i>, vol. 89, no. 1, C1V89S1P041, 2011, doi:<a href="https://doi.org/10.1478/C1V89S1P041">10.1478/C1V89S1P041</a>.
  short: Y. Grynko, J. Förstner, T. Meier, AAPP | Atti Della Accademia Peloritana
    Dei Pericolanti 89 (2011).
date_created: 2018-08-22T10:18:44Z
date_updated: 2025-12-16T11:21:11Z
ddc:
- '530'
department:
- _id: '15'
- _id: '293'
- _id: '170'
- _id: '230'
- _id: '35'
- _id: '34'
- _id: '61'
doi: 10.1478/C1V89S1P041
file:
- access_level: open_access
  content_type: application/pdf
  creator: hclaudia
  date_created: 2018-08-22T10:17:27Z
  date_updated: 2018-09-04T19:11:52Z
  file_id: '4045'
  file_name: 2011 Grynko,Förstner,Meier_Application of the discontinous Galerkin time
    domain method to the optics of metallic nanostructures.pdf
  file_size: 258268
  relation: main_file
file_date_updated: 2018-09-04T19:11:52Z
has_accepted_license: '1'
intvolume: '        89'
issue: '1'
keyword:
- tet_topic_numerics
- tet_topic_shg
- tet_topic_meta
language:
- iso: eng
oa: '1'
publication: AAPP | Atti della Accademia Peloritana dei Pericolanti
publication_identifier:
  issn:
  - 1825-1242
publication_status: published
status: public
title: Application of the discontinous Galerkin time domain method to the optics of
  metallic nanostructures
type: journal_article
urn: '40448'
user_id: '16199'
volume: 89
year: '2011'
...
---
_id: '4091'
abstract:
- lang: eng
  text: 'We present a nonequilibrium ab initio method for calculating nonlinear and
    nonlocal optical effects in metallic slabs with a thickness of several nanometers.
    The numerical analysis is based on the full solution of the time‐dependent Kohn–Sham
    equations for a jellium system and allows to study the optical response of metal
    electrons subject to arbitrarily shaped intense light pulses. We find a strong
    localization of the generated second‐harmonic current in the surface regions of
    the slabs. '
article_type: original
author:
- first_name: Mathias
  full_name: Wand, Mathias
  last_name: Wand
- first_name: Arno
  full_name: Schindlmayr, Arno
  id: '458'
  last_name: Schindlmayr
  orcid: 0000-0002-4855-071X
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
- first_name: Jens
  full_name: Förstner, Jens
  id: '158'
  last_name: Förstner
  orcid: 0000-0001-7059-9862
citation:
  ama: Wand M, Schindlmayr A, Meier T, Förstner J. Simulation of the ultrafast nonlinear
    optical response of metal slabs. <i>Physica Status Solidi B</i>. 2011;248(4):887-891.
    doi:<a href="https://doi.org/10.1002/pssb.201001219">10.1002/pssb.201001219</a>
  apa: Wand, M., Schindlmayr, A., Meier, T., &#38; Förstner, J. (2011). Simulation
    of the ultrafast nonlinear optical response of metal slabs. <i>Physica Status
    Solidi B</i>, <i>248</i>(4), 887–891. <a href="https://doi.org/10.1002/pssb.201001219">https://doi.org/10.1002/pssb.201001219</a>
  bibtex: '@article{Wand_Schindlmayr_Meier_Förstner_2011, title={Simulation of the
    ultrafast nonlinear optical response of metal slabs}, volume={248}, DOI={<a href="https://doi.org/10.1002/pssb.201001219">10.1002/pssb.201001219</a>},
    number={4}, journal={Physica Status Solidi B}, publisher={Wiley-VCH}, author={Wand,
    Mathias and Schindlmayr, Arno and Meier, Torsten and Förstner, Jens}, year={2011},
    pages={887–891} }'
  chicago: 'Wand, Mathias, Arno Schindlmayr, Torsten Meier, and Jens Förstner. “Simulation
    of the Ultrafast Nonlinear Optical Response of Metal Slabs.” <i>Physica Status
    Solidi B</i> 248, no. 4 (2011): 887–91. <a href="https://doi.org/10.1002/pssb.201001219">https://doi.org/10.1002/pssb.201001219</a>.'
  ieee: 'M. Wand, A. Schindlmayr, T. Meier, and J. Förstner, “Simulation of the ultrafast
    nonlinear optical response of metal slabs,” <i>Physica Status Solidi B</i>, vol.
    248, no. 4, pp. 887–891, 2011, doi: <a href="https://doi.org/10.1002/pssb.201001219">10.1002/pssb.201001219</a>.'
  mla: Wand, Mathias, et al. “Simulation of the Ultrafast Nonlinear Optical Response
    of Metal Slabs.” <i>Physica Status Solidi B</i>, vol. 248, no. 4, Wiley-VCH, 2011,
    pp. 887–91, doi:<a href="https://doi.org/10.1002/pssb.201001219">10.1002/pssb.201001219</a>.
  short: M. Wand, A. Schindlmayr, T. Meier, J. Förstner, Physica Status Solidi B 248
    (2011) 887–891.
date_created: 2018-08-23T09:53:38Z
date_updated: 2025-12-16T11:26:04Z
ddc:
- '530'
department:
- _id: '293'
- _id: '230'
- _id: '296'
- _id: '15'
- _id: '170'
- _id: '35'
- _id: '34'
- _id: '61'
doi: 10.1002/pssb.201001219
external_id:
  isi:
  - '000288856300020'
file:
- access_level: closed
  content_type: application/pdf
  creator: hclaudia
  date_created: 2018-08-23T09:55:13Z
  date_updated: 2020-08-30T15:01:30Z
  description: © 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
  file_id: '4092'
  file_name: 2011 Wand,Schindlmayr,Meier,Förstner_Simulation of the ultrafast nonlinear
    optical response of metal slabs.pdf
  file_size: 739579
  relation: main_file
  title: Simulation of the ultrafast optical response of metal slabs
file_date_updated: 2020-08-30T15:01:30Z
has_accepted_license: '1'
intvolume: '       248'
isi: '1'
issue: '4'
keyword:
- tet_topic_shg
language:
- iso: eng
page: 887-891
publication: Physica Status Solidi B
publication_identifier:
  eissn:
  - 1521-3951
  issn:
  - 0370-1972
publication_status: published
publisher: Wiley-VCH
quality_controlled: '1'
status: public
title: Simulation of the ultrafast nonlinear optical response of metal slabs
type: journal_article
user_id: '16199'
volume: 248
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. <i>Ferroelectrics</i>. 2011;419(1):1-8. doi:<a
    href="https://doi.org/10.1080/00150193.2011.594396">10.1080/00150193.2011.594396</a>
  apa: Sanna, S., Berth, G., Hahn, W., Widhalm, A., Zrenner, A., &#38; Schmidt, W.
    G. (2011). Localised Phonon Modes at LiNbO3(0001) Surfaces. <i>Ferroelectrics</i>,
    <i>419</i>(1), 1–8. <a href="https://doi.org/10.1080/00150193.2011.594396">https://doi.org/10.1080/00150193.2011.594396</a>
  bibtex: '@article{Sanna_Berth_Hahn_Widhalm_Zrenner_Schmidt_2011, title={Localised
    Phonon Modes at LiNbO3(0001) Surfaces}, volume={419}, DOI={<a href="https://doi.org/10.1080/00150193.2011.594396">10.1080/00150193.2011.594396</a>},
    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.” <i>Ferroelectrics</i>
    419, no. 1 (2011): 1–8. <a href="https://doi.org/10.1080/00150193.2011.594396">https://doi.org/10.1080/00150193.2011.594396</a>.'
  ieee: 'S. Sanna, G. Berth, W. Hahn, A. Widhalm, A. Zrenner, and W. G. Schmidt, “Localised
    Phonon Modes at LiNbO3(0001) Surfaces,” <i>Ferroelectrics</i>, vol. 419, no. 1,
    pp. 1–8, 2011, doi: <a href="https://doi.org/10.1080/00150193.2011.594396">10.1080/00150193.2011.594396</a>.'
  mla: Sanna, S., et al. “Localised Phonon Modes at LiNbO3(0001) Surfaces.” <i>Ferroelectrics</i>,
    vol. 419, no. 1, Informa UK Limited, 2011, pp. 1–8, doi:<a href="https://doi.org/10.1080/00150193.2011.594396">10.1080/00150193.2011.594396</a>.
  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: '4122'
abstract:
- lang: eng
  text: 'We experimentally and theoretically investigate injection currents generated
    by femtosecond single-color circularly-polarized laser pulses in (110)-oriented
    GaAs quantum wells. The current measurements are performed by detecting the emitted
    Terahertz radiation at room temperature. The microscopic theory is based on a
    14 x 14 k • p band-structure calculation in combination with the multi-subband
    semiconductor Bloch equations. For symmetric GaAs quantum wells grown in (110)
    direction, an oscillatory dependence of the injection currents on the exciting
    photon energy is obtained. The results of the microscopic theory are in good agreement
    with the measurements. '
article_number: 79370U
author:
- first_name: H. T.
  full_name: Duc, H. T.
  last_name: Duc
- first_name: M.
  full_name: Pochwala, M.
  last_name: Pochwala
- first_name: Jens
  full_name: Förstner, Jens
  id: '158'
  last_name: Förstner
  orcid: 0000-0001-7059-9862
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
- first_name: S.
  full_name: Priyadarshi, S.
  last_name: Priyadarshi
- first_name: A. M.
  full_name: Racu, A. M.
  last_name: Racu
- first_name: K.
  full_name: Pierz, K.
  last_name: Pierz
- first_name: U.
  full_name: Siegner, U.
  last_name: Siegner
- first_name: M.
  full_name: Bieler, M.
  last_name: Bieler
citation:
  ama: 'Duc HT, Pochwala M, Förstner J, et al. Injection currents in (110)-oriented
    GaAs/AlGaAs quantum wells: recent progress in theory and experiment. In: Tsen
    K-T, Song J-J, Betz M, Elezzabi AY, eds. <i>Ultrafast Phenomena in Semiconductors
    and Nanostructure Materials XV</i>. Vol 7937. SPIE Proceedings. SPIE; 2011. doi:<a
    href="https://doi.org/10.1117/12.876972">10.1117/12.876972</a>'
  apa: 'Duc, H. T., Pochwala, M., Förstner, J., Meier, T., Priyadarshi, S., Racu,
    A. M., Pierz, K., Siegner, U., &#38; Bieler, M. (2011). Injection currents in
    (110)-oriented GaAs/AlGaAs quantum wells: recent progress in theory and experiment.
    In K.-T. Tsen, J.-J. Song, M. Betz, &#38; A. Y. Elezzabi (Eds.), <i>Ultrafast
    Phenomena in Semiconductors and Nanostructure Materials XV</i> (No. 79370U; Vol.
    7937). SPIE. <a href="https://doi.org/10.1117/12.876972">https://doi.org/10.1117/12.876972</a>'
  bibtex: '@inproceedings{Duc_Pochwala_Förstner_Meier_Priyadarshi_Racu_Pierz_Siegner_Bieler_2011,
    series={SPIE Proceedings}, title={Injection currents in (110)-oriented GaAs/AlGaAs
    quantum wells: recent progress in theory and experiment}, volume={7937}, DOI={<a
    href="https://doi.org/10.1117/12.876972">10.1117/12.876972</a>}, number={79370U},
    booktitle={Ultrafast Phenomena in Semiconductors and Nanostructure Materials XV},
    publisher={SPIE}, author={Duc, H. T. and Pochwala, M. and Förstner, Jens and Meier,
    Torsten and Priyadarshi, S. and Racu, A. M. and Pierz, K. and Siegner, U. and
    Bieler, M.}, editor={Tsen, Kong-Thon and Song, Jin-Joo and Betz, Markus and Elezzabi,
    Abdulhakem Y.}, year={2011}, collection={SPIE Proceedings} }'
  chicago: 'Duc, H. T., M. Pochwala, Jens Förstner, Torsten Meier, S. Priyadarshi,
    A. M. Racu, K. Pierz, U. Siegner, and M. Bieler. “Injection Currents in (110)-Oriented
    GaAs/AlGaAs Quantum Wells: Recent Progress in Theory and Experiment.” In <i>Ultrafast
    Phenomena in Semiconductors and Nanostructure Materials XV</i>, edited by Kong-Thon
    Tsen, Jin-Joo Song, Markus Betz, and Abdulhakem Y. Elezzabi, Vol. 7937. SPIE Proceedings.
    SPIE, 2011. <a href="https://doi.org/10.1117/12.876972">https://doi.org/10.1117/12.876972</a>.'
  ieee: 'H. T. Duc <i>et al.</i>, “Injection currents in (110)-oriented GaAs/AlGaAs
    quantum wells: recent progress in theory and experiment,” in <i>Ultrafast Phenomena
    in Semiconductors and Nanostructure Materials XV</i>, 2011, vol. 7937, doi: <a
    href="https://doi.org/10.1117/12.876972">10.1117/12.876972</a>.'
  mla: 'Duc, H. T., et al. “Injection Currents in (110)-Oriented GaAs/AlGaAs Quantum
    Wells: Recent Progress in Theory and Experiment.” <i>Ultrafast Phenomena in Semiconductors
    and Nanostructure Materials XV</i>, edited by Kong-Thon Tsen et al., vol. 7937,
    79370U, SPIE, 2011, doi:<a href="https://doi.org/10.1117/12.876972">10.1117/12.876972</a>.'
  short: 'H.T. Duc, M. Pochwala, J. Förstner, T. Meier, S. Priyadarshi, A.M. Racu,
    K. Pierz, U. Siegner, M. Bieler, in: K.-T. Tsen, J.-J. Song, M. Betz, A.Y. Elezzabi
    (Eds.), Ultrafast Phenomena in Semiconductors and Nanostructure Materials XV,
    SPIE, 2011.'
date_created: 2018-08-27T09:32:36Z
date_updated: 2025-12-16T11:36:39Z
department:
- _id: '15'
- _id: '293'
- _id: '170'
- _id: '230'
- _id: '35'
- _id: '34'
- _id: '61'
doi: 10.1117/12.876972
editor:
- first_name: Kong-Thon
  full_name: Tsen, Kong-Thon
  last_name: Tsen
- first_name: Jin-Joo
  full_name: Song, Jin-Joo
  last_name: Song
- first_name: Markus
  full_name: Betz, Markus
  last_name: Betz
- first_name: Abdulhakem Y.
  full_name: Elezzabi, Abdulhakem Y.
  last_name: Elezzabi
intvolume: '      7937'
keyword:
- tet_topic_qw
language:
- iso: eng
publication: Ultrafast Phenomena in Semiconductors and Nanostructure Materials XV
publication_status: published
publisher: SPIE
series_title: SPIE Proceedings
status: public
title: 'Injection currents in (110)-oriented GaAs/AlGaAs quantum wells: recent progress
  in theory and experiment'
type: conference
user_id: '16199'
volume: 7937
year: '2011'
...
---
_id: '4046'
abstract:
- lang: eng
  text: "We demonstrate by spin quantum beat spectroscopy that in undoped symmetric
    (110)-oriented GaAs/AlGaAs\r\nsingle quantum wells, even a symmetric spatial envelope
    wave function gives rise to an asymmetric in-plane\r\nelectron Land´e g-factor.
    The anisotropy is neither a direct consequence of the asymmetric in-plane Dresselhaus\r\nsplitting
    nor a direct consequence of the asymmetric Zeeman splitting of the hole bands,
    but rather it is a pure\r\nhigher-order effect that exists as well for diamond-type
    lattices. The measurements for various well widths are\r\nvery well described
    within 14 × 14 band k·p theory and illustrate that the electron spin is an excellent
    meter\r\nvariable for mapping out the internal—otherwise hidden—symmetries in
    two-dimensional systems. Fourth-order\r\nperturbation theory yields an analytical
    expression for the strength of the g-factor anisotropy, providing a\r\nqualitative
    understanding of the observed effects."
article_type: original
author:
- first_name: J.
  full_name: Hübner, J.
  last_name: Hübner
- first_name: S.
  full_name: Kunz, S.
  last_name: Kunz
- first_name: S.
  full_name: Oertel, S.
  last_name: Oertel
- first_name: D.
  full_name: Schuh, D.
  last_name: Schuh
- first_name: M.
  full_name: Pochwała, M.
  last_name: Pochwała
- first_name: H. T.
  full_name: Duc, H. T.
  last_name: Duc
- first_name: Jens
  full_name: Förstner, Jens
  id: '158'
  last_name: Förstner
  orcid: 0000-0001-7059-9862
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
- first_name: M.
  full_name: Oestreich, M.
  last_name: Oestreich
citation:
  ama: Hübner J, Kunz S, Oertel S, et al. Electron g-factor anisotropy in symmetric
    (110)-oriented GaAs quantum wells. <i>Physical Review B</i>. 2011;84(4):041301(R).
    doi:<a href="https://doi.org/10.1103/physrevb.84.041301">10.1103/physrevb.84.041301</a>
  apa: Hübner, J., Kunz, S., Oertel, S., Schuh, D., Pochwała, M., Duc, H. T., Förstner,
    J., Meier, T., &#38; Oestreich, M. (2011). Electron g-factor anisotropy in symmetric
    (110)-oriented GaAs quantum wells. <i>Physical Review B</i>, <i>84</i>(4), 041301(R).
    <a href="https://doi.org/10.1103/physrevb.84.041301">https://doi.org/10.1103/physrevb.84.041301</a>
  bibtex: '@article{Hübner_Kunz_Oertel_Schuh_Pochwała_Duc_Förstner_Meier_Oestreich_2011,
    title={Electron g-factor anisotropy in symmetric (110)-oriented GaAs quantum wells},
    volume={84}, DOI={<a href="https://doi.org/10.1103/physrevb.84.041301">10.1103/physrevb.84.041301</a>},
    number={4}, journal={Physical Review B}, publisher={American Physical Society
    (APS)}, author={Hübner, J. and Kunz, S. and Oertel, S. and Schuh, D. and Pochwała,
    M. and Duc, H. T. and Förstner, Jens and Meier, Torsten and Oestreich, M.}, year={2011},
    pages={041301(R)} }'
  chicago: 'Hübner, J., S. Kunz, S. Oertel, D. Schuh, M. Pochwała, H. T. Duc, Jens
    Förstner, Torsten Meier, and M. Oestreich. “Electron G-Factor Anisotropy in Symmetric
    (110)-Oriented GaAs Quantum Wells.” <i>Physical Review B</i> 84, no. 4 (2011):
    041301(R). <a href="https://doi.org/10.1103/physrevb.84.041301">https://doi.org/10.1103/physrevb.84.041301</a>.'
  ieee: 'J. Hübner <i>et al.</i>, “Electron g-factor anisotropy in symmetric (110)-oriented
    GaAs quantum wells,” <i>Physical Review B</i>, vol. 84, no. 4, p. 041301(R), 2011,
    doi: <a href="https://doi.org/10.1103/physrevb.84.041301">10.1103/physrevb.84.041301</a>.'
  mla: Hübner, J., et al. “Electron G-Factor Anisotropy in Symmetric (110)-Oriented
    GaAs Quantum Wells.” <i>Physical Review B</i>, vol. 84, no. 4, American Physical
    Society (APS), 2011, p. 041301(R), doi:<a href="https://doi.org/10.1103/physrevb.84.041301">10.1103/physrevb.84.041301</a>.
  short: J. Hübner, S. Kunz, S. Oertel, D. Schuh, M. Pochwała, H.T. Duc, J. Förstner,
    T. Meier, M. Oestreich, Physical Review B 84 (2011) 041301(R).
date_created: 2018-08-22T10:20:23Z
date_updated: 2025-12-16T16:19:20Z
ddc:
- '530'
department:
- _id: '15'
- _id: '293'
- _id: '170'
- _id: '230'
- _id: '35'
- _id: '34'
- _id: '61'
doi: 10.1103/physrevb.84.041301
file:
- access_level: open_access
  content_type: application/pdf
  creator: hclaudia
  date_created: 2018-08-22T10:22:40Z
  date_updated: 2018-09-04T19:28:55Z
  file_id: '4047'
  file_name: 2011 Hübner,Kunz,Örtel,Schuh,Pochwala,Duc,Förstner,Meier,Östreich_Electron
    g -factor anisotropy in symmetric (110)-oriented GaAs quantum wells.pdf
  file_size: 339595
  relation: main_file
file_date_updated: 2018-09-04T19:28:55Z
has_accepted_license: '1'
intvolume: '        84'
issue: '4'
keyword:
- tet_topic_qw
language:
- iso: eng
oa: '1'
page: 041301(R)
publication: Physical Review B
publication_identifier:
  issn:
  - 1098-0121
  - 1550-235X
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Electron g-factor anisotropy in symmetric (110)-oriented GaAs quantum wells
type: journal_article
urn: '40467'
user_id: '16199'
volume: 84
year: '2011'
...
---
_id: '43202'
abstract:
- lang: eng
  text: For numerous applications, the computation and provision of exact derivative
    information plays an important role for optimizing the considered system. This
    paper introduces the technique of algorithmic differentiation, a method to compute
    derivatives of arbitrary order within working precision. This derivative information
    will be combined with a calculus-based optimization algorithm to optimize a non-trivially
    shaped laser pulse which coherently steers the electron dynamics in a semiconductor
    quantum wire. Numerical results illustrating the cost for the derivative computation
    and the optimization process are presented and discussed.
author:
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
- first_name: Matthias
  full_name: Reichelt, Matthias
  id: '138'
  last_name: Reichelt
- first_name: A.
  full_name: Walther, A.
  last_name: Walther
citation:
  ama: Meier T, Reichelt M, Walther A. Calculus-based optimization of the electron
    dynamics in nanostructures. <i>Photonics and Nanostructures - Fundamentals and
    Applications</i>. 2011;9(4):328-336. doi:<a href="https://doi.org/10.1016/j.photonics.2011.03.006">10.1016/j.photonics.2011.03.006</a>
  apa: Meier, T., Reichelt, M., &#38; Walther, A. (2011). Calculus-based optimization
    of the electron dynamics in nanostructures. <i>Photonics and Nanostructures -
    Fundamentals and Applications</i>, <i>9</i>(4), 328–336. <a href="https://doi.org/10.1016/j.photonics.2011.03.006">https://doi.org/10.1016/j.photonics.2011.03.006</a>
  bibtex: '@article{Meier_Reichelt_Walther_2011, title={Calculus-based optimization
    of the electron dynamics in nanostructures}, volume={9}, DOI={<a href="https://doi.org/10.1016/j.photonics.2011.03.006">10.1016/j.photonics.2011.03.006</a>},
    number={4}, journal={Photonics and Nanostructures - Fundamentals and Applications},
    publisher={Elsevier}, author={Meier, Torsten and Reichelt, Matthias and Walther,
    A.}, year={2011}, pages={328–336} }'
  chicago: 'Meier, Torsten, Matthias Reichelt, and A. Walther. “Calculus-Based Optimization
    of the Electron Dynamics in Nanostructures.” <i>Photonics and Nanostructures -
    Fundamentals and Applications</i> 9, no. 4 (2011): 328–36. <a href="https://doi.org/10.1016/j.photonics.2011.03.006">https://doi.org/10.1016/j.photonics.2011.03.006</a>.'
  ieee: 'T. Meier, M. Reichelt, and A. Walther, “Calculus-based optimization of the
    electron dynamics in nanostructures,” <i>Photonics and Nanostructures - Fundamentals
    and Applications</i>, vol. 9, no. 4, pp. 328–336, 2011, doi: <a href="https://doi.org/10.1016/j.photonics.2011.03.006">10.1016/j.photonics.2011.03.006</a>.'
  mla: Meier, Torsten, et al. “Calculus-Based Optimization of the Electron Dynamics
    in Nanostructures.” <i>Photonics and Nanostructures - Fundamentals and Applications</i>,
    vol. 9, no. 4, Elsevier, 2011, pp. 328–36, doi:<a href="https://doi.org/10.1016/j.photonics.2011.03.006">10.1016/j.photonics.2011.03.006</a>.
  short: T. Meier, M. Reichelt, A. Walther, Photonics and Nanostructures - Fundamentals
    and Applications 9 (2011) 328–336.
date_created: 2023-03-29T21:25:40Z
date_updated: 2025-12-16T16:49:08Z
department:
- _id: '293'
- _id: '35'
- _id: '15'
- _id: '170'
- _id: '230'
doi: 10.1016/j.photonics.2011.03.006
intvolume: '         9'
issue: '4'
language:
- iso: eng
page: 328-336
publication: Photonics and Nanostructures - Fundamentals and Applications
publication_status: published
publisher: Elsevier
status: public
title: Calculus-based optimization of the electron dynamics in nanostructures
type: journal_article
user_id: '16199'
volume: 9
year: '2011'
...
---
_id: '43260'
author:
- first_name: J.
  full_name: Güdde, J.
  last_name: Güdde
- first_name: M.
  full_name: Rohleder, M.
  last_name: Rohleder
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
- first_name: S.W.
  full_name: Koch, S.W.
  last_name: Koch
- first_name: U.
  full_name: Höfer, U.
  last_name: Höfer
citation:
  ama: 'Güdde J, Rohleder M, Meier T, Koch SW, Höfer U. Coherently controlled electrical
    currents at surfaces. In: Bovensiepen U, Petek H, Wolf M, eds. <i>Dynamics at
    Solid State Surfaces and Interfaces</i>. Vol 1. Current Developments. Wiley‐VCH
    Verlag; 2010:579-591. doi:<a href="https://doi.org/10.1002/9783527633418.ch24">10.1002/9783527633418.ch24</a>'
  apa: Güdde, J., Rohleder, M., Meier, T., Koch, S. W., &#38; Höfer, U. (2010). Coherently
    controlled electrical currents at surfaces. In U. Bovensiepen, H. Petek, &#38;
    M. Wolf (Eds.), <i>Dynamics at Solid State Surfaces and Interfaces</i> (Vol. 1,
    pp. 579–591). Wiley‐VCH Verlag. <a href="https://doi.org/10.1002/9783527633418.ch24">https://doi.org/10.1002/9783527633418.ch24</a>
  bibtex: '@inbook{Güdde_Rohleder_Meier_Koch_Höfer_2010, place={Weinheim}, series={Current
    Developments}, title={Coherently controlled electrical currents at surfaces},
    volume={1}, DOI={<a href="https://doi.org/10.1002/9783527633418.ch24">10.1002/9783527633418.ch24</a>},
    booktitle={Dynamics at Solid State Surfaces and Interfaces}, publisher={Wiley‐VCH
    Verlag}, author={Güdde, J. and Rohleder, M. and Meier, Torsten and Koch, S.W.
    and Höfer, U.}, editor={Bovensiepen, U. and Petek, H. and Wolf, M.}, year={2010},
    pages={579–591}, collection={Current Developments} }'
  chicago: 'Güdde, J., M. Rohleder, Torsten Meier, S.W. Koch, and U. Höfer. “Coherently
    Controlled Electrical Currents at Surfaces.” In <i>Dynamics at Solid State Surfaces
    and Interfaces</i>, edited by U. Bovensiepen, H. Petek, and M. Wolf, 1:579–91.
    Current Developments. Weinheim: Wiley‐VCH Verlag, 2010. <a href="https://doi.org/10.1002/9783527633418.ch24">https://doi.org/10.1002/9783527633418.ch24</a>.'
  ieee: 'J. Güdde, M. Rohleder, T. Meier, S. W. Koch, and U. Höfer, “Coherently controlled
    electrical currents at surfaces,” in <i>Dynamics at Solid State Surfaces and Interfaces</i>,
    vol. 1, U. Bovensiepen, H. Petek, and M. Wolf, Eds. Weinheim: Wiley‐VCH Verlag,
    2010, pp. 579–591.'
  mla: Güdde, J., et al. “Coherently Controlled Electrical Currents at Surfaces.”
    <i>Dynamics at Solid State Surfaces and Interfaces</i>, edited by U. Bovensiepen
    et al., vol. 1, Wiley‐VCH Verlag, 2010, pp. 579–91, doi:<a href="https://doi.org/10.1002/9783527633418.ch24">10.1002/9783527633418.ch24</a>.
  short: 'J. Güdde, M. Rohleder, T. Meier, S.W. Koch, U. Höfer, in: U. Bovensiepen,
    H. Petek, M. Wolf (Eds.), Dynamics at Solid State Surfaces and Interfaces, Wiley‐VCH
    Verlag, Weinheim, 2010, pp. 579–591.'
date_created: 2023-04-01T21:30:57Z
date_updated: 2023-04-01T21:31:08Z
department:
- _id: '293'
doi: 10.1002/9783527633418.ch24
editor:
- first_name: U.
  full_name: Bovensiepen, U.
  last_name: Bovensiepen
- first_name: H.
  full_name: Petek, H.
  last_name: Petek
- first_name: M.
  full_name: Wolf, M.
  last_name: Wolf
intvolume: '         1'
language:
- iso: eng
main_file_link:
- url: https://onlinelibrary.wiley.com/doi/10.1002/9783527633418.ch24
page: 579-591
place: Weinheim
publication: Dynamics at Solid State Surfaces and Interfaces
publication_status: published
publisher: Wiley‐VCH Verlag
series_title: Current Developments
status: public
title: Coherently controlled electrical currents at surfaces
type: book_chapter
user_id: '49063'
volume: 1
year: '2010'
...
---
_id: '4127'
abstract:
- lang: eng
  text: "The dynamics of charge and spin injection currents excited by circularly
    polarized, one-color laser beams in\r\nsemiconductor quantum wells is analyzed.
    Our microscopic approach is based on a 14x14 k · p band-structure\r\ntheory in
    combination with multisubband semiconductor Bloch equations which allows a detailed
    analysis of\r\nthe photogenerated carrier distributions and coherences in k space.
    Charge and spin injection currents are\r\nnumerically calculated for [110]- and
    [001]-grown GaAs quantum wells including dc population contributions\r\nand ac
    contributions that arise from intersubband coherences. The dependencies of the
    injection currents on the\r\nexcitation conditions, in particular, the photon
    energy are computed and discussed."
article_number: '115316'
article_type: original
author:
- first_name: Huynh Thanh
  full_name: Duc, Huynh Thanh
  last_name: Duc
- first_name: Jens
  full_name: Förstner, Jens
  id: '158'
  last_name: Förstner
  orcid: 0000-0001-7059-9862
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
citation:
  ama: Duc HT, Förstner J, Meier T. Microscopic analysis of charge and spin photocurrents
    injected by circularly polarized one-color laser pulses in GaAs quantum wells.
    <i>Physical Review B</i>. 2010;82(11). doi:<a href="https://doi.org/10.1103/physrevb.82.115316">10.1103/physrevb.82.115316</a>
  apa: Duc, H. T., Förstner, J., &#38; Meier, T. (2010). Microscopic analysis of charge
    and spin photocurrents injected by circularly polarized one-color laser pulses
    in GaAs quantum wells. <i>Physical Review B</i>, <i>82</i>(11), Article 115316.
    <a href="https://doi.org/10.1103/physrevb.82.115316">https://doi.org/10.1103/physrevb.82.115316</a>
  bibtex: '@article{Duc_Förstner_Meier_2010, title={Microscopic analysis of charge
    and spin photocurrents injected by circularly polarized one-color laser pulses
    in GaAs quantum wells}, volume={82}, DOI={<a href="https://doi.org/10.1103/physrevb.82.115316">10.1103/physrevb.82.115316</a>},
    number={11115316}, journal={Physical Review B}, publisher={American Physical Society
    (APS)}, author={Duc, Huynh Thanh and Förstner, Jens and Meier, Torsten}, year={2010}
    }'
  chicago: Duc, Huynh Thanh, Jens Förstner, and Torsten Meier. “Microscopic Analysis
    of Charge and Spin Photocurrents Injected by Circularly Polarized One-Color Laser
    Pulses in GaAs Quantum Wells.” <i>Physical Review B</i> 82, no. 11 (2010). <a
    href="https://doi.org/10.1103/physrevb.82.115316">https://doi.org/10.1103/physrevb.82.115316</a>.
  ieee: 'H. T. Duc, J. Förstner, and T. Meier, “Microscopic analysis of charge and
    spin photocurrents injected by circularly polarized one-color laser pulses in
    GaAs quantum wells,” <i>Physical Review B</i>, vol. 82, no. 11, Art. no. 115316,
    2010, doi: <a href="https://doi.org/10.1103/physrevb.82.115316">10.1103/physrevb.82.115316</a>.'
  mla: Duc, Huynh Thanh, et al. “Microscopic Analysis of Charge and Spin Photocurrents
    Injected by Circularly Polarized One-Color Laser Pulses in GaAs Quantum Wells.”
    <i>Physical Review B</i>, vol. 82, no. 11, 115316, American Physical Society (APS),
    2010, doi:<a href="https://doi.org/10.1103/physrevb.82.115316">10.1103/physrevb.82.115316</a>.
  short: H.T. Duc, J. Förstner, T. Meier, Physical Review B 82 (2010).
date_created: 2018-08-27T10:25:36Z
date_updated: 2023-04-19T11:11:47Z
ddc:
- '530'
department:
- _id: '15'
- _id: '230'
- _id: '293'
- _id: '170'
doi: 10.1103/physrevb.82.115316
file:
- access_level: closed
  content_type: application/pdf
  creator: hclaudia
  date_created: 2018-08-27T10:27:00Z
  date_updated: 2018-08-27T10:27:00Z
  file_id: '4128'
  file_name: 2010 Duc,Förstner,Meier_Microscopic analysis of charge and spin photocurrents
    injected by circularly polarized one-color laser pulses in GaAs quantum wells.pdf
  file_size: 639662
  relation: main_file
  success: 1
file_date_updated: 2018-08-27T10:27:00Z
has_accepted_license: '1'
intvolume: '        82'
issue: '11'
keyword:
- tet_topic_qw
language:
- iso: eng
publication: Physical Review B
publication_identifier:
  issn:
  - 1098-0121
  - 1550-235X
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Microscopic analysis of charge and spin photocurrents injected by circularly
  polarized one-color laser pulses in GaAs quantum wells
type: journal_article
user_id: '49063'
volume: 82
year: '2010'
...
---
_id: '43261'
abstract:
- lang: eng
  text: We report the development of an experimental technique to measure the dynamics
    of electrical currents on the femtosecond timescale. The technique combines methods
    of coherent control with time- and angle-resolved photoelectron spectroscopy.
    Direct snapshots of the momentum distribution of the excited electrons as function
    of time are then determined by photoelectron spectroscopy. In this way we gain
    information on the generation and decay of ultrashort current pulses in unprecedented
    detail. In particular, this technique allows the observation of elastic electron
    scattering in terms of an incoherent population dynamics in momentum space. We
    have applied this optical current generation and detection scheme to electrons
    in so-called image-potential states which represent a prototype of two-dimensional
    electronic surface states. Electrons in these states are bound perpendicular to
    the metal surface by the Coulombic image potential whereas they can move almost
    freely parallel to the surface. For the (n=1) image-potential state of Cu(100)
    we find a decay time of 10 fs due to electron scattering with steps and surface
    defects.
article_number: 76001K
author:
- first_name: J.
  full_name: Güdde, J.
  last_name: Güdde
- first_name: M.
  full_name: Rohleder, M.
  last_name: Rohleder
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
- first_name: S.W.
  full_name: Koch, S.W.
  last_name: Koch
- first_name: U.
  full_name: Höfer, U.
  last_name: Höfer
citation:
  ama: 'Güdde J, Rohleder M, Meier T, Koch SW, Höfer U. Ultrafast coherent control
    of electric currents at metal surfaces. In: Song J-J, Tsen K-T, Betz M, Y. Elezzabi
    A, eds. <i>Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIV</i>.
    Vol 7600. SPIE Proceedings. SPIE; 2010. doi:<a href="https://doi.org/10.1117/12.839672">10.1117/12.839672</a>'
  apa: Güdde, J., Rohleder, M., Meier, T., Koch, S. W., &#38; Höfer, U. (2010). Ultrafast
    coherent control of electric currents at metal surfaces. In J.-J. Song, K.-T.
    Tsen, M. Betz, &#38; A. Y. Elezzabi (Eds.), <i>Ultrafast Phenomena in Semiconductors
    and Nanostructure Materials XIV</i> (No. 76001K; Vol. 7600). SPIE. <a href="https://doi.org/10.1117/12.839672">https://doi.org/10.1117/12.839672</a>
  bibtex: '@inproceedings{Güdde_Rohleder_Meier_Koch_Höfer_2010, series={SPIE Proceedings},
    title={Ultrafast coherent control of electric currents at metal surfaces}, volume={7600},
    DOI={<a href="https://doi.org/10.1117/12.839672">10.1117/12.839672</a>}, number={76001K},
    booktitle={Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIV},
    publisher={SPIE}, author={Güdde, J. and Rohleder, M. and Meier, Torsten and Koch,
    S.W. and Höfer, U.}, editor={Song, Jin-Joo and Tsen, Kong-Thon and Betz, Markus
    and Y. Elezzabi, Abdulhakem}, year={2010}, collection={SPIE Proceedings} }'
  chicago: Güdde, J., M. Rohleder, Torsten Meier, S.W. Koch, and U. Höfer. “Ultrafast
    Coherent Control of Electric Currents at Metal Surfaces.” In <i>Ultrafast Phenomena
    in Semiconductors and Nanostructure Materials XIV</i>, edited by Jin-Joo Song,
    Kong-Thon Tsen, Markus Betz, and Abdulhakem Y. Elezzabi, Vol. 7600. SPIE Proceedings.
    SPIE, 2010. <a href="https://doi.org/10.1117/12.839672">https://doi.org/10.1117/12.839672</a>.
  ieee: 'J. Güdde, M. Rohleder, T. Meier, S. W. Koch, and U. Höfer, “Ultrafast coherent
    control of electric currents at metal surfaces,” in <i>Ultrafast Phenomena in
    Semiconductors and Nanostructure Materials XIV</i>, 2010, vol. 7600, doi: <a href="https://doi.org/10.1117/12.839672">10.1117/12.839672</a>.'
  mla: Güdde, J., et al. “Ultrafast Coherent Control of Electric Currents at Metal
    Surfaces.” <i>Ultrafast Phenomena in Semiconductors and Nanostructure Materials
    XIV</i>, edited by Jin-Joo Song et al., vol. 7600, 76001K, SPIE, 2010, doi:<a
    href="https://doi.org/10.1117/12.839672">10.1117/12.839672</a>.
  short: 'J. Güdde, M. Rohleder, T. Meier, S.W. Koch, U. Höfer, in: J.-J. Song, K.-T.
    Tsen, M. Betz, A. Y. Elezzabi (Eds.), Ultrafast Phenomena in Semiconductors and
    Nanostructure Materials XIV, SPIE, 2010.'
date_created: 2023-04-01T21:37:05Z
date_updated: 2023-04-19T11:10:38Z
department:
- _id: '293'
doi: 10.1117/12.839672
editor:
- first_name: Jin-Joo
  full_name: Song, Jin-Joo
  last_name: Song
- first_name: Kong-Thon
  full_name: Tsen, Kong-Thon
  last_name: Tsen
- first_name: Markus
  full_name: Betz, Markus
  last_name: Betz
- first_name: Abdulhakem
  full_name: Y. Elezzabi, Abdulhakem
  last_name: Y. Elezzabi
intvolume: '      7600'
language:
- iso: eng
main_file_link:
- url: https://spie.org/Publications/Proceedings/Paper/10.1117/12.839672
publication: Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIV
publication_status: published
publisher: SPIE
series_title: SPIE Proceedings
status: public
title: Ultrafast coherent control of electric currents at metal surfaces
type: conference
user_id: '49063'
volume: 7600
year: '2010'
...
---
_id: '4176'
abstract:
- lang: eng
  text: A microscopic theory that describes injection currents in GaAs quantum wells
    is presented. 14 × 14 band k.p theory is used to compute the band structure including
    anisotropy and spin-orbit interaction. Transient injection currents are obtained
    via numerical solutions of the semiconductor Bloch equations. Depending on the
    growth direction of the considered quantum well system and the propagation and
    polarization directions of the incident light beam, it is possible to generate
    charge and/or spin photocurrents on ultrashort time scales. The dependence of
    the photocurrents on the excitation conditions is computed and discussed.
author:
- first_name: Huynh Thanh
  full_name: Duc, Huynh Thanh
  last_name: Duc
- first_name: Jens
  full_name: Förstner, Jens
  id: '158'
  last_name: Förstner
  orcid: 0000-0001-7059-9862
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
citation:
  ama: 'Duc HT, Förstner J, Meier T. Microscopic theoretical analysis of optically
    generated injection currents in semiconductor quantum wells. In: Song J-J, Tsen
    K-T, Betz M, Elezzabi AY, eds. <i>Ultrafast Phenomena in Semiconductors and Nanostructure
    Materials XIV</i>. Vol 7600. SPIE Proceedings. SPIE; 2010:76000S-76000S - 9. doi:<a
    href="https://doi.org/10.1117/12.840388">10.1117/12.840388</a>'
  apa: Duc, H. T., Förstner, J., &#38; Meier, T. (2010). Microscopic theoretical analysis
    of optically generated injection currents in semiconductor quantum wells. In J.-J.
    Song, K.-T. Tsen, M. Betz, &#38; A. Y. Elezzabi (Eds.), <i>Ultrafast Phenomena
    in Semiconductors and Nanostructure Materials XIV</i> (Vol. 7600, pp. 76000S-76000S
    – 9). SPIE. <a href="https://doi.org/10.1117/12.840388">https://doi.org/10.1117/12.840388</a>
  bibtex: '@inproceedings{Duc_Förstner_Meier_2010, series={SPIE Proceedings}, title={Microscopic
    theoretical analysis of optically generated injection currents in semiconductor
    quantum wells}, volume={7600}, DOI={<a href="https://doi.org/10.1117/12.840388">10.1117/12.840388</a>},
    booktitle={Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIV},
    publisher={SPIE}, author={Duc, Huynh Thanh and Förstner, Jens and Meier, Torsten},
    editor={Song, Jin-Joo and Tsen, Kong-Thon and Betz, Markus and Elezzabi, Abdulhakem
    Y.}, year={2010}, pages={76000S-76000S–9}, collection={SPIE Proceedings} }'
  chicago: Duc, Huynh Thanh, Jens Förstner, and Torsten Meier. “Microscopic Theoretical
    Analysis of Optically Generated Injection Currents in Semiconductor Quantum Wells.”
    In <i>Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIV</i>,
    edited by Jin-Joo Song, Kong-Thon Tsen, Markus Betz, and Abdulhakem Y. Elezzabi,
    7600:76000S-76000S – 9. SPIE Proceedings. SPIE, 2010. <a href="https://doi.org/10.1117/12.840388">https://doi.org/10.1117/12.840388</a>.
  ieee: 'H. T. Duc, J. Förstner, and T. Meier, “Microscopic theoretical analysis of
    optically generated injection currents in semiconductor quantum wells,” in <i>Ultrafast
    Phenomena in Semiconductors and Nanostructure Materials XIV</i>, 2010, vol. 7600,
    pp. 76000S-76000S–9, doi: <a href="https://doi.org/10.1117/12.840388">10.1117/12.840388</a>.'
  mla: Duc, Huynh Thanh, et al. “Microscopic Theoretical Analysis of Optically Generated
    Injection Currents in Semiconductor Quantum Wells.” <i>Ultrafast Phenomena in
    Semiconductors and Nanostructure Materials XIV</i>, edited by Jin-Joo Song et
    al., vol. 7600, SPIE, 2010, pp. 76000S-76000S – 9, doi:<a href="https://doi.org/10.1117/12.840388">10.1117/12.840388</a>.
  short: 'H.T. Duc, J. Förstner, T. Meier, in: J.-J. Song, K.-T. Tsen, M. Betz, A.Y.
    Elezzabi (Eds.), Ultrafast Phenomena in Semiconductors and Nanostructure Materials
    XIV, SPIE, 2010, pp. 76000S-76000S–9.'
date_created: 2018-08-28T09:00:53Z
date_updated: 2023-04-19T11:07:47Z
department:
- _id: '15'
- _id: '293'
- _id: '170'
- _id: '230'
doi: 10.1117/12.840388
editor:
- first_name: Jin-Joo
  full_name: Song, Jin-Joo
  last_name: Song
- first_name: Kong-Thon
  full_name: Tsen, Kong-Thon
  last_name: Tsen
- first_name: Markus
  full_name: Betz, Markus
  last_name: Betz
- first_name: Abdulhakem Y.
  full_name: Elezzabi, Abdulhakem Y.
  last_name: Elezzabi
intvolume: '      7600'
keyword:
- tet_topic_qw
language:
- iso: eng
page: 76000S-76000S-9
publication: Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIV
publication_status: published
publisher: SPIE
series_title: SPIE Proceedings
status: public
title: Microscopic theoretical analysis of optically generated injection currents
  in semiconductor quantum wells
type: conference
user_id: '49063'
volume: 7600
year: '2010'
...
---
_id: '44063'
abstract:
- lang: eng
  text: We present an analysis of the coupling between photonic crystal cavities in
    different geometries. Inline‐, side‐ and angle‐coupled L3‐geometries are investigated
    numerically in three dimensions. Asymmetric mode splitting of the fundamental
    mode for the L3‐cavity is shown for all geometrical setups evidencing for strong
    cavity‐cavity interactions. The coupling efficiency for the fundamental mode is
    shown to be best for a 30° angle between the cavity‐centers due to the direction
    of in‐plane leackage out of the cavites.
article_number: 46-48
author:
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
- first_name: S.
  full_name: Declair, S.
  last_name: Declair
- first_name: J.
  full_name: Förstner, J.
  last_name: Förstner
citation:
  ama: Meier T, Declair S, Förstner J. Numerical Analysis of Coupled Photonic Crystal
    Cavities. <i>AIP Conference Proceedings</i>. 2010;1291(46). doi:<a href="https://doi.org/10.1063/1.3506125">10.1063/1.3506125</a>
  apa: Meier, T., Declair, S., &#38; Förstner, J. (2010). Numerical Analysis of Coupled
    Photonic Crystal Cavities. <i>AIP Conference Proceedings</i>, <i>1291</i>(46),
    Article 46–48. <a href="https://doi.org/10.1063/1.3506125">https://doi.org/10.1063/1.3506125</a>
  bibtex: '@article{Meier_Declair_Förstner_2010, title={Numerical Analysis of Coupled
    Photonic Crystal Cavities}, volume={1291}, DOI={<a href="https://doi.org/10.1063/1.3506125">10.1063/1.3506125</a>},
    number={4646–48}, journal={AIP Conference Proceedings}, publisher={American Institute
    of Physics}, author={Meier, Torsten and Declair, S. and Förstner, J.}, year={2010}
    }'
  chicago: Meier, Torsten, S. Declair, and J. Förstner. “Numerical Analysis of Coupled
    Photonic Crystal Cavities.” <i>AIP Conference Proceedings</i> 1291, no. 46 (2010).
    <a href="https://doi.org/10.1063/1.3506125">https://doi.org/10.1063/1.3506125</a>.
  ieee: 'T. Meier, S. Declair, and J. Förstner, “Numerical Analysis of Coupled Photonic
    Crystal Cavities,” <i>AIP Conference Proceedings</i>, vol. 1291, no. 46, Art.
    no. 46–48, 2010, doi: <a href="https://doi.org/10.1063/1.3506125">10.1063/1.3506125</a>.'
  mla: Meier, Torsten, et al. “Numerical Analysis of Coupled Photonic Crystal Cavities.”
    <i>AIP Conference Proceedings</i>, vol. 1291, no. 46, 46–48, American Institute
    of Physics, 2010, doi:<a href="https://doi.org/10.1063/1.3506125">10.1063/1.3506125</a>.
  short: T. Meier, S. Declair, J. Förstner, AIP Conference Proceedings 1291 (2010).
date_created: 2023-04-19T10:57:09Z
date_updated: 2023-04-19T10:57:12Z
department:
- _id: '293'
doi: 10.1063/1.3506125
intvolume: '      1291'
issue: '46 '
language:
- iso: eng
main_file_link:
- url: https://aip.scitation.org/doi/abs/10.1063/1.3506125
publication: AIP Conference Proceedings
publication_status: published
publisher: American Institute of Physics
status: public
title: Numerical Analysis of Coupled Photonic Crystal Cavities
type: journal_article
user_id: '49063'
volume: 1291
year: '2010'
...
---
_id: '24980'
abstract:
- lang: eng
  text: We discuss transport and localization properties on the insulating side of
    the disorder dominated superconductor-insulator transition, described in terms
    of the dirty boson model. Analyzing the spectral properties of the interacting
    bosons in the absence of phonons, we argue that the Bose glass phase admits three
    distinct regimes. For strongest disorder the boson system is a fully localized,
    perfect insulator at any temperature. At smaller disorder, only the low temperature
    phase exhibits perfect insulation while delocalization takes place above a finite
    temperature. We argue that a third phase must intervene between these perfect
    insulators and the superconductor. This conducting Bose glass phase is characterized
    by a mobility edge in the many body spectrum, located at finite energy above the
    ground state. In this insulating regime purely electronically activated transport
    occurs, with a conductivity following an Arrhenius law at asymptotically low temperatures,
    while a tendency to superactivation is predicted at higher T. These predictions
    are in good agreement with recent transport experiments in highly disordered films
    of superconducting materials.
author:
- first_name: N.
  full_name: Gögh, N.
  last_name: Gögh
- first_name: P.
  full_name: Thomas, P.
  last_name: Thomas
- first_name: I.
  full_name: Kuznetsova, I.
  last_name: Kuznetsova
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
- first_name: I.
  full_name: Varga, I.
  last_name: Varga
citation:
  ama: 'Gögh N, Thomas P, Kuznetsova I, Meier T, Varga I. Localization of excitons
    in weakly disordered semiconductor structures: A model study. <i>Annalen der Physik</i>.
    2010;18(12):905-909. doi:<a href="https://doi.org/10.1002/andp.20095211219">10.1002/andp.20095211219</a>'
  apa: 'Gögh, N., Thomas, P., Kuznetsova, I., Meier, T., &#38; Varga, I. (2010). Localization
    of excitons in weakly disordered semiconductor structures: A model study. <i>Annalen
    Der Physik</i>, <i>18</i>(12), 905–909. <a href="https://doi.org/10.1002/andp.20095211219">https://doi.org/10.1002/andp.20095211219</a>'
  bibtex: '@article{Gögh_Thomas_Kuznetsova_Meier_Varga_2010, title={Localization of
    excitons in weakly disordered semiconductor structures: A model study}, volume={18},
    DOI={<a href="https://doi.org/10.1002/andp.20095211219">10.1002/andp.20095211219</a>},
    number={12}, journal={Annalen der Physik}, author={Gögh, N. and Thomas, P. and
    Kuznetsova, I. and Meier, Torsten and Varga, I.}, year={2010}, pages={905–909}
    }'
  chicago: 'Gögh, N., P. Thomas, I. Kuznetsova, Torsten Meier, and I. Varga. “Localization
    of Excitons in Weakly Disordered Semiconductor Structures: A Model Study.” <i>Annalen
    Der Physik</i> 18, no. 12 (2010): 905–9. <a href="https://doi.org/10.1002/andp.20095211219">https://doi.org/10.1002/andp.20095211219</a>.'
  ieee: 'N. Gögh, P. Thomas, I. Kuznetsova, T. Meier, and I. Varga, “Localization
    of excitons in weakly disordered semiconductor structures: A model study,” <i>Annalen
    der Physik</i>, vol. 18, no. 12, pp. 905–909, 2010, doi: <a href="https://doi.org/10.1002/andp.20095211219">10.1002/andp.20095211219</a>.'
  mla: 'Gögh, N., et al. “Localization of Excitons in Weakly Disordered Semiconductor
    Structures: A Model Study.” <i>Annalen Der Physik</i>, vol. 18, no. 12, 2010,
    pp. 905–09, doi:<a href="https://doi.org/10.1002/andp.20095211219">10.1002/andp.20095211219</a>.'
  short: N. Gögh, P. Thomas, I. Kuznetsova, T. Meier, I. Varga, Annalen Der Physik
    18 (2010) 905–909.
date_created: 2021-09-24T08:06:30Z
date_updated: 2023-04-19T11:13:00Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '230'
doi: 10.1002/andp.20095211219
intvolume: '        18'
issue: '12'
language:
- iso: eng
page: 905-909
publication: Annalen der Physik
publication_identifier:
  issn:
  - 0003-3804
  - 1521-3889
publication_status: published
status: public
title: 'Localization of excitons in weakly disordered semiconductor structures: A
  model study'
type: journal_article
user_id: '49063'
volume: 18
year: '2010'
...
---
_id: '23480'
abstract:
- lang: eng
  text: We discuss transport and localization properties on the insulating side of
    the disorder dominated superconductor-insulator transition, described in terms
    of the dirty boson model. Analyzing the spectral properties of the interacting
    bosons in the absence of phonons, we argue that the Bose glass phase admits three
    distinct regimes. For strongest disorder the boson system is a fully localized,
    perfect insulator at any temperature. At smaller disorder, only the low temperature
    phase exhibits perfect insulation while delocalization takes place above a finite
    temperature. We argue that a third phase must intervene between these perfect
    insulators and the superconductor. This conducting Bose glass phase is characterized
    by a mobility edge in the many body spectrum, located at finite energy above the
    ground state. In this insulating regime purely electronically activated transport
    occurs, with a conductivity following an Arrhenius law at asymptotically low temperatures,
    while a tendency to superactivation is predicted at higher T. These predictions
    are in good agreement with recent transport experiments in highly disordered films
    of superconducting materials.
author:
- first_name: N.
  full_name: Gögh, N.
  last_name: Gögh
- first_name: P.
  full_name: Thomas, P.
  last_name: Thomas
- first_name: I.
  full_name: Kuznetsova, I.
  last_name: Kuznetsova
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
- first_name: I.
  full_name: Varga, I.
  last_name: Varga
citation:
  ama: 'Gögh N, Thomas P, Kuznetsova I, Meier T, Varga I. Localization of excitons
    in weakly disordered semiconductor structures: A model study. <i>Annalen der Physik</i>.
    2010;(12):905-909. doi:<a href="https://doi.org/10.1002/andp.200910382">10.1002/andp.200910382</a>'
  apa: 'Gögh, N., Thomas, P., Kuznetsova, I., Meier, T., &#38; Varga, I. (2010). Localization
    of excitons in weakly disordered semiconductor structures: A model study. <i>Annalen
    Der Physik</i>, <i>12</i>, 905–909. <a href="https://doi.org/10.1002/andp.200910382">https://doi.org/10.1002/andp.200910382</a>'
  bibtex: '@article{Gögh_Thomas_Kuznetsova_Meier_Varga_2010, title={Localization of
    excitons in weakly disordered semiconductor structures: A model study}, DOI={<a
    href="https://doi.org/10.1002/andp.200910382">10.1002/andp.200910382</a>}, number={12},
    journal={Annalen der Physik}, author={Gögh, N. and Thomas, P. and Kuznetsova,
    I. and Meier, Torsten and Varga, I.}, year={2010}, pages={905–909} }'
  chicago: 'Gögh, N., P. Thomas, I. Kuznetsova, Torsten Meier, and I. Varga. “Localization
    of Excitons in Weakly Disordered Semiconductor Structures: A Model Study.” <i>Annalen
    Der Physik</i>, no. 12 (2010): 905–9. <a href="https://doi.org/10.1002/andp.200910382">https://doi.org/10.1002/andp.200910382</a>.'
  ieee: 'N. Gögh, P. Thomas, I. Kuznetsova, T. Meier, and I. Varga, “Localization
    of excitons in weakly disordered semiconductor structures: A model study,” <i>Annalen
    der Physik</i>, no. 12, pp. 905–909, 2010, doi: <a href="https://doi.org/10.1002/andp.200910382">10.1002/andp.200910382</a>.'
  mla: 'Gögh, N., et al. “Localization of Excitons in Weakly Disordered Semiconductor
    Structures: A Model Study.” <i>Annalen Der Physik</i>, no. 12, 2010, pp. 905–09,
    doi:<a href="https://doi.org/10.1002/andp.200910382">10.1002/andp.200910382</a>.'
  short: N. Gögh, P. Thomas, I. Kuznetsova, T. Meier, I. Varga, Annalen Der Physik
    (2010) 905–909.
date_created: 2021-08-24T08:58:35Z
date_updated: 2023-04-19T11:12:57Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '230'
doi: 10.1002/andp.200910382
issue: '12'
language:
- iso: eng
page: 905-909
publication: Annalen der Physik
publication_identifier:
  issn:
  - 0003-3804
  - 1521-3889
publication_status: published
status: public
title: 'Localization of excitons in weakly disordered semiconductor structures: A
  model study'
type: journal_article
user_id: '49063'
year: '2010'
...
---
_id: '18558'
abstract:
- lang: eng
  text: We present an implementation of the GW approximation for the electronic self-energy
    within the full-potential linearized augmented-plane-wave (FLAPW) method. The
    algorithm uses an all-electron mixed product basis for the representation of response
    matrices and related quantities. This basis is derived from the FLAPW basis and
    is exact for wave-function products. The correlation part of the self-energy is
    calculated on the imaginary-frequency axis with a subsequent analytic continuation
    to the real axis. As an alternative we can perform the frequency convolution of
    the Green function G and the dynamically screened Coulomb interaction W explicitly
    by a contour integration. The singularity of the bare and screened interaction
    potentials gives rise to a numerically important self-energy contribution, which
    we treat analytically to achieve good convergence with respect to the k-point
    sampling. As numerical realizations of the GW approximation typically suffer from
    the high computational expense required for the evaluation of the nonlocal and
    frequency-dependent self-energy, we demonstrate how the algorithm can be made
    very efficient by exploiting spatial and time-reversal symmetry as well as by
    applying an optimization of the mixed product basis that retains only the numerically
    important contributions of the electron-electron interaction. This optimization
    step reduces the basis size without compromising the accuracy and accelerates
    the code considerably. Furthermore, we demonstrate that one can employ an extrapolar
    approximation for high-lying states to reduce the number of empty states that
    must be taken into account explicitly in the construction of the polarization
    function and the self-energy. We show convergence tests, CPU timings, and results
    for prototype semiconductors and insulators as well as ferromagnetic nickel.
article_number: '125102'
article_type: original
author:
- first_name: Christoph
  full_name: Friedrich, Christoph
  last_name: Friedrich
- first_name: Stefan
  full_name: Blügel, Stefan
  last_name: Blügel
- first_name: Arno
  full_name: Schindlmayr, Arno
  id: '458'
  last_name: Schindlmayr
  orcid: 0000-0002-4855-071X
citation:
  ama: Friedrich C, Blügel S, Schindlmayr A. Efficient implementation of the GW approximation
    within the all-electron FLAPW method. <i>Physical Review B</i>. 2010;81(12). doi:<a
    href="https://doi.org/10.1103/PhysRevB.81.125102">10.1103/PhysRevB.81.125102</a>
  apa: Friedrich, C., Blügel, S., &#38; Schindlmayr, A. (2010). Efficient implementation
    of the GW approximation within the all-electron FLAPW method. <i>Physical Review
    B</i>, <i>81</i>(12), Article 125102. <a href="https://doi.org/10.1103/PhysRevB.81.125102">https://doi.org/10.1103/PhysRevB.81.125102</a>
  bibtex: '@article{Friedrich_Blügel_Schindlmayr_2010, title={Efficient implementation
    of the GW approximation within the all-electron FLAPW method}, volume={81}, DOI={<a
    href="https://doi.org/10.1103/PhysRevB.81.125102">10.1103/PhysRevB.81.125102</a>},
    number={12125102}, journal={Physical Review B}, publisher={American Physical Society},
    author={Friedrich, Christoph and Blügel, Stefan and Schindlmayr, Arno}, year={2010}
    }'
  chicago: Friedrich, Christoph, Stefan Blügel, and Arno Schindlmayr. “Efficient Implementation
    of the GW Approximation within the All-Electron FLAPW Method.” <i>Physical Review
    B</i> 81, no. 12 (2010). <a href="https://doi.org/10.1103/PhysRevB.81.125102">https://doi.org/10.1103/PhysRevB.81.125102</a>.
  ieee: 'C. Friedrich, S. Blügel, and A. Schindlmayr, “Efficient implementation of
    the GW approximation within the all-electron FLAPW method,” <i>Physical Review
    B</i>, vol. 81, no. 12, Art. no. 125102, 2010, doi: <a href="https://doi.org/10.1103/PhysRevB.81.125102">10.1103/PhysRevB.81.125102</a>.'
  mla: Friedrich, Christoph, et al. “Efficient Implementation of the GW Approximation
    within the All-Electron FLAPW Method.” <i>Physical Review B</i>, vol. 81, no.
    12, 125102, American Physical Society, 2010, doi:<a href="https://doi.org/10.1103/PhysRevB.81.125102">10.1103/PhysRevB.81.125102</a>.
  short: C. Friedrich, S. Blügel, A. Schindlmayr, Physical Review B 81 (2010).
date_created: 2020-08-28T11:26:20Z
date_updated: 2023-04-20T14:57:10Z
ddc:
- '530'
department:
- _id: '296'
- _id: '35'
- _id: '15'
- _id: '170'
doi: 10.1103/PhysRevB.81.125102
external_id:
  arxiv:
  - '1003.0316'
  isi:
  - '000276248900039'
file:
- access_level: open_access
  content_type: application/pdf
  creator: schindlm
  date_created: 2020-08-28T11:29:11Z
  date_updated: 2020-08-30T15:06:54Z
  description: © 2010 American Physical Society
  file_id: '18559'
  file_name: PhysRevB.81.125102.pdf
  file_size: 330212
  relation: main_file
  title: Efficient implementation of the GW approximation within the all-electron
    FLAPW method
file_date_updated: 2020-08-30T15:06:54Z
has_accepted_license: '1'
intvolume: '        81'
isi: '1'
issue: '12'
language:
- iso: eng
oa: '1'
publication: Physical Review B
publication_identifier:
  eissn:
  - 1550-235X
  issn:
  - 1098-0121
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
related_material:
  record:
  - id: '22761'
    relation: other
    status: public
status: public
title: Efficient implementation of the GW approximation within the all-electron FLAPW
  method
type: journal_article
user_id: '16199'
volume: 81
year: '2010'
...
---
_id: '44064'
abstract:
- lang: eng
  text: We compute photocurrents generated by femtosecond single-color laser pulses
    in non-centrosymmetric semiconductor quantum wells by combining a 14 x 14 k.p
    band structure theory with multi-band semiconductor Bloch equations. The transient
    photocurrents are investigated experimentally by measuring the associated Terahertz
    emission. The dependencies of the photocurrent and the Terahertz emission on the
    excitation conditions are discussed for (110)-oriented GaAs quantum wells. The
    comparison between theory and experiment shows a good agreement.
author:
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
- first_name: Huynh Thanh
  full_name: Duc, Huynh Thanh
  last_name: Duc
- first_name: Jens
  full_name: Foerstner, Jens
  last_name: Foerstner
- first_name: S.
  full_name: Priyadarshi, S.
  last_name: Priyadarshi
- first_name: Ana Maria
  full_name: Racu, Ana Maria
  last_name: Racu
- first_name: Klaus
  full_name: Pierz, Klaus
  last_name: Pierz
- first_name: Uwe
  full_name: Siegner, Uwe
  last_name: Siegner
- first_name: Mark
  full_name: Bieler, Mark
  last_name: Bieler
citation:
  ama: 'Meier T, Duc HT, Foerstner J, et al. Experimental and theoretical investigations
    of photocurrents in non-centrosymmetric semiconductor quantum wells. In: <i>DPG
    Spring Meeting 2010 </i>. Vol 45. Verhandlungen der Deutschen Physikalischen Gesellschaft.
    ; 2010.'
  apa: Meier, T., Duc, H. T., Foerstner, J., Priyadarshi, S., Racu, A. M., Pierz,
    K., Siegner, U., &#38; Bieler, M. (2010). Experimental and theoretical investigations
    of photocurrents in non-centrosymmetric semiconductor quantum wells. <i>DPG Spring
    Meeting 2010 </i>, <i>45</i>(3).
  bibtex: '@inproceedings{Meier_Duc_Foerstner_Priyadarshi_Racu_Pierz_Siegner_Bieler_2010,
    series={Verhandlungen der Deutschen Physikalischen Gesellschaft}, title={Experimental
    and theoretical investigations of photocurrents in non-centrosymmetric semiconductor
    quantum wells}, volume={45}, number={3}, booktitle={DPG Spring meeting 2010 },
    author={Meier, Torsten and Duc, Huynh Thanh and Foerstner, Jens and Priyadarshi,
    S. and Racu, Ana Maria and Pierz, Klaus and Siegner, Uwe and Bieler, Mark}, year={2010},
    collection={Verhandlungen der Deutschen Physikalischen Gesellschaft} }'
  chicago: Meier, Torsten, Huynh Thanh Duc, Jens Foerstner, S. Priyadarshi, Ana Maria
    Racu, Klaus Pierz, Uwe Siegner, and Mark Bieler. “Experimental and Theoretical
    Investigations of Photocurrents in Non-Centrosymmetric Semiconductor Quantum Wells.”
    In <i>DPG Spring Meeting 2010 </i>, Vol. 45. Verhandlungen Der Deutschen Physikalischen
    Gesellschaft, 2010.
  ieee: T. Meier <i>et al.</i>, “Experimental and theoretical investigations of photocurrents
    in non-centrosymmetric semiconductor quantum wells,” in <i>DPG Spring meeting
    2010 </i>, Regensburg, Germany, 2010, vol. 45, no. 3.
  mla: Meier, Torsten, et al. “Experimental and Theoretical Investigations of Photocurrents
    in Non-Centrosymmetric Semiconductor Quantum Wells.” <i>DPG Spring Meeting 2010
    </i>, vol. 45, no. 3, 2010.
  short: 'T. Meier, H.T. Duc, J. Foerstner, S. Priyadarshi, A.M. Racu, K. Pierz, U.
    Siegner, M. Bieler, in: DPG Spring Meeting 2010 , 2010.'
conference:
  end_date: 2010-03-26
  location: Regensburg, Germany
  name: 'DPG Spring meeting 2010 '
  start_date: 2010-03-21
date_created: 2023-04-19T11:01:12Z
date_updated: 2023-05-01T12:48:34Z
department:
- _id: '293'
intvolume: '        45'
issue: '3'
language:
- iso: eng
main_file_link:
- url: https://www.dpg-verhandlungen.de/year/2010/conference/regensburg/part/hl/session/5/contribution/6
publication: 'DPG Spring meeting 2010 '
publication_identifier:
  issn:
  - 0420-0195
publication_status: published
series_title: Verhandlungen der Deutschen Physikalischen Gesellschaft
status: public
title: Experimental and theoretical investigations of photocurrents in non-centrosymmetric
  semiconductor quantum wells
type: conference
user_id: '49063'
volume: 45
year: '2010'
...
---
_id: '44067'
abstract:
- lang: eng
  text: Semiconductor nanostructures always contain a certain degree of disorder due
    to interface roughness and/or alloy disorder. The disorder has significant influence
    on the optical properties, e.g., excitonic absorption spectra. An adaptive wavelet
    approach for the solution of the excitonic Schroedinger equation, i.e., the semiconductor
    Bloch equation for the interband coherence linear in the external field, has been
    developed and applied to compute absorption spectra and/or wave functions. Results
    obtained for a thin GaAs semiconductor quantum wire considering a number of different
    model disorder potentials are presented and discussed.
author:
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
- first_name: Christian
  full_name: Mollet, Christian
  last_name: Mollet
- first_name: Angela
  full_name: Kunoth, Angela
  last_name: Kunoth
citation:
  ama: 'Meier T, Mollet C, Kunoth A. A numerical adaptive wavelet approach to excitonic
    absorption spectra of disordered semiconductor nanostructures. In: <i>DPG Spring
    Meeting 2010</i>. Vol 45. Verhandlungen der Deutschen Physikalischen Gesellschaft.
    ; 2010.'
  apa: Meier, T., Mollet, C., &#38; Kunoth, A. (2010). A numerical adaptive wavelet
    approach to excitonic absorption spectra of disordered semiconductor nanostructures.
    <i>DPG Spring Meeting 2010</i>, <i>45</i>(3).
  bibtex: '@inproceedings{Meier_Mollet_Kunoth_2010, series={Verhandlungen der Deutschen
    Physikalischen Gesellschaft}, title={A numerical adaptive wavelet approach to
    excitonic absorption spectra of disordered semiconductor nanostructures}, volume={45},
    number={3}, booktitle={DPG Spring meeting 2010}, author={Meier, Torsten and Mollet,
    Christian and Kunoth, Angela}, year={2010}, collection={Verhandlungen der Deutschen
    Physikalischen Gesellschaft} }'
  chicago: Meier, Torsten, Christian Mollet, and Angela Kunoth. “A Numerical Adaptive
    Wavelet Approach to Excitonic Absorption Spectra of Disordered Semiconductor Nanostructures.”
    In <i>DPG Spring Meeting 2010</i>, Vol. 45. Verhandlungen Der Deutschen Physikalischen
    Gesellschaft, 2010.
  ieee: T. Meier, C. Mollet, and A. Kunoth, “A numerical adaptive wavelet approach
    to excitonic absorption spectra of disordered semiconductor nanostructures,” in
    <i>DPG Spring meeting 2010</i>, Regensburg, Germany, 2010, vol. 45, no. 3.
  mla: Meier, Torsten, et al. “A Numerical Adaptive Wavelet Approach to Excitonic
    Absorption Spectra of Disordered Semiconductor Nanostructures.” <i>DPG Spring
    Meeting 2010</i>, vol. 45, no. 3, 2010.
  short: 'T. Meier, C. Mollet, A. Kunoth, in: DPG Spring Meeting 2010, 2010.'
conference:
  end_date: 2010-03-26
  location: Regensburg, Germany
  name: DPG Spring meeting 2010
  start_date: 2010-03-21
date_created: 2023-04-19T11:06:53Z
date_updated: 2023-05-01T12:56:11Z
department:
- _id: '293'
intvolume: '        45'
issue: '3'
language:
- iso: eng
main_file_link:
- url: https://www.dpg-verhandlungen.de/year/2010/conference/regensburg/part/hl/session/60/contribution/1
publication: DPG Spring meeting 2010
publication_identifier:
  issn:
  - ' 0420-0195'
publication_status: published
series_title: Verhandlungen der Deutschen Physikalischen Gesellschaft
status: public
title: A numerical adaptive wavelet approach to excitonic absorption spectra of disordered
  semiconductor nanostructures
type: conference
user_id: '49063'
volume: 45
year: '2010'
...
---
_id: '44065'
abstract:
- lang: eng
  text: The behavior of waveguide plasmon polaritons is studied employing ultrafast
    coherent control like schemes for a gold lattice coupled to a photonic waveguide
    for the structure. Different models to describe the third-harmonic generation
    are presented and the resulting equations are solved numerically. The calculations
    are compared to recent experimental data and show good agreement for the most
    prominent features in the time-integrated third order intensity.
author:
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
- first_name: Reinold
  full_name: Podzimski, Reinold
  last_name: Podzimski
- first_name: Matthias
  full_name: Reichelt, Matthias
  id: '138'
  last_name: Reichelt
- first_name: Tobias
  full_name: Utikal, Tobias
  last_name: Utikal
- first_name: Harald
  full_name: Giessen, Harald
  last_name: Giessen
citation:
  ama: 'Meier T, Podzimski R, Reichelt M, Utikal T, Giessen H. Controlling the third-harmonic
    generation in a metallic photonic crystal coupled to a waveguide. In: <i>DPG Spring
    Meeting 2010</i>. Vol 45. Verhandlungen der Deutschen Physikalischen Gesellschaft.
    ; 2010.'
  apa: Meier, T., Podzimski, R., Reichelt, M., Utikal, T., &#38; Giessen, H. (2010).
    Controlling the third-harmonic generation in a metallic photonic crystal coupled
    to a waveguide. <i>DPG Spring Meeting 2010</i>, <i>45</i>(3).
  bibtex: '@inproceedings{Meier_Podzimski_Reichelt_Utikal_Giessen_2010, series={Verhandlungen
    der Deutschen Physikalischen Gesellschaft}, title={Controlling the third-harmonic
    generation in a metallic photonic crystal coupled to a waveguide}, volume={45},
    number={3}, booktitle={DPG Spring meeting 2010}, author={Meier, Torsten and Podzimski,
    Reinold and Reichelt, Matthias and Utikal, Tobias and Giessen, Harald}, year={2010},
    collection={Verhandlungen der Deutschen Physikalischen Gesellschaft} }'
  chicago: Meier, Torsten, Reinold Podzimski, Matthias Reichelt, Tobias Utikal, and
    Harald Giessen. “Controlling the Third-Harmonic Generation in a Metallic Photonic
    Crystal Coupled to a Waveguide.” In <i>DPG Spring Meeting 2010</i>, Vol. 45. Verhandlungen
    Der Deutschen Physikalischen Gesellschaft, 2010.
  ieee: T. Meier, R. Podzimski, M. Reichelt, T. Utikal, and H. Giessen, “Controlling
    the third-harmonic generation in a metallic photonic crystal coupled to a waveguide,”
    in <i>DPG Spring meeting 2010</i>, Regensburg, Germany, 2010, vol. 45, no. 3.
  mla: Meier, Torsten, et al. “Controlling the Third-Harmonic Generation in a Metallic
    Photonic Crystal Coupled to a Waveguide.” <i>DPG Spring Meeting 2010</i>, vol.
    45, no. 3, 2010.
  short: 'T. Meier, R. Podzimski, M. Reichelt, T. Utikal, H. Giessen, in: DPG Spring
    Meeting 2010, 2010.'
conference:
  end_date: 2010-03-26
  location: Regensburg, Germany
  name: DPG Spring meeting 2010
  start_date: 2010-03-21
date_created: 2023-04-19T11:03:20Z
date_updated: 2023-05-01T12:51:52Z
department:
- _id: '293'
intvolume: '        45'
issue: '3'
language:
- iso: eng
main_file_link:
- url: https://www.dpg-verhandlungen.de/year/2010/conference/regensburg/part/o/session/59/contribution/36
publication: DPG Spring meeting 2010
publication_identifier:
  issn:
  - 0420-0195
publication_status: published
series_title: Verhandlungen der Deutschen Physikalischen Gesellschaft
status: public
title: Controlling the third-harmonic generation in a metallic photonic crystal coupled
  to a waveguide
type: conference
user_id: '49063'
volume: 45
year: '2010'
...
---
_id: '44066'
abstract:
- lang: eng
  text: We present a joint theoretical study of the optical properties of GaAs and
    AlAs bulk and heterostructures. Thereby, we compare the theoretical description
    of optical excitation on several levels of theory. Results obtained from kp theory
    are discussed along with data from ab initio calculations within the frameworks
    of independent-particle (DFT), independent quasiparticle (GW), or Coulomb-correlated
    quasiparticle (BSE) approximation.
author:
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
- first_name: Marc
  full_name: Landmann, Marc
  last_name: Landmann
- first_name: Michal
  full_name: Pochwala, Michal
  last_name: Pochwala
- first_name: Jens
  full_name: Foerstner, Jens
  last_name: Foerstner
- first_name: Eva
  full_name: Rauls, Eva
  last_name: Rauls
- first_name: Wolf Gero
  full_name: Schmidt, Wolf Gero
  last_name: Schmidt
citation:
  ama: 'Meier T, Landmann M, Pochwala M, Foerstner J, Rauls E, Schmidt WG. Theoretical
    description of optical properties in III-V semiconductor nanostructures. In: <i>DPG
    Spring Meeting 2010</i>. Vol 45. Verhandlungen der Deutschen Physikalischen Gesellschaft.
    ; 2010.'
  apa: Meier, T., Landmann, M., Pochwala, M., Foerstner, J., Rauls, E., &#38; Schmidt,
    W. G. (2010). Theoretical description of optical properties in III-V semiconductor
    nanostructures. <i>DPG Spring Meeting 2010</i>, <i>45</i>(3).
  bibtex: '@inproceedings{Meier_Landmann_Pochwala_Foerstner_Rauls_Schmidt_2010, series={Verhandlungen
    der Deutschen Physikalischen Gesellschaft}, title={Theoretical description of
    optical properties in III-V semiconductor nanostructures}, volume={45}, number={3},
    booktitle={DPG Spring meeting 2010}, author={Meier, Torsten and Landmann, Marc
    and Pochwala, Michal and Foerstner, Jens and Rauls, Eva and Schmidt, Wolf Gero},
    year={2010}, collection={Verhandlungen der Deutschen Physikalischen Gesellschaft}
    }'
  chicago: Meier, Torsten, Marc Landmann, Michal Pochwala, Jens Foerstner, Eva Rauls,
    and Wolf Gero Schmidt. “Theoretical Description of Optical Properties in III-V
    Semiconductor Nanostructures.” In <i>DPG Spring Meeting 2010</i>, Vol. 45. Verhandlungen
    Der Deutschen Physikalischen Gesellschaft, 2010.
  ieee: T. Meier, M. Landmann, M. Pochwala, J. Foerstner, E. Rauls, and W. G. Schmidt,
    “Theoretical description of optical properties in III-V semiconductor nanostructures,”
    in <i>DPG Spring meeting 2010</i>, Regensburg, Germany, 2010, vol. 45, no. 3.
  mla: Meier, Torsten, et al. “Theoretical Description of Optical Properties in III-V
    Semiconductor Nanostructures.” <i>DPG Spring Meeting 2010</i>, vol. 45, no. 3,
    2010.
  short: 'T. Meier, M. Landmann, M. Pochwala, J. Foerstner, E. Rauls, W.G. Schmidt,
    in: DPG Spring Meeting 2010, 2010.'
conference:
  end_date: 2010-03-26
  location: Regensburg, Germany
  name: DPG Spring meeting 2010
  start_date: 2010-03-21
date_created: 2023-04-19T11:05:15Z
date_updated: 2023-05-01T12:54:38Z
department:
- _id: '293'
intvolume: '        45'
issue: '3'
language:
- iso: eng
main_file_link:
- url: https://www.dpg-verhandlungen.de/year/2010/conference/regensburg/part/hl/session/34/contribution/1
publication: DPG Spring meeting 2010
publication_identifier:
  issn:
  - 0420-0195
publication_status: published
series_title: Verhandlungen der Deutschen Physikalischen Gesellschaft
status: public
title: Theoretical description of optical properties in III-V semiconductor nanostructures
type: conference
user_id: '49063'
volume: 45
year: '2010'
...
---
_id: '13581'
author:
- first_name: S.
  full_name: Wippermann, S.
  last_name: Wippermann
- first_name: Wolf Gero
  full_name: Schmidt, Wolf Gero
  id: '468'
  last_name: Schmidt
  orcid: 0000-0002-2717-5076
- first_name: F.
  full_name: Bechstedt, F.
  last_name: Bechstedt
- first_name: S.
  full_name: Chandola, S.
  last_name: Chandola
- first_name: K.
  full_name: Hinrichs, K.
  last_name: Hinrichs
- first_name: M.
  full_name: Gensch, M.
  last_name: Gensch
- first_name: N.
  full_name: Esser, N.
  last_name: Esser
- first_name: K.
  full_name: Fleischer, K.
  last_name: Fleischer
- first_name: J. F.
  full_name: McGilp, J. F.
  last_name: McGilp
citation:
  ama: Wippermann S, Schmidt WG, Bechstedt F, et al. Optical anisotropy of Si(111)-(4
    × 1)/(8 × 2)-In nanowires calculated fromfirst-principles. <i>physica status solidi
    (c)</i>. 2010;7(2):133-136. doi:<a href="https://doi.org/10.1002/pssc.200982413">10.1002/pssc.200982413</a>
  apa: Wippermann, S., Schmidt, W. G., Bechstedt, F., Chandola, S., Hinrichs, K.,
    Gensch, M., Esser, N., Fleischer, K., &#38; McGilp, J. F. (2010). Optical anisotropy
    of Si(111)-(4 × 1)/(8 × 2)-In nanowires calculated fromfirst-principles. <i>Physica
    Status Solidi (c)</i>, <i>7</i>(2), 133–136. <a href="https://doi.org/10.1002/pssc.200982413">https://doi.org/10.1002/pssc.200982413</a>
  bibtex: '@article{Wippermann_Schmidt_Bechstedt_Chandola_Hinrichs_Gensch_Esser_Fleischer_McGilp_2010,
    title={Optical anisotropy of Si(111)-(4 × 1)/(8 × 2)-In nanowires calculated fromfirst-principles},
    volume={7}, DOI={<a href="https://doi.org/10.1002/pssc.200982413">10.1002/pssc.200982413</a>},
    number={2}, journal={physica status solidi (c)}, author={Wippermann, S. and Schmidt,
    Wolf Gero and Bechstedt, F. and Chandola, S. and Hinrichs, K. and Gensch, M. and
    Esser, N. and Fleischer, K. and McGilp, J. F.}, year={2010}, pages={133–136} }'
  chicago: 'Wippermann, S., Wolf Gero Schmidt, F. Bechstedt, S. Chandola, K. Hinrichs,
    M. Gensch, N. Esser, K. Fleischer, and J. F. McGilp. “Optical Anisotropy of Si(111)-(4
    × 1)/(8 × 2)-In Nanowires Calculated Fromfirst-Principles.” <i>Physica Status
    Solidi (c)</i> 7, no. 2 (2010): 133–36. <a href="https://doi.org/10.1002/pssc.200982413">https://doi.org/10.1002/pssc.200982413</a>.'
  ieee: 'S. Wippermann <i>et al.</i>, “Optical anisotropy of Si(111)-(4 × 1)/(8 ×
    2)-In nanowires calculated fromfirst-principles,” <i>physica status solidi (c)</i>,
    vol. 7, no. 2, pp. 133–136, 2010, doi: <a href="https://doi.org/10.1002/pssc.200982413">10.1002/pssc.200982413</a>.'
  mla: Wippermann, S., et al. “Optical Anisotropy of Si(111)-(4 × 1)/(8 × 2)-In Nanowires
    Calculated Fromfirst-Principles.” <i>Physica Status Solidi (c)</i>, vol. 7, no.
    2, 2010, pp. 133–36, doi:<a href="https://doi.org/10.1002/pssc.200982413">10.1002/pssc.200982413</a>.
  short: S. Wippermann, W.G. Schmidt, F. Bechstedt, S. Chandola, K. Hinrichs, M. Gensch,
    N. Esser, K. Fleischer, J.F. McGilp, Physica Status Solidi (c) 7 (2010) 133–136.
date_created: 2019-10-01T14:34:59Z
date_updated: 2025-12-05T12:45:21Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '35'
- _id: '230'
- _id: '27'
doi: 10.1002/pssc.200982413
intvolume: '         7'
issue: '2'
language:
- iso: eng
page: 133-136
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: physica status solidi (c)
publication_identifier:
  issn:
  - 1862-6351
  - 1610-1642
publication_status: published
status: public
title: Optical anisotropy of Si(111)-(4 × 1)/(8 × 2)-In nanowires calculated fromfirst-principles
type: journal_article
user_id: '16199'
volume: 7
year: '2010'
...
---
_id: '13573'
abstract:
- lang: eng
  text: Given the vast range of lithium niobate (LiNbO3) applications, the knowledge
    about its electronic and optical properties is surprisingly limited. The direct
    band gap of 3.7 eV for the ferroelectric phase – frequently cited in the literature
    – is concluded from optical experiments. Recent theoretical investigations show
    that the electronic band‐structure and optical properties are very sensitive to
    quasiparticle and electron‐hole attraction effects, which were included using
    the GW approximation for the electron self‐energy and the Bethe‐Salpeter equation
    respectively, both based on a model screening function. The calculated fundamental
    gap was found to be at least 1 eV larger than the experimental value. To resolve
    this discrepancy we performed first‐principles GW calculations for lithium niobate
    using the full‐potential linearized augmented plane‐wave (FLAPW) method. Thereby
    we use the parameter‐free random phase approximation for a realistic description
    of the nonlocal and energydependent screening. This leads to a band gap of about
    4.7 (4.2) eV for ferro(para)‐electric lithium niobate.
article_type: original
author:
- first_name: Christian
  full_name: Thierfelder, Christian
  last_name: Thierfelder
- first_name: Simone
  full_name: Sanna, Simone
  last_name: Sanna
- first_name: Arno
  full_name: Schindlmayr, Arno
  id: '458'
  last_name: Schindlmayr
  orcid: 0000-0002-4855-071X
- first_name: Wolf Gero
  full_name: Schmidt, Wolf Gero
  id: '468'
  last_name: Schmidt
  orcid: 0000-0002-2717-5076
citation:
  ama: Thierfelder C, Sanna S, Schindlmayr A, Schmidt WG. Do we know the band gap
    of lithium niobate? <i>Physica Status Solidi C</i>. 2010;7(2):362-365. doi:<a
    href="https://doi.org/10.1002/pssc.200982473">10.1002/pssc.200982473</a>
  apa: Thierfelder, C., Sanna, S., Schindlmayr, A., &#38; Schmidt, W. G. (2010). Do
    we know the band gap of lithium niobate? <i>Physica Status Solidi C</i>, <i>7</i>(2),
    362–365. <a href="https://doi.org/10.1002/pssc.200982473">https://doi.org/10.1002/pssc.200982473</a>
  bibtex: '@article{Thierfelder_Sanna_Schindlmayr_Schmidt_2010, title={Do we know
    the band gap of lithium niobate?}, volume={7}, DOI={<a href="https://doi.org/10.1002/pssc.200982473">10.1002/pssc.200982473</a>},
    number={2}, journal={Physica Status Solidi C}, publisher={Wiley-VCH}, author={Thierfelder,
    Christian and Sanna, Simone and Schindlmayr, Arno and Schmidt, Wolf Gero}, year={2010},
    pages={362–365} }'
  chicago: 'Thierfelder, Christian, Simone Sanna, Arno Schindlmayr, and Wolf Gero
    Schmidt. “Do We Know the Band Gap of Lithium Niobate?” <i>Physica Status Solidi
    C</i> 7, no. 2 (2010): 362–65. <a href="https://doi.org/10.1002/pssc.200982473">https://doi.org/10.1002/pssc.200982473</a>.'
  ieee: 'C. Thierfelder, S. Sanna, A. Schindlmayr, and W. G. Schmidt, “Do we know
    the band gap of lithium niobate?,” <i>Physica Status Solidi C</i>, vol. 7, no.
    2, pp. 362–365, 2010, doi: <a href="https://doi.org/10.1002/pssc.200982473">10.1002/pssc.200982473</a>.'
  mla: Thierfelder, Christian, et al. “Do We Know the Band Gap of Lithium Niobate?”
    <i>Physica Status Solidi C</i>, vol. 7, no. 2, Wiley-VCH, 2010, pp. 362–65, doi:<a
    href="https://doi.org/10.1002/pssc.200982473">10.1002/pssc.200982473</a>.
  short: C. Thierfelder, S. Sanna, A. Schindlmayr, W.G. Schmidt, Physica Status Solidi
    C 7 (2010) 362–365.
conference:
  end_date: 2009-07-10
  location: Weimar
  name: 12th International Conference on the Formation of Semiconductor Interfaces
  start_date: 2009-07-05
date_created: 2019-10-01T09:18:29Z
date_updated: 2025-12-05T13:01:45Z
ddc:
- '530'
department:
- _id: '295'
- _id: '296'
- _id: '15'
- _id: '35'
- _id: '230'
- _id: '27'
- _id: '170'
doi: 10.1002/pssc.200982473
external_id:
  isi:
  - '000284313000057'
file:
- access_level: closed
  content_type: application/pdf
  creator: schindlm
  date_created: 2020-08-28T14:39:40Z
  date_updated: 2020-08-30T15:07:56Z
  description: © 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
  file_id: '18583'
  file_name: pssc.200982473.pdf
  file_size: 212674
  relation: main_file
  title: Do we know the band gap of lithium niobate?
file_date_updated: 2020-08-30T15:07:56Z
has_accepted_license: '1'
intvolume: '         7'
isi: '1'
issue: '2'
language:
- iso: eng
page: 362-365
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Physica Status Solidi C
publication_identifier:
  eissn:
  - 1610-1642
  issn:
  - 1862-6351
publication_status: published
publisher: Wiley-VCH
quality_controlled: '1'
status: public
title: Do we know the band gap of lithium niobate?
type: journal_article
user_id: '16199'
volume: 7
year: '2010'
...
