---
_id: '13830'
author:
- first_name: E.
  full_name: Rauls, E.
  last_name: Rauls
- first_name: J.
  full_name: Wiebe, J.
  last_name: Wiebe
- first_name: Wolf Gero
  full_name: Schmidt, Wolf Gero
  id: '468'
  last_name: Schmidt
  orcid: 0000-0002-2717-5076
citation:
  ama: Rauls E, Wiebe J, Schmidt WG. Understanding the cubic AlN growth plane from
    first principles. <i>Journal of Crystal Growth</i>. 2010;312:2892-2895. doi:<a
    href="https://doi.org/10.1016/j.jcrysgro.2010.07.027">10.1016/j.jcrysgro.2010.07.027</a>
  apa: Rauls, E., Wiebe, J., &#38; Schmidt, W. G. (2010). Understanding the cubic
    AlN growth plane from first principles. <i>Journal of Crystal Growth</i>, <i>312</i>,
    2892–2895. <a href="https://doi.org/10.1016/j.jcrysgro.2010.07.027">https://doi.org/10.1016/j.jcrysgro.2010.07.027</a>
  bibtex: '@article{Rauls_Wiebe_Schmidt_2010, title={Understanding the cubic AlN growth
    plane from first principles}, volume={312}, DOI={<a href="https://doi.org/10.1016/j.jcrysgro.2010.07.027">10.1016/j.jcrysgro.2010.07.027</a>},
    journal={Journal of Crystal Growth}, author={Rauls, E. and Wiebe, J. and Schmidt,
    Wolf Gero}, year={2010}, pages={2892–2895} }'
  chicago: 'Rauls, E., J. Wiebe, and Wolf Gero Schmidt. “Understanding the Cubic AlN
    Growth Plane from First Principles.” <i>Journal of Crystal Growth</i> 312 (2010):
    2892–95. <a href="https://doi.org/10.1016/j.jcrysgro.2010.07.027">https://doi.org/10.1016/j.jcrysgro.2010.07.027</a>.'
  ieee: 'E. Rauls, J. Wiebe, and W. G. Schmidt, “Understanding the cubic AlN growth
    plane from first principles,” <i>Journal of Crystal Growth</i>, vol. 312, pp.
    2892–2895, 2010, doi: <a href="https://doi.org/10.1016/j.jcrysgro.2010.07.027">10.1016/j.jcrysgro.2010.07.027</a>.'
  mla: Rauls, E., et al. “Understanding the Cubic AlN Growth Plane from First Principles.”
    <i>Journal of Crystal Growth</i>, vol. 312, 2010, pp. 2892–95, doi:<a href="https://doi.org/10.1016/j.jcrysgro.2010.07.027">10.1016/j.jcrysgro.2010.07.027</a>.
  short: E. Rauls, J. Wiebe, W.G. Schmidt, Journal of Crystal Growth 312 (2010) 2892–2895.
date_created: 2019-10-15T07:34:48Z
date_updated: 2025-12-16T07:49:01Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '35'
- _id: '230'
doi: 10.1016/j.jcrysgro.2010.07.027
funded_apc: '1'
intvolume: '       312'
language:
- iso: eng
page: 2892-2895
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Journal of Crystal Growth
publication_identifier:
  issn:
  - 0022-0248
publication_status: published
status: public
title: Understanding the cubic AlN growth plane from first principles
type: journal_article
user_id: '16199'
volume: 312
year: '2010'
...
---
_id: '13834'
author:
- first_name: Simone
  full_name: Sanna, Simone
  last_name: Sanna
- first_name: Wolf Gero
  full_name: Schmidt, Wolf Gero
  id: '468'
  last_name: Schmidt
  orcid: 0000-0002-2717-5076
citation:
  ama: Sanna S, Schmidt WG. GaN/LiNbO3 (0001) interface formation calculated from
    first-principles. <i>Applied Surface Science</i>. 2010;256:5740-5743. doi:<a href="https://doi.org/10.1016/j.apsusc.2010.03.098">10.1016/j.apsusc.2010.03.098</a>
  apa: Sanna, S., &#38; Schmidt, W. G. (2010). GaN/LiNbO3 (0001) interface formation
    calculated from first-principles. <i>Applied Surface Science</i>, <i>256</i>,
    5740–5743. <a href="https://doi.org/10.1016/j.apsusc.2010.03.098">https://doi.org/10.1016/j.apsusc.2010.03.098</a>
  bibtex: '@article{Sanna_Schmidt_2010, title={GaN/LiNbO3 (0001) interface formation
    calculated from first-principles}, volume={256}, DOI={<a href="https://doi.org/10.1016/j.apsusc.2010.03.098">10.1016/j.apsusc.2010.03.098</a>},
    journal={Applied Surface Science}, author={Sanna, Simone and Schmidt, Wolf Gero},
    year={2010}, pages={5740–5743} }'
  chicago: 'Sanna, Simone, and Wolf Gero Schmidt. “GaN/LiNbO3 (0001) Interface Formation
    Calculated from First-Principles.” <i>Applied Surface Science</i> 256 (2010):
    5740–43. <a href="https://doi.org/10.1016/j.apsusc.2010.03.098">https://doi.org/10.1016/j.apsusc.2010.03.098</a>.'
  ieee: 'S. Sanna and W. G. Schmidt, “GaN/LiNbO3 (0001) interface formation calculated
    from first-principles,” <i>Applied Surface Science</i>, vol. 256, pp. 5740–5743,
    2010, doi: <a href="https://doi.org/10.1016/j.apsusc.2010.03.098">10.1016/j.apsusc.2010.03.098</a>.'
  mla: Sanna, Simone, and Wolf Gero Schmidt. “GaN/LiNbO3 (0001) Interface Formation
    Calculated from First-Principles.” <i>Applied Surface Science</i>, vol. 256, 2010,
    pp. 5740–43, doi:<a href="https://doi.org/10.1016/j.apsusc.2010.03.098">10.1016/j.apsusc.2010.03.098</a>.
  short: S. Sanna, W.G. Schmidt, Applied Surface Science 256 (2010) 5740–5743.
date_created: 2019-10-15T07:40:10Z
date_updated: 2025-12-16T07:47:24Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '35'
- _id: '230'
- _id: '27'
doi: 10.1016/j.apsusc.2010.03.098
funded_apc: '1'
intvolume: '       256'
language:
- iso: eng
page: 5740-5743
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Applied Surface Science
publication_identifier:
  issn:
  - 0169-4332
publication_status: published
status: public
title: GaN/LiNbO3 (0001) interface formation calculated from first-principles
type: journal_article
user_id: '16199'
volume: 256
year: '2010'
...
---
_id: '13826'
author:
- first_name: S.
  full_name: Blankenburg, S.
  last_name: Blankenburg
- first_name: E.
  full_name: Rauls, E.
  last_name: Rauls
- first_name: Wolf Gero
  full_name: Schmidt, Wolf Gero
  id: '468'
  last_name: Schmidt
  orcid: 0000-0002-2717-5076
citation:
  ama: Blankenburg S, Rauls E, Schmidt WG. Catalytic Action of a Cu(111) Surface on
    Tetraazaperopyrene Polymerization. <i>The Journal of Physical Chemistry Letters</i>.
    2010;1:3266-3270. doi:<a href="https://doi.org/10.1021/jz101389u">10.1021/jz101389u</a>
  apa: Blankenburg, S., Rauls, E., &#38; Schmidt, W. G. (2010). Catalytic Action of
    a Cu(111) Surface on Tetraazaperopyrene Polymerization. <i>The Journal of Physical
    Chemistry Letters</i>, <i>1</i>, 3266–3270. <a href="https://doi.org/10.1021/jz101389u">https://doi.org/10.1021/jz101389u</a>
  bibtex: '@article{Blankenburg_Rauls_Schmidt_2010, title={Catalytic Action of a Cu(111)
    Surface on Tetraazaperopyrene Polymerization}, volume={1}, DOI={<a href="https://doi.org/10.1021/jz101389u">10.1021/jz101389u</a>},
    journal={The Journal of Physical Chemistry Letters}, author={Blankenburg, S. and
    Rauls, E. and Schmidt, Wolf Gero}, year={2010}, pages={3266–3270} }'
  chicago: 'Blankenburg, S., E. Rauls, and Wolf Gero Schmidt. “Catalytic Action of
    a Cu(111) Surface on Tetraazaperopyrene Polymerization.” <i>The Journal of Physical
    Chemistry Letters</i> 1 (2010): 3266–70. <a href="https://doi.org/10.1021/jz101389u">https://doi.org/10.1021/jz101389u</a>.'
  ieee: 'S. Blankenburg, E. Rauls, and W. G. Schmidt, “Catalytic Action of a Cu(111)
    Surface on Tetraazaperopyrene Polymerization,” <i>The Journal of Physical Chemistry
    Letters</i>, vol. 1, pp. 3266–3270, 2010, doi: <a href="https://doi.org/10.1021/jz101389u">10.1021/jz101389u</a>.'
  mla: Blankenburg, S., et al. “Catalytic Action of a Cu(111) Surface on Tetraazaperopyrene
    Polymerization.” <i>The Journal of Physical Chemistry Letters</i>, vol. 1, 2010,
    pp. 3266–70, doi:<a href="https://doi.org/10.1021/jz101389u">10.1021/jz101389u</a>.
  short: S. Blankenburg, E. Rauls, W.G. Schmidt, The Journal of Physical Chemistry
    Letters 1 (2010) 3266–3270.
date_created: 2019-10-15T07:24:15Z
date_updated: 2025-12-16T07:50:41Z
department:
- _id: '15'
- _id: '170'
- _id: '295'
- _id: '35'
- _id: '230'
- _id: '27'
doi: 10.1021/jz101389u
funded_apc: '1'
intvolume: '         1'
language:
- iso: eng
page: 3266-3270
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: The Journal of Physical Chemistry Letters
publication_identifier:
  issn:
  - 1948-7185
publication_status: published
status: public
title: Catalytic Action of a Cu(111) Surface on Tetraazaperopyrene Polymerization
type: journal_article
user_id: '16199'
volume: 1
year: '2010'
...
---
_id: '15846'
author:
- first_name: Stefan
  full_name: Schumacher, Stefan
  id: '27271'
  last_name: Schumacher
  orcid: 0000-0003-4042-4951
- first_name: Ian
  full_name: Galbraith, Ian
  last_name: Galbraith
- first_name: Arvydas
  full_name: Ruseckas, Arvydas
  last_name: Ruseckas
- first_name: Graham A.
  full_name: Turnbull, Graham A.
  last_name: Turnbull
- first_name: Ifor D. W.
  full_name: Samuel, Ifor D. W.
  last_name: Samuel
citation:
  ama: 'Schumacher S, Galbraith I, Ruseckas A, Turnbull GA, Samuel IDW. Dynamics of
    photoexcitation and stimulated optical emission in conjugated polymers: A multiscale
    quantum-chemistry and Maxwell-Bloch-equations approach. <i>Physical Review B</i>.
    Published online 2010. doi:<a href="https://doi.org/10.1103/physrevb.81.245407">10.1103/physrevb.81.245407</a>'
  apa: 'Schumacher, S., Galbraith, I., Ruseckas, A., Turnbull, G. A., &#38; Samuel,
    I. D. W. (2010). Dynamics of photoexcitation and stimulated optical emission in
    conjugated polymers: A multiscale quantum-chemistry and Maxwell-Bloch-equations
    approach. <i>Physical Review B</i>. <a href="https://doi.org/10.1103/physrevb.81.245407">https://doi.org/10.1103/physrevb.81.245407</a>'
  bibtex: '@article{Schumacher_Galbraith_Ruseckas_Turnbull_Samuel_2010, title={Dynamics
    of photoexcitation and stimulated optical emission in conjugated polymers: A multiscale
    quantum-chemistry and Maxwell-Bloch-equations approach}, DOI={<a href="https://doi.org/10.1103/physrevb.81.245407">10.1103/physrevb.81.245407</a>},
    journal={Physical Review B}, author={Schumacher, Stefan and Galbraith, Ian and
    Ruseckas, Arvydas and Turnbull, Graham A. and Samuel, Ifor D. W.}, year={2010}
    }'
  chicago: 'Schumacher, Stefan, Ian Galbraith, Arvydas Ruseckas, Graham A. Turnbull,
    and Ifor D. W. Samuel. “Dynamics of Photoexcitation and Stimulated Optical Emission
    in Conjugated Polymers: A Multiscale Quantum-Chemistry and Maxwell-Bloch-Equations
    Approach.” <i>Physical Review B</i>, 2010. <a href="https://doi.org/10.1103/physrevb.81.245407">https://doi.org/10.1103/physrevb.81.245407</a>.'
  ieee: 'S. Schumacher, I. Galbraith, A. Ruseckas, G. A. Turnbull, and I. D. W. Samuel,
    “Dynamics of photoexcitation and stimulated optical emission in conjugated polymers:
    A multiscale quantum-chemistry and Maxwell-Bloch-equations approach,” <i>Physical
    Review B</i>, 2010, doi: <a href="https://doi.org/10.1103/physrevb.81.245407">10.1103/physrevb.81.245407</a>.'
  mla: 'Schumacher, Stefan, et al. “Dynamics of Photoexcitation and Stimulated Optical
    Emission in Conjugated Polymers: A Multiscale Quantum-Chemistry and Maxwell-Bloch-Equations
    Approach.” <i>Physical Review B</i>, 2010, doi:<a href="https://doi.org/10.1103/physrevb.81.245407">10.1103/physrevb.81.245407</a>.'
  short: S. Schumacher, I. Galbraith, A. Ruseckas, G.A. Turnbull, I.D.W. Samuel, Physical
    Review B (2010).
date_created: 2020-02-10T11:19:35Z
date_updated: 2025-12-16T08:02:49Z
department:
- _id: '15'
- _id: '170'
- _id: '297'
- _id: '35'
- _id: '230'
- _id: '27'
doi: 10.1103/physrevb.81.245407
language:
- iso: eng
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: Physical Review B
publication_identifier:
  issn:
  - 1098-0121
  - 1550-235X
publication_status: published
status: public
title: 'Dynamics of photoexcitation and stimulated optical emission in conjugated
  polymers: A multiscale quantum-chemistry and Maxwell-Bloch-equations approach'
type: journal_article
user_id: '16199'
year: '2010'
...
---
_id: '18562'
abstract:
- lang: eng
  text: "The structural and electronic properties of strained silicon are investigated
    quantitatively with ab initio computational methods. For this purpose we combine
    densityfunctional theory within the local‐density approximation and the GW approximation
    for the electronic self‐energy. From the variation of the total energy as a function
    of applied strain we obtain the elastic constants, Poisson ratios and related
    structural parameters, taking a possible internal relaxation fully into account.
    For biaxial tensile strain in the (001) and (111) planes we then investigate the
    effects on the electronic band structure. These strain configurations occur in
    epitaxial silicon films grown on SiGe templates along different crystallographic
    directions.\r\nThe tetragonal deformation resulting from (001) strain induces
    a valley splitting that removes the sixfold degeneracy of the conduction‐band
    minimum. Furthermore, strain in any direction causes the band structure to warp.
    We present quantitative results for the electron effective mass, derived from
    the curvature of the conduction band, as a function of strain and discuss the
    implications for the mobility of the charge carriers. The inclusion of proper
    self‐energy corrections within the GW approximation in our work not only yields
    band gaps in much better agreement with experimental measurements than the localdensity
    approximation, but also predicts slightly larger electron effective masses."
article_type: original
author:
- first_name: Mohammed
  full_name: Bouhassoune, Mohammed
  last_name: Bouhassoune
- first_name: Arno
  full_name: Schindlmayr, Arno
  id: '458'
  last_name: Schindlmayr
  orcid: 0000-0002-4855-071X
citation:
  ama: Bouhassoune M, Schindlmayr A. Electronic structure and effective masses in
    strained silicon. <i>Physica Status Solidi C</i>. 2010;7(2):460-463. doi:<a href="https://doi.org/10.1002/pssc.200982470">10.1002/pssc.200982470</a>
  apa: Bouhassoune, M., &#38; Schindlmayr, A. (2010). Electronic structure and effective
    masses in strained silicon. <i>Physica Status Solidi C</i>, <i>7</i>(2), 460–463.
    <a href="https://doi.org/10.1002/pssc.200982470">https://doi.org/10.1002/pssc.200982470</a>
  bibtex: '@article{Bouhassoune_Schindlmayr_2010, title={Electronic structure and
    effective masses in strained silicon}, volume={7}, DOI={<a href="https://doi.org/10.1002/pssc.200982470">10.1002/pssc.200982470</a>},
    number={2}, journal={Physica Status Solidi C}, publisher={Wiley-VCH}, author={Bouhassoune,
    Mohammed and Schindlmayr, Arno}, year={2010}, pages={460–463} }'
  chicago: 'Bouhassoune, Mohammed, and Arno Schindlmayr. “Electronic Structure and
    Effective Masses in Strained Silicon.” <i>Physica Status Solidi C</i> 7, no. 2
    (2010): 460–63. <a href="https://doi.org/10.1002/pssc.200982470">https://doi.org/10.1002/pssc.200982470</a>.'
  ieee: 'M. Bouhassoune and A. Schindlmayr, “Electronic structure and effective masses
    in strained silicon,” <i>Physica Status Solidi C</i>, vol. 7, no. 2, pp. 460–463,
    2010, doi: <a href="https://doi.org/10.1002/pssc.200982470">10.1002/pssc.200982470</a>.'
  mla: Bouhassoune, Mohammed, and Arno Schindlmayr. “Electronic Structure and Effective
    Masses in Strained Silicon.” <i>Physica Status Solidi C</i>, vol. 7, no. 2, Wiley-VCH,
    2010, pp. 460–63, doi:<a href="https://doi.org/10.1002/pssc.200982470">10.1002/pssc.200982470</a>.
  short: M. Bouhassoune, A. Schindlmayr, Physica Status Solidi C 7 (2010) 460–463.
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: 2020-08-28T11:35:38Z
date_updated: 2025-12-16T08:10:05Z
ddc:
- '530'
department:
- _id: '296'
- _id: '35'
- _id: '15'
- _id: '170'
- _id: '230'
doi: 10.1002/pssc.200982470
external_id:
  isi:
  - '000284313000081'
file:
- access_level: closed
  content_type: application/pdf
  creator: schindlm
  date_created: 2020-08-28T14:38:30Z
  date_updated: 2020-08-30T15:13:32Z
  description: © 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
  file_id: '18582'
  file_name: pssc.200982470.pdf
  file_size: 118792
  relation: main_file
  title: Electronic structure and effective masses in strained silicon
file_date_updated: 2020-08-30T15:13:32Z
has_accepted_license: '1'
intvolume: '         7'
isi: '1'
issue: '2'
language:
- iso: eng
page: 460-463
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: Electronic structure and effective masses in strained silicon
type: journal_article
user_id: '16199'
volume: 7
year: '2010'
...
---
_id: '18549'
abstract:
- lang: eng
  text: We describe the software package SPEX, which allows first-principles calculations
    of quasiparticle and collective electronic excitations in solids using techniques
    from many-body perturbation theory. The implementation is based on the full-potential
    linearized augmented-plane-wave (FLAPW) method, which treats core and valence
    electrons on an equal footing and can be applied to a wide range of materials,
    including transition metals and rare earths. After a discussion of essential features
    that contribute to the high numerical efficiency of the code, we present illustrative
    results for quasiparticle band structures calculated within the GW approximation
    for the electronic self-energy, electron-energy-loss spectra with inter- and intraband
    transitions as well as local-field effects, and spin-wave spectra of itinerant
    ferromagnets. In all cases the inclusion of many-body correlation terms leads
    to very good quantitative agreement with experimental spectroscopies.
author:
- first_name: Arno
  full_name: Schindlmayr, Arno
  id: '458'
  last_name: Schindlmayr
  orcid: 0000-0002-4855-071X
- first_name: Christoph
  full_name: Friedrich, Christoph
  last_name: Friedrich
- first_name: Ersoy
  full_name: Şaşıoğlu, Ersoy
  last_name: Şaşıoğlu
- first_name: Stefan
  full_name: Blügel, Stefan
  last_name: Blügel
citation:
  ama: 'Schindlmayr A, Friedrich C, Şaşıoğlu E, Blügel S. First-principles calculation
    of electronic excitations in solids with SPEX. In: Dolg FM, ed. <i>Modern and
    Universal First-Principles Methods for Many-Electron Systems in Chemistry and
    Physics</i>. Vol 3. Progress in Physical Chemistry. Oldenbourg; 2010:67-78. doi:<a
    href="https://doi.org/10.1524/9783486711639.67">10.1524/9783486711639.67</a>'
  apa: Schindlmayr, A., Friedrich, C., Şaşıoğlu, E., &#38; Blügel, S. (2010). First-principles
    calculation of electronic excitations in solids with SPEX. In F. M. Dolg (Ed.),
    <i>Modern and Universal First-Principles Methods for Many-Electron Systems in
    Chemistry and Physics</i> (Vol. 3, pp. 67–78). Oldenbourg. <a href="https://doi.org/10.1524/9783486711639.67">https://doi.org/10.1524/9783486711639.67</a>
  bibtex: '@inbook{Schindlmayr_Friedrich_Şaşıoğlu_Blügel_2010, place={München}, series={Progress
    in Physical Chemistry}, title={First-principles calculation of electronic excitations
    in solids with SPEX}, volume={3}, DOI={<a href="https://doi.org/10.1524/9783486711639.67">10.1524/9783486711639.67</a>},
    booktitle={Modern and Universal First-Principles Methods for Many-Electron Systems
    in Chemistry and Physics}, publisher={Oldenbourg}, author={Schindlmayr, Arno and
    Friedrich, Christoph and Şaşıoğlu, Ersoy and Blügel, Stefan}, editor={Dolg, Franz
    Michael}, year={2010}, pages={67–78}, collection={Progress in Physical Chemistry}
    }'
  chicago: 'Schindlmayr, Arno, Christoph Friedrich, Ersoy Şaşıoğlu, and Stefan Blügel.
    “First-Principles Calculation of Electronic Excitations in Solids with SPEX.”
    In <i>Modern and Universal First-Principles Methods for Many-Electron Systems
    in Chemistry and Physics</i>, edited by Franz Michael Dolg, 3:67–78. Progress
    in Physical Chemistry. München: Oldenbourg, 2010. <a href="https://doi.org/10.1524/9783486711639.67">https://doi.org/10.1524/9783486711639.67</a>.'
  ieee: 'A. Schindlmayr, C. Friedrich, E. Şaşıoğlu, and S. Blügel, “First-principles
    calculation of electronic excitations in solids with SPEX,” in <i>Modern and Universal
    First-Principles Methods for Many-Electron Systems in Chemistry and Physics</i>,
    vol. 3, F. M. Dolg, Ed. München: Oldenbourg, 2010, pp. 67–78.'
  mla: Schindlmayr, Arno, et al. “First-Principles Calculation of Electronic Excitations
    in Solids with SPEX.” <i>Modern and Universal First-Principles Methods for Many-Electron
    Systems in Chemistry and Physics</i>, edited by Franz Michael Dolg, vol. 3, Oldenbourg,
    2010, pp. 67–78, doi:<a href="https://doi.org/10.1524/9783486711639.67">10.1524/9783486711639.67</a>.
  short: 'A. Schindlmayr, C. Friedrich, E. Şaşıoğlu, S. Blügel, in: F.M. Dolg (Ed.),
    Modern and Universal First-Principles Methods for Many-Electron Systems in Chemistry
    and Physics, Oldenbourg, München, 2010, pp. 67–78.'
date_created: 2020-08-28T11:03:04Z
date_updated: 2025-12-16T08:09:01Z
department:
- _id: '296'
- _id: '35'
- _id: '15'
- _id: '170'
- _id: '230'
doi: 10.1524/9783486711639.67
editor:
- first_name: Franz Michael
  full_name: Dolg, Franz Michael
  last_name: Dolg
intvolume: '         3'
language:
- iso: eng
page: 67-78
place: München
publication: Modern and Universal First-Principles Methods for Many-Electron Systems
  in Chemistry and Physics
publication_identifier:
  eisbn:
  - 978-3-486-71163-9
  isbn:
  - 978-3-486-59827-8
publication_status: published
publisher: Oldenbourg
quality_controlled: '1'
series_title: Progress in Physical Chemistry
status: public
title: First-principles calculation of electronic excitations in solids with SPEX
type: book_chapter
user_id: '16199'
volume: 3
year: '2010'
...
---
_id: '18560'
abstract:
- lang: eng
  text: We present a computational scheme to study spin excitations in magnetic materials
    from first principles. The central quantity is the transverse spin susceptibility,
    from which the complete excitation spectrum, including single-particle spin-flip
    Stoner excitations and collective spin-wave modes, can be obtained. The susceptibility
    is derived from many-body perturbation theory and includes dynamic correlation
    through a summation over ladder diagrams that describe the coupling of electrons
    and holes with opposite spins. In contrast to earlier studies, we do not use a
    model potential with adjustable parameters for the electron-hole interaction but
    employ the random-phase approximation. To reduce the numerical cost for the calculation
    of the four-point scattering matrix we perform a projection onto maximally localized
    Wannier functions, which allows us to truncate the matrix efficiently by exploiting
    the short spatial range of electronic correlation in the partially filled d or
    f orbitals. Our implementation is based on the full-potential linearized augmented-plane-wave
    method. Starting from a ground-state calculation within the local-spin-density
    approximation (LSDA), we first analyze the matrix elements of the screened Coulomb
    potential in the Wannier basis for the 3d transition-metal series. In particular,
    we discuss the differences between a constrained nonmagnetic and a proper spin-polarized
    treatment for the ferromagnets Fe, Co, and Ni. The spectrum of single-particle
    and collective spin excitations in fcc Ni is then studied in detail. The calculated
    spin-wave dispersion is in good overall agreement with experimental data and contains
    both an acoustic and an optical branch for intermediate wave vectors along the
    [100] direction. In addition, we find evidence for a similar double-peak structure
    in the spectral function along the [111] direction. To investigate the influence
    of static correlation we finally consider LSDA+U as an alternative starting point
    and show that, together with an improved description of the Fermi surface, it
    yields a more accurate quantitative value for the spin-wave stiffness constant,
    which is overestimated in the LSDA.
article_number: '054434'
article_type: original
author:
- first_name: Ersoy
  full_name: Şaşıoğlu, Ersoy
  last_name: Şaşıoğlu
- first_name: Arno
  full_name: Schindlmayr, Arno
  id: '458'
  last_name: Schindlmayr
  orcid: 0000-0002-4855-071X
- first_name: Christoph
  full_name: Friedrich, Christoph
  last_name: Friedrich
- first_name: Frank
  full_name: Freimuth, Frank
  last_name: Freimuth
- first_name: Stefan
  full_name: Blügel, Stefan
  last_name: Blügel
citation:
  ama: Şaşıoğlu E, Schindlmayr A, Friedrich C, Freimuth F, Blügel S. Wannier-function
    approach to spin excitations in solids. <i>Physical Review B</i>. 2010;81(5).
    doi:<a href="https://doi.org/10.1103/PhysRevB.81.054434">10.1103/PhysRevB.81.054434</a>
  apa: Şaşıoğlu, E., Schindlmayr, A., Friedrich, C., Freimuth, F., &#38; Blügel, S.
    (2010). Wannier-function approach to spin excitations in solids. <i>Physical Review
    B</i>, <i>81</i>(5), Article 054434. <a href="https://doi.org/10.1103/PhysRevB.81.054434">https://doi.org/10.1103/PhysRevB.81.054434</a>
  bibtex: '@article{Şaşıoğlu_Schindlmayr_Friedrich_Freimuth_Blügel_2010, title={Wannier-function
    approach to spin excitations in solids}, volume={81}, DOI={<a href="https://doi.org/10.1103/PhysRevB.81.054434">10.1103/PhysRevB.81.054434</a>},
    number={5054434}, journal={Physical Review B}, publisher={American Physical Society},
    author={Şaşıoğlu, Ersoy and Schindlmayr, Arno and Friedrich, Christoph and Freimuth,
    Frank and Blügel, Stefan}, year={2010} }'
  chicago: Şaşıoğlu, Ersoy, Arno Schindlmayr, Christoph Friedrich, Frank Freimuth,
    and Stefan Blügel. “Wannier-Function Approach to Spin Excitations in Solids.”
    <i>Physical Review B</i> 81, no. 5 (2010). <a href="https://doi.org/10.1103/PhysRevB.81.054434">https://doi.org/10.1103/PhysRevB.81.054434</a>.
  ieee: 'E. Şaşıoğlu, A. Schindlmayr, C. Friedrich, F. Freimuth, and S. Blügel, “Wannier-function
    approach to spin excitations in solids,” <i>Physical Review B</i>, vol. 81, no.
    5, Art. no. 054434, 2010, doi: <a href="https://doi.org/10.1103/PhysRevB.81.054434">10.1103/PhysRevB.81.054434</a>.'
  mla: Şaşıoğlu, Ersoy, et al. “Wannier-Function Approach to Spin Excitations in Solids.”
    <i>Physical Review B</i>, vol. 81, no. 5, 054434, American Physical Society, 2010,
    doi:<a href="https://doi.org/10.1103/PhysRevB.81.054434">10.1103/PhysRevB.81.054434</a>.
  short: E. Şaşıoğlu, A. Schindlmayr, C. Friedrich, F. Freimuth, S. Blügel, Physical
    Review B 81 (2010).
date_created: 2020-08-28T11:31:26Z
date_updated: 2025-12-16T11:09:51Z
ddc:
- '530'
department:
- _id: '296'
- _id: '35'
- _id: '15'
- _id: '170'
- _id: '230'
doi: 10.1103/PhysRevB.81.054434
external_id:
  arxiv:
  - '1002.4897'
  isi:
  - '000274998000084'
file:
- access_level: open_access
  content_type: application/pdf
  creator: schindlm
  date_created: 2020-08-28T11:33:17Z
  date_updated: 2020-08-30T15:06:10Z
  description: © 2010 American Physical Society
  file_id: '18561'
  file_name: PhysRevB.81.054434.pdf
  file_size: 711970
  relation: main_file
  title: Wannier-function approach to spin excitations in solids
file_date_updated: 2020-08-30T15:06:10Z
has_accepted_license: '1'
intvolume: '        81'
isi: '1'
issue: '5'
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'
status: public
title: Wannier-function approach to spin excitations in solids
type: journal_article
user_id: '16199'
volume: 81
year: '2010'
...
---
_id: '18557'
abstract:
- lang: eng
  text: We describe the software package SPEX, which allows first-principles calculations
    of quasiparticle and collective electronic excitations in solids using techniques
    from many-body perturbation theory. The implementation is based on the full-potential
    linearized augmented-plane-wave (FLAPW) method, which treats core and valence
    electrons on an equal footing and can be applied to a wide range of materials,
    including transition metals and rare earths. After a discussion of essential features
    that contribute to the high numerical efficiency of the code, we present illustrative
    results for quasiparticle band structures calculated within the GW approximation
    for the electronic self-energy, electron-energy-loss spectra with inter- and intraband
    transitions as well as local-field effects, and spin-wave spectra of itinerant
    ferromagnets. In all cases the inclusion of many-body correlation terms leads
    to very good quantitative agreement with experimental spectroscopies.
article_type: original
author:
- first_name: Arno
  full_name: Schindlmayr, Arno
  id: '458'
  last_name: Schindlmayr
  orcid: 0000-0002-4855-071X
- first_name: Christoph
  full_name: Friedrich, Christoph
  last_name: Friedrich
- first_name: Ersoy
  full_name: Şaşıoğlu, Ersoy
  last_name: Şaşıoğlu
- first_name: Stefan
  full_name: Blügel, Stefan
  last_name: Blügel
citation:
  ama: Schindlmayr A, Friedrich C, Şaşıoğlu E, Blügel S. First-principles calculation
    of electronic excitations in solids with SPEX. <i>Zeitschrift für Physikalische
    Chemie</i>. 2010;224(3-4):357-368. doi:<a href="https://doi.org/10.1524/zpch.2010.6110">10.1524/zpch.2010.6110</a>
  apa: Schindlmayr, A., Friedrich, C., Şaşıoğlu, E., &#38; Blügel, S. (2010). First-principles
    calculation of electronic excitations in solids with SPEX. <i>Zeitschrift Für
    Physikalische Chemie</i>, <i>224</i>(3–4), 357–368. <a href="https://doi.org/10.1524/zpch.2010.6110">https://doi.org/10.1524/zpch.2010.6110</a>
  bibtex: '@article{Schindlmayr_Friedrich_Şaşıoğlu_Blügel_2010, title={First-principles
    calculation of electronic excitations in solids with SPEX}, volume={224}, DOI={<a
    href="https://doi.org/10.1524/zpch.2010.6110">10.1524/zpch.2010.6110</a>}, number={3–4},
    journal={Zeitschrift für Physikalische Chemie}, publisher={Oldenbourg}, author={Schindlmayr,
    Arno and Friedrich, Christoph and Şaşıoğlu, Ersoy and Blügel, Stefan}, year={2010},
    pages={357–368} }'
  chicago: 'Schindlmayr, Arno, Christoph Friedrich, Ersoy Şaşıoğlu, and Stefan Blügel.
    “First-Principles Calculation of Electronic Excitations in Solids with SPEX.”
    <i>Zeitschrift Für Physikalische Chemie</i> 224, no. 3–4 (2010): 357–68. <a href="https://doi.org/10.1524/zpch.2010.6110">https://doi.org/10.1524/zpch.2010.6110</a>.'
  ieee: 'A. Schindlmayr, C. Friedrich, E. Şaşıoğlu, and S. Blügel, “First-principles
    calculation of electronic excitations in solids with SPEX,” <i>Zeitschrift für
    Physikalische Chemie</i>, vol. 224, no. 3–4, pp. 357–368, 2010, doi: <a href="https://doi.org/10.1524/zpch.2010.6110">10.1524/zpch.2010.6110</a>.'
  mla: Schindlmayr, Arno, et al. “First-Principles Calculation of Electronic Excitations
    in Solids with SPEX.” <i>Zeitschrift Für Physikalische Chemie</i>, vol. 224, no.
    3–4, Oldenbourg, 2010, pp. 357–68, doi:<a href="https://doi.org/10.1524/zpch.2010.6110">10.1524/zpch.2010.6110</a>.
  short: A. Schindlmayr, C. Friedrich, E. Şaşıoğlu, S. Blügel, Zeitschrift Für Physikalische
    Chemie 224 (2010) 357–368.
date_created: 2020-08-28T11:20:50Z
date_updated: 2025-12-16T11:09:01Z
ddc:
- '530'
department:
- _id: '296'
- _id: '35'
- _id: '15'
- _id: '170'
- _id: '230'
doi: 10.1524/zpch.2010.6110
external_id:
  arxiv:
  - '1110.1596'
  isi:
  - '000281124800006'
file:
- access_level: closed
  content_type: application/pdf
  creator: schindlm
  date_created: 2020-08-28T14:34:10Z
  date_updated: 2020-08-30T15:04:39Z
  description: © 2010 Oldenbourg Wissenschaftsverlag, München
  file_id: '18581'
  file_name: zpch.2010.6110.pdf
  file_size: 912086
  relation: main_file
  title: First-principles calculation of electronic excitations in solids with SPEX
file_date_updated: 2020-08-30T15:04:39Z
has_accepted_license: '1'
intvolume: '       224'
isi: '1'
issue: 3-4
language:
- iso: eng
page: 357-368
publication: Zeitschrift für Physikalische Chemie
publication_identifier:
  eissn:
  - 2196-7156
  issn:
  - 0942-9352
publication_status: published
publisher: Oldenbourg
quality_controlled: '1'
status: public
title: First-principles calculation of electronic excitations in solids with SPEX
type: journal_article
user_id: '16199'
volume: 224
year: '2010'
...
---
_id: '4177'
abstract:
- lang: eng
  text: "Excitonic spectra of weakly disordered semiconductor heterostructures are
    simulated on the basis of a\r\none-dimensional tight-binding model. The influence
    of the length scale of weak disorder in quantum wells on\r\nthe redshift of the
    excitonic peak and its linewidth is studied. By calculating two-dimensional Fouriertransform\r\nspectra
    we are able to determine the contribution of disorder to inhomogeneous and also
    to homogeneous\r\nbroadenings separately. This disorder-induced dephasing is related
    to a Fano-type coupling and leads\r\nto contributions to the homogeneous linewidth
    that depends on energy within the inhomogeneously broadened\r\nline. The model
    includes heavy- and light-hole excitons and yields smaller inhomogeneous broadening
    for the\r\nlight-hole exciton if compared to the heavy-hole exciton, which agrees
    qualitatively with the experiment."
article_number: '075307'
article_type: original
author:
- first_name: I.
  full_name: Kuznetsova, I.
  last_name: Kuznetsova
- first_name: N.
  full_name: Gőgh, N.
  last_name: Gőgh
- 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. T.
  full_name: Cundiff, S. T.
  last_name: Cundiff
- first_name: I.
  full_name: Varga, I.
  last_name: Varga
- first_name: P.
  full_name: Thomas, P.
  last_name: Thomas
citation:
  ama: Kuznetsova I, Gőgh N, Förstner J, et al. Modeling excitonic line shapes in
    weakly disordered semiconductor nanostructures. <i>Physical Review B</i>. 2010;81(7).
    doi:<a href="https://doi.org/10.1103/physrevb.81.075307">10.1103/physrevb.81.075307</a>
  apa: Kuznetsova, I., Gőgh, N., Förstner, J., Meier, T., Cundiff, S. T., Varga, I.,
    &#38; Thomas, P. (2010). Modeling excitonic line shapes in weakly disordered semiconductor
    nanostructures. <i>Physical Review B</i>, <i>81</i>(7), Article 075307. <a href="https://doi.org/10.1103/physrevb.81.075307">https://doi.org/10.1103/physrevb.81.075307</a>
  bibtex: '@article{Kuznetsova_Gőgh_Förstner_Meier_Cundiff_Varga_Thomas_2010, title={Modeling
    excitonic line shapes in weakly disordered semiconductor nanostructures}, volume={81},
    DOI={<a href="https://doi.org/10.1103/physrevb.81.075307">10.1103/physrevb.81.075307</a>},
    number={7075307}, journal={Physical Review B}, publisher={American Physical Society
    (APS)}, author={Kuznetsova, I. and Gőgh, N. and Förstner, Jens and Meier, Torsten
    and Cundiff, S. T. and Varga, I. and Thomas, P.}, year={2010} }'
  chicago: Kuznetsova, I., N. Gőgh, Jens Förstner, Torsten Meier, S. T. Cundiff, I.
    Varga, and P. Thomas. “Modeling Excitonic Line Shapes in Weakly Disordered Semiconductor
    Nanostructures.” <i>Physical Review B</i> 81, no. 7 (2010). <a href="https://doi.org/10.1103/physrevb.81.075307">https://doi.org/10.1103/physrevb.81.075307</a>.
  ieee: 'I. Kuznetsova <i>et al.</i>, “Modeling excitonic line shapes in weakly disordered
    semiconductor nanostructures,” <i>Physical Review B</i>, vol. 81, no. 7, Art.
    no. 075307, 2010, doi: <a href="https://doi.org/10.1103/physrevb.81.075307">10.1103/physrevb.81.075307</a>.'
  mla: Kuznetsova, I., et al. “Modeling Excitonic Line Shapes in Weakly Disordered
    Semiconductor Nanostructures.” <i>Physical Review B</i>, vol. 81, no. 7, 075307,
    American Physical Society (APS), 2010, doi:<a href="https://doi.org/10.1103/physrevb.81.075307">10.1103/physrevb.81.075307</a>.
  short: I. Kuznetsova, N. Gőgh, J. Förstner, T. Meier, S.T. Cundiff, I. Varga, P.
    Thomas, Physical Review B 81 (2010).
date_created: 2018-08-28T09:09:37Z
date_updated: 2025-12-16T11:24:45Z
ddc:
- '530'
department:
- _id: '15'
- _id: '293'
- _id: '170'
- _id: '230'
- _id: '35'
- _id: '34'
- _id: '61'
doi: 10.1103/physrevb.81.075307
file:
- access_level: closed
  content_type: application/pdf
  creator: hclaudia
  date_created: 2018-08-28T09:13:01Z
  date_updated: 2018-08-28T09:13:01Z
  file_id: '4178'
  file_name: 2010 Kuznetsova,Gögh,Förstner,Meier T,Cundiff, Varga,Thomas_Modeling
    excitonic line shapes in weakly disordered semiconductor nanostructures.pdf
  file_size: 713758
  relation: main_file
  success: 1
file_date_updated: 2018-08-28T09:13:01Z
has_accepted_license: '1'
intvolume: '        81'
issue: '7'
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: Modeling excitonic line shapes in weakly disordered semiconductor nanostructures
type: journal_article
user_id: '16199'
volume: 81
year: '2010'
...
---
_id: '4125'
abstract:
- lang: eng
  text: We numerically investigate the behavior of Whispering Gallery Modes (WGMs)
    in circularly shaped resonators like microdisks, with diameters in the range of
    optical vacuum wavelengths. The microdisk is embedded in an uniaxial anisotropic
    dielectric environment. By changing the optical anisotropy, one obtains spectral
    tunability of the optical modes. The degree of tunability strongly depends on
    the radial (azimuthal) mode order M (N). As the modes approach each other spectrally,
    anticrossing is observed, leading to a rearrangement of the optical states.
article_type: original
author:
- first_name: S.
  full_name: Declair, S.
  last_name: Declair
- first_name: Cedrik
  full_name: Meier, Cedrik
  id: '20798'
  last_name: Meier
  orcid: https://orcid.org/0000-0002-3787-3572
- 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: Declair S, Meier C, Meier T, Förstner J. Anticrossing of Whispering Gallery
    Modes in microdisk resonators embedded in an anisotropic environment. <i>Photonics
    and Nanostructures - Fundamentals and Applications</i>. 2010;8(4):273-277. doi:<a
    href="https://doi.org/10.1016/j.photonics.2010.03.002">10.1016/j.photonics.2010.03.002</a>
  apa: Declair, S., Meier, C., Meier, T., &#38; Förstner, J. (2010). Anticrossing
    of Whispering Gallery Modes in microdisk resonators embedded in an anisotropic
    environment. <i>Photonics and Nanostructures - Fundamentals and Applications</i>,
    <i>8</i>(4), 273–277. <a href="https://doi.org/10.1016/j.photonics.2010.03.002">https://doi.org/10.1016/j.photonics.2010.03.002</a>
  bibtex: '@article{Declair_Meier_Meier_Förstner_2010, title={Anticrossing of Whispering
    Gallery Modes in microdisk resonators embedded in an anisotropic environment},
    volume={8}, DOI={<a href="https://doi.org/10.1016/j.photonics.2010.03.002">10.1016/j.photonics.2010.03.002</a>},
    number={4}, journal={Photonics and Nanostructures - Fundamentals and Applications},
    publisher={Elsevier BV}, author={Declair, S. and Meier, Cedrik and Meier, Torsten
    and Förstner, Jens}, year={2010}, pages={273–277} }'
  chicago: 'Declair, S., Cedrik Meier, Torsten Meier, and Jens Förstner. “Anticrossing
    of Whispering Gallery Modes in Microdisk Resonators Embedded in an Anisotropic
    Environment.” <i>Photonics and Nanostructures - Fundamentals and Applications</i>
    8, no. 4 (2010): 273–77. <a href="https://doi.org/10.1016/j.photonics.2010.03.002">https://doi.org/10.1016/j.photonics.2010.03.002</a>.'
  ieee: 'S. Declair, C. Meier, T. Meier, and J. Förstner, “Anticrossing of Whispering
    Gallery Modes in microdisk resonators embedded in an anisotropic environment,”
    <i>Photonics and Nanostructures - Fundamentals and Applications</i>, vol. 8, no.
    4, pp. 273–277, 2010, doi: <a href="https://doi.org/10.1016/j.photonics.2010.03.002">10.1016/j.photonics.2010.03.002</a>.'
  mla: Declair, S., et al. “Anticrossing of Whispering Gallery Modes in Microdisk
    Resonators Embedded in an Anisotropic Environment.” <i>Photonics and Nanostructures
    - Fundamentals and Applications</i>, vol. 8, no. 4, Elsevier BV, 2010, pp. 273–77,
    doi:<a href="https://doi.org/10.1016/j.photonics.2010.03.002">10.1016/j.photonics.2010.03.002</a>.
  short: S. Declair, C. Meier, T. Meier, J. Förstner, Photonics and Nanostructures
    - Fundamentals and Applications 8 (2010) 273–277.
date_created: 2018-08-27T10:19:59Z
date_updated: 2025-12-16T11:23:48Z
ddc:
- '530'
department:
- _id: '15'
- _id: '230'
- _id: '293'
- _id: '287'
- _id: '35'
- _id: '170'
- _id: '35'
- _id: '34'
- _id: '61'
doi: 10.1016/j.photonics.2010.03.002
file:
- access_level: closed
  content_type: application/pdf
  creator: hclaudia
  date_created: 2018-08-27T10:21:38Z
  date_updated: 2018-08-27T10:21:38Z
  file_id: '4126'
  file_name: 2010 Declair,Meier C, Meier T, Förstner_Anticrossing of Whispering Gallery
    Modes in microdisk resonators embedded in an anisotropic environment.pdf
  file_size: 304758
  relation: main_file
  success: 1
file_date_updated: 2018-08-27T10:21:38Z
has_accepted_license: '1'
intvolume: '         8'
issue: '4'
keyword:
- tet_topic_microdisk
language:
- iso: eng
page: 273-277
publication: Photonics and Nanostructures - Fundamentals and Applications
publication_identifier:
  issn:
  - 1569-4410
publication_status: published
publisher: Elsevier BV
status: public
title: Anticrossing of Whispering Gallery Modes in microdisk resonators embedded in
  an anisotropic environment
type: journal_article
user_id: '16199'
volume: 8
year: '2010'
...
---
_id: '4547'
abstract:
- lang: eng
  text: The coherent state manipulation of single quantum systems is a fundamental
    requirement for the implementation of quantum information processors. Exciton
    qubits are of particular interest for coherent optoelectronic applications, in
    particular due to their excellent coupling to photons. Until now, coherent manipulations
    of exciton qubits in semiconductor quantum dots have been performed predominantly
    by pulsed laser fields. Coherent control of the population of excitonic states
    with a single laser pulse, observed by Rabi oscillations, has been demonstrated
    by several groups using different techniques1,2,3. By using two laser pulses,
    more general state control can be achieved4, and coupling of two excitons has
    been reported5,6. Here, we present a conceptually new approach for implementing
    the coherent control of an exciton two-level system (qubit) by means of a time-dependent
    electric interaction. The new scheme makes use of an optical clock signal and
    a synchronous electric gate signal, which controls the coherent manipulation.
article_type: original
author:
- first_name: S.
  full_name: Michaelis de Vasconcellos, S.
  last_name: Michaelis de Vasconcellos
- first_name: S.
  full_name: Gordon, S.
  last_name: Gordon
- first_name: M.
  full_name: Bichler, M.
  last_name: Bichler
- first_name: Torsten
  full_name: Meier, Torsten
  id: '344'
  last_name: Meier
  orcid: 0000-0001-8864-2072
- first_name: Artur
  full_name: Zrenner, Artur
  id: '606'
  last_name: Zrenner
  orcid: 0000-0002-5190-0944
citation:
  ama: Michaelis de Vasconcellos S, Gordon S, Bichler M, Meier T, Zrenner A. Coherent
    control of a single exciton qubit by optoelectronic manipulation. <i>Nature Photonics</i>.
    2010;4(8):545-548. doi:<a href="https://doi.org/10.1038/nphoton.2010.124">10.1038/nphoton.2010.124</a>
  apa: Michaelis de Vasconcellos, S., Gordon, S., Bichler, M., Meier, T., &#38; Zrenner,
    A. (2010). Coherent control of a single exciton qubit by optoelectronic manipulation.
    <i>Nature Photonics</i>, <i>4</i>(8), 545–548. <a href="https://doi.org/10.1038/nphoton.2010.124">https://doi.org/10.1038/nphoton.2010.124</a>
  bibtex: '@article{Michaelis de Vasconcellos_Gordon_Bichler_Meier_Zrenner_2010, title={Coherent
    control of a single exciton qubit by optoelectronic manipulation}, volume={4},
    DOI={<a href="https://doi.org/10.1038/nphoton.2010.124">10.1038/nphoton.2010.124</a>},
    number={8}, journal={Nature Photonics}, publisher={Springer Nature}, author={Michaelis
    de Vasconcellos, S. and Gordon, S. and Bichler, M. and Meier, Torsten and Zrenner,
    Artur}, year={2010}, pages={545–548} }'
  chicago: 'Michaelis de Vasconcellos, S., S. Gordon, M. Bichler, Torsten Meier, and
    Artur Zrenner. “Coherent Control of a Single Exciton Qubit by Optoelectronic Manipulation.”
    <i>Nature Photonics</i> 4, no. 8 (2010): 545–48. <a href="https://doi.org/10.1038/nphoton.2010.124">https://doi.org/10.1038/nphoton.2010.124</a>.'
  ieee: 'S. Michaelis de Vasconcellos, S. Gordon, M. Bichler, T. Meier, and A. Zrenner,
    “Coherent control of a single exciton qubit by optoelectronic manipulation,” <i>Nature
    Photonics</i>, vol. 4, no. 8, pp. 545–548, 2010, doi: <a href="https://doi.org/10.1038/nphoton.2010.124">10.1038/nphoton.2010.124</a>.'
  mla: Michaelis de Vasconcellos, S., et al. “Coherent Control of a Single Exciton
    Qubit by Optoelectronic Manipulation.” <i>Nature Photonics</i>, vol. 4, no. 8,
    Springer Nature, 2010, pp. 545–48, doi:<a href="https://doi.org/10.1038/nphoton.2010.124">10.1038/nphoton.2010.124</a>.
  short: S. Michaelis de Vasconcellos, S. Gordon, M. Bichler, T. Meier, A. Zrenner,
    Nature Photonics 4 (2010) 545–548.
date_created: 2018-09-20T12:19:52Z
date_updated: 2025-12-16T11:22:52Z
department:
- _id: '15'
- _id: '230'
- _id: '35'
- _id: '170'
- _id: '293'
- _id: '35'
doi: 10.1038/nphoton.2010.124
intvolume: '         4'
issue: '8'
language:
- iso: eng
page: 545-548
publication: Nature Photonics
publication_identifier:
  issn:
  - 1749-4885
  - 1749-4893
publication_status: published
publisher: Springer Nature
status: public
title: Coherent control of a single exciton qubit by optoelectronic manipulation
type: journal_article
user_id: '16199'
volume: 4
year: '2010'
...
---
_id: '4123'
abstract:
- lang: eng
  text: GaAs-based semiconductor microdisks with high quality whispering gallery modes
    (Q44000) have been fabricated.A layer of self-organized InAs quantumdots (QDs)
    served as a light source to feed the optical modes at room temperature. In order
    to achieve frequency tuning of the optical modes, the microdisk devices have been
    immersed in 4 – cyano – 4´-pentylbiphenyl (5CB), a liquid crystal(LC) with a nematic
    phase below the clearing temperature of  TC≈34°C .We have studied the device performance
    in the temperature rangeof T=20-50°C, in order to investigate the influence of
    the nematic–isotropic phase transition on the optical modes. Moreover,we havea
    pplied an AC electric field to the device,which leads in the nematic phase to
    a reorientation of the anisotropic dielectric tensor of the liquid crystal.This
    electrical anisotropy can be used to achieve electrical tunability of the optical
    modes.Using the finite-difference time domain (FDTD) technique with an anisotropic
    material model, we are able to describe the influence of the liquid crystal qualitatively.
article_type: original
author:
- first_name: Karoline A.
  full_name: Piegdon, Karoline A.
  last_name: Piegdon
- first_name: Matthias
  full_name: Offer, Matthias
  last_name: Offer
- first_name: Axel
  full_name: Lorke, Axel
  last_name: Lorke
- first_name: Martin
  full_name: Urbanski, Martin
  last_name: Urbanski
- first_name: Andreas
  full_name: Hoischen, Andreas
  last_name: Hoischen
- first_name: Heinz-Siegfried
  full_name: Kitzerow, Heinz-Siegfried
  id: '254'
  last_name: Kitzerow
- first_name: Stefan
  full_name: Declair, Stefan
  last_name: Declair
- 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: Dirk
  full_name: Reuter, Dirk
  id: '37763'
  last_name: Reuter
- first_name: Andreas D.
  full_name: Wieck, Andreas D.
  last_name: Wieck
- first_name: Cedrik
  full_name: Meier, Cedrik
  id: '20798'
  last_name: Meier
  orcid: https://orcid.org/0000-0002-3787-3572
citation:
  ama: 'Piegdon KA, Offer M, Lorke A, et al. Self-assembled quantum dots in a liquid-crystal-tunable
    microdisk resonator. <i>Physica E: Low-dimensional Systems and Nanostructures</i>.
    2010;42(10):2552-2555. doi:<a href="https://doi.org/10.1016/j.physe.2009.12.051">10.1016/j.physe.2009.12.051</a>'
  apa: 'Piegdon, K. A., Offer, M., Lorke, A., Urbanski, M., Hoischen, A., Kitzerow,
    H.-S., Declair, S., Förstner, J., Meier, T., Reuter, D., Wieck, A. D., &#38; Meier,
    C. (2010). Self-assembled quantum dots in a liquid-crystal-tunable microdisk resonator.
    <i>Physica E: Low-Dimensional Systems and Nanostructures</i>, <i>42</i>(10), 2552–2555.
    <a href="https://doi.org/10.1016/j.physe.2009.12.051">https://doi.org/10.1016/j.physe.2009.12.051</a>'
  bibtex: '@article{Piegdon_Offer_Lorke_Urbanski_Hoischen_Kitzerow_Declair_Förstner_Meier_Reuter_et
    al._2010, title={Self-assembled quantum dots in a liquid-crystal-tunable microdisk
    resonator}, volume={42}, DOI={<a href="https://doi.org/10.1016/j.physe.2009.12.051">10.1016/j.physe.2009.12.051</a>},
    number={10}, journal={Physica E: Low-dimensional Systems and Nanostructures},
    publisher={Elsevier BV}, author={Piegdon, Karoline A. and Offer, Matthias and
    Lorke, Axel and Urbanski, Martin and Hoischen, Andreas and Kitzerow, Heinz-Siegfried
    and Declair, Stefan and Förstner, Jens and Meier, Torsten and Reuter, Dirk and
    et al.}, year={2010}, pages={2552–2555} }'
  chicago: 'Piegdon, Karoline A., Matthias Offer, Axel Lorke, Martin Urbanski, Andreas
    Hoischen, Heinz-Siegfried Kitzerow, Stefan Declair, et al. “Self-Assembled Quantum
    Dots in a Liquid-Crystal-Tunable Microdisk Resonator.” <i>Physica E: Low-Dimensional
    Systems and Nanostructures</i> 42, no. 10 (2010): 2552–55. <a href="https://doi.org/10.1016/j.physe.2009.12.051">https://doi.org/10.1016/j.physe.2009.12.051</a>.'
  ieee: 'K. A. Piegdon <i>et al.</i>, “Self-assembled quantum dots in a liquid-crystal-tunable
    microdisk resonator,” <i>Physica E: Low-dimensional Systems and Nanostructures</i>,
    vol. 42, no. 10, pp. 2552–2555, 2010, doi: <a href="https://doi.org/10.1016/j.physe.2009.12.051">10.1016/j.physe.2009.12.051</a>.'
  mla: 'Piegdon, Karoline A., et al. “Self-Assembled Quantum Dots in a Liquid-Crystal-Tunable
    Microdisk Resonator.” <i>Physica E: Low-Dimensional Systems and Nanostructures</i>,
    vol. 42, no. 10, Elsevier BV, 2010, pp. 2552–55, doi:<a href="https://doi.org/10.1016/j.physe.2009.12.051">10.1016/j.physe.2009.12.051</a>.'
  short: 'K.A. Piegdon, M. Offer, A. Lorke, M. Urbanski, A. Hoischen, H.-S. Kitzerow,
    S. Declair, J. Förstner, T. Meier, D. Reuter, A.D. Wieck, C. Meier, Physica E:
    Low-Dimensional Systems and Nanostructures 42 (2010) 2552–2555.'
date_created: 2018-08-27T10:03:35Z
date_updated: 2025-12-16T11:32:03Z
ddc:
- '530'
department:
- _id: '15'
- _id: '230'
- _id: '2'
- _id: '293'
- _id: '292'
- _id: '35'
- _id: '287'
- _id: '313'
- _id: '170'
doi: 10.1016/j.physe.2009.12.051
file:
- access_level: closed
  content_type: application/pdf
  creator: hclaudia
  date_created: 2018-08-27T10:06:57Z
  date_updated: 2018-08-27T10:06:57Z
  file_id: '4124'
  file_name: 2010 Piegdon,Offer,Lork,Urbanski,Hoischen,Kitzerwo, Declair,Förstner_Self-assembled
    quantum dots in a liquid-crystal-tunable microdisk resonator.pdf
  file_size: 403248
  relation: main_file
  success: 1
file_date_updated: 2018-08-27T10:06:57Z
has_accepted_license: '1'
intvolume: '        42'
issue: '10'
keyword:
- tet_topic_qd
- tet_topic_microdisk
language:
- iso: eng
page: 2552-2555
publication: 'Physica E: Low-dimensional Systems and Nanostructures'
publication_identifier:
  issn:
  - 1386-9477
publication_status: published
publisher: Elsevier BV
status: public
title: Self-assembled quantum dots in a liquid-crystal-tunable microdisk resonator
type: journal_article
user_id: '16199'
volume: 42
year: '2010'
...
---
_id: '4169'
abstract:
- lang: eng
  text: "It is demonstrated that valence-band mixing in GaAs quantum wells tremendously
    modifies electronic\r\ntransport. A coherent control scheme in which ultrafast
    currents are optically injected into undoped GaAs\r\nquantum wells upon excitation
    with femtosecond laser pulses is employed. An oscillatory dependence of\r\nthe
    injection current amplitude and direction on the excitation photon energy is observed.
    A microscopic\r\ntheoretical analysis shows that this current reversal is caused
    by the coupling of the light- and heavy-hole\r\nbands and that the hole currents
    dominate the overall current response. These surprising consequences of\r\nband
    mixing illuminate fundamental physics as they are unique for experiments which
    are able to monitor\r\nelectronic transport resulting from carriers with relatively
    large momenta."
article_number: '217401'
article_type: original
author:
- 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
- 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
citation:
  ama: Priyadarshi S, Racu AM, Pierz K, et al. Reversal of Coherently Controlled Ultrafast
    Photocurrents by Band Mixing in Undoped GaAs Quantum Wells. <i>Physical Review
    Letters</i>. 2010;104(21). doi:<a href="https://doi.org/10.1103/physrevlett.104.217401">10.1103/physrevlett.104.217401</a>
  apa: Priyadarshi, S., Racu, A. M., Pierz, K., Siegner, U., Bieler, M., Duc, H. T.,
    Förstner, J., &#38; Meier, T. (2010). Reversal of Coherently Controlled Ultrafast
    Photocurrents by Band Mixing in Undoped GaAs Quantum Wells. <i>Physical Review
    Letters</i>, <i>104</i>(21), Article 217401. <a href="https://doi.org/10.1103/physrevlett.104.217401">https://doi.org/10.1103/physrevlett.104.217401</a>
  bibtex: '@article{Priyadarshi_Racu_Pierz_Siegner_Bieler_Duc_Förstner_Meier_2010,
    title={Reversal of Coherently Controlled Ultrafast Photocurrents by Band Mixing
    in Undoped GaAs Quantum Wells}, volume={104}, DOI={<a href="https://doi.org/10.1103/physrevlett.104.217401">10.1103/physrevlett.104.217401</a>},
    number={21217401}, journal={Physical Review Letters}, publisher={American Physical
    Society (APS)}, author={Priyadarshi, S. and Racu, A. M. and Pierz, K. and Siegner,
    U. and Bieler, M. and Duc, H. T. and Förstner, Jens and Meier, Torsten}, year={2010}
    }'
  chicago: Priyadarshi, S., A. M. Racu, K. Pierz, U. Siegner, M. Bieler, H. T. Duc,
    Jens Förstner, and Torsten Meier. “Reversal of Coherently Controlled Ultrafast
    Photocurrents by Band Mixing in Undoped GaAs Quantum Wells.” <i>Physical Review
    Letters</i> 104, no. 21 (2010). <a href="https://doi.org/10.1103/physrevlett.104.217401">https://doi.org/10.1103/physrevlett.104.217401</a>.
  ieee: 'S. Priyadarshi <i>et al.</i>, “Reversal of Coherently Controlled Ultrafast
    Photocurrents by Band Mixing in Undoped GaAs Quantum Wells,” <i>Physical Review
    Letters</i>, vol. 104, no. 21, Art. no. 217401, 2010, doi: <a href="https://doi.org/10.1103/physrevlett.104.217401">10.1103/physrevlett.104.217401</a>.'
  mla: Priyadarshi, S., et al. “Reversal of Coherently Controlled Ultrafast Photocurrents
    by Band Mixing in Undoped GaAs Quantum Wells.” <i>Physical Review Letters</i>,
    vol. 104, no. 21, 217401, American Physical Society (APS), 2010, doi:<a href="https://doi.org/10.1103/physrevlett.104.217401">10.1103/physrevlett.104.217401</a>.
  short: S. Priyadarshi, A.M. Racu, K. Pierz, U. Siegner, M. Bieler, H.T. Duc, J.
    Förstner, T. Meier, Physical Review Letters 104 (2010).
date_created: 2018-08-28T08:40:16Z
date_updated: 2025-12-16T11:32:36Z
ddc:
- '530'
department:
- _id: '15'
- _id: '293'
- _id: '170'
- _id: '230'
- _id: '35'
- _id: '34'
- _id: '61'
- _id: '27'
doi: 10.1103/physrevlett.104.217401
file:
- access_level: closed
  content_type: application/pdf
  creator: hclaudia
  date_created: 2018-08-28T08:41:56Z
  date_updated: 2018-08-28T08:41:56Z
  file_id: '4170'
  file_name: 2010 Priyadarshi,Racu,Pierz,Siegner,Bieler,Duc,Förstner,Meier T_Reversal
    of coherently controlled ultrafast photocurrents by band mixing in undoped GaAs
    quantum wells.pdf
  file_size: 447293
  relation: main_file
  success: 1
file_date_updated: 2018-08-28T08:41:56Z
has_accepted_license: '1'
intvolume: '       104'
issue: '21'
keyword:
- tet_topic_qw
language:
- iso: eng
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Physical Review Letters
publication_identifier:
  issn:
  - 0031-9007
  - 1079-7114
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Reversal of Coherently Controlled Ultrafast Photocurrents by Band Mixing in
  Undoped GaAs Quantum Wells
type: journal_article
user_id: '16199'
volume: 104
year: '2010'
...
---
_id: '4167'
abstract:
- lang: eng
  text: "The electromagnetic field in the vicinity of sharp edges needs a special
    treatment in numeric calculation whenever accurate, fast converging results are
    necessary. One of the fundamental works concerning field singularities has been
    proposed in 1972 [1] and states that the electromagnetic energy density must be
    integrable over any finite\r\ndomain, even if this domain contains singularities.
    It is shown, that the magnetic field \x02H(\x03, ϕ) and electric field \x02E(\x03,
    ϕ) are proportional to ∝ \x03(t−1) for \x03 → 0. The variable \x03 is the distance
    to the edge and t has to fulfill the integrability condition and thus is restricted
    to 0 < t < 1. This result is often used to reduce the error corresponding to the
    singularity without increasing the numerical effort [2 - 5]. For this purpose,
    a correction factor K is estimated by inserting the proportionality into the wave
    equation. It is shown, that this method improves the accuracy of the result significantly,
    however the order of convergence is often not studied. In [4] a method to modify
    the material parameters in order to use analytic results to improve the numeric
    calculation is presented. In this contribution we will - inspired by the scheme
    given in [4] - develop a new method to estimate a correction factor for perfect
    conducting materials (PEC) and demonstrate the improvement of the results compared
    to the standard edge correction. Therefore analytic results (comparable to [1])
    are consequently merged with the scheme in [4]. The main goal of this work is
    the calculation of the second harmonic generation (SHG) in the wave response of
    so-called metamaterials [6]. Frequently these structures\r\ncontain sharp metallic
    edges with field singularities at the interfaces which have a strong impact on
    the SHG signals. Thus, an accurate simulation of singularities is highly important.
    However, the following approach can also be applied to many other setups, and
    one of them is shown in the example below."
article_number: '11515155 '
author:
- first_name: C
  full_name: Classen, C
  last_name: Classen
- 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: R
  full_name: Schuhmann, R
  last_name: Schuhmann
citation:
  ama: 'Classen C, Förstner J, Meier T, Schuhmann R. Enhanced FDTD edge correction
    for nonlinear effects calculation. In: <i>2010 IEEE Antennas and Propagation Society
    International Symposium</i>. IEEE; 2010. doi:<a href="https://doi.org/10.1109/aps.2010.5562017">10.1109/aps.2010.5562017</a>'
  apa: Classen, C., Förstner, J., Meier, T., &#38; Schuhmann, R. (2010). Enhanced
    FDTD edge correction for nonlinear effects calculation. <i>2010 IEEE Antennas
    and Propagation Society International Symposium</i>, Article 11515155. 2010 IEEE
    international Symposium Antennas, Toronto, ON, Canada. <a href="https://doi.org/10.1109/aps.2010.5562017">https://doi.org/10.1109/aps.2010.5562017</a>
  bibtex: '@inproceedings{Classen_Förstner_Meier_Schuhmann_2010, title={Enhanced FDTD
    edge correction for nonlinear effects calculation}, DOI={<a href="https://doi.org/10.1109/aps.2010.5562017">10.1109/aps.2010.5562017</a>},
    number={11515155}, booktitle={2010 IEEE Antennas and Propagation Society International
    Symposium}, publisher={IEEE}, author={Classen, C and Förstner, Jens and Meier,
    Torsten and Schuhmann, R}, year={2010} }'
  chicago: Classen, C, Jens Förstner, Torsten Meier, and R Schuhmann. “Enhanced FDTD
    Edge Correction for Nonlinear Effects Calculation.” In <i>2010 IEEE Antennas and
    Propagation Society International Symposium</i>. IEEE, 2010. <a href="https://doi.org/10.1109/aps.2010.5562017">https://doi.org/10.1109/aps.2010.5562017</a>.
  ieee: 'C. Classen, J. Förstner, T. Meier, and R. Schuhmann, “Enhanced FDTD edge
    correction for nonlinear effects calculation,” presented at the 2010 IEEE international
    Symposium Antennas, Toronto, ON, Canada, 2010, doi: <a href="https://doi.org/10.1109/aps.2010.5562017">10.1109/aps.2010.5562017</a>.'
  mla: Classen, C., et al. “Enhanced FDTD Edge Correction for Nonlinear Effects Calculation.”
    <i>2010 IEEE Antennas and Propagation Society International Symposium</i>, 11515155,
    IEEE, 2010, doi:<a href="https://doi.org/10.1109/aps.2010.5562017">10.1109/aps.2010.5562017</a>.
  short: 'C. Classen, J. Förstner, T. Meier, R. Schuhmann, in: 2010 IEEE Antennas
    and Propagation Society International Symposium, IEEE, 2010.'
conference:
  end_date: 2010-07-17
  location: Toronto, ON, Canada
  name: 2010 IEEE international Symposium Antennas
  start_date: 2010-07-11
date_created: 2018-08-28T08:34:52Z
date_updated: 2025-12-16T12:35:39Z
ddc:
- '530'
department:
- _id: '61'
- _id: '15'
- _id: '293'
- _id: '170'
- _id: '230'
- _id: '35'
- _id: '34'
doi: 10.1109/aps.2010.5562017
file:
- access_level: open_access
  content_type: application/pdf
  creator: hclaudia
  date_created: 2018-08-28T08:36:44Z
  date_updated: 2018-09-04T19:31:42Z
  file_id: '4168'
  file_name: 2010 Classen,Förstner, Meier T,Schuhmann_Enhanced FDTD edge correction
    for nonlinear effects calculation.pdf
  file_size: 209412
  relation: main_file
file_date_updated: 2018-09-04T19:31:42Z
has_accepted_license: '1'
keyword:
- tet_topic_numerics
language:
- iso: eng
oa: '1'
publication: 2010 IEEE Antennas and Propagation Society International Symposium
publication_identifier:
  isbn:
  - '9781424449675'
  - '9781424449682'
publication_status: published
publisher: IEEE
status: public
title: Enhanced FDTD edge correction for nonlinear effects calculation
type: conference
urn: '41677'
user_id: '16199'
year: '2010'
...
---
_id: '4172'
abstract:
- lang: eng
  text: "Microdisks made from GaAs with embedded InAs quantum dots are immersed in
    the liquid crystal 4-cyano-4’-pentylbiphenyl (5CB). The quantum dots serve as
    emitters feeding the optical modes of the photonic cavity. By changing temperature,
    the liquid crystal undergoes a phase transition from the isotropic to the nematic
    state, which can be used\r\nas an effective tuning mechanism of the photonic modes
    of the cavity. In the nematic state, the uniaxial electrical anisotropy of the
    liquid crystal molecules can be exploited for orienting the material in an electric
    field,\r\nthus externally controlling the birefringence of the material. Using
    this effect, an electric field induced tuning of the modes is achieved. Numerical
    simulations using the finite-differences time-domain (FDTD) technique\r\nemploying
    an anisotropic dielectric medium allow to understand the alignment of the liquid
    crystal molecules on the surface of the microdisk resonator."
article_number: '7946'
article_type: original
author:
- first_name: Karoline A.
  full_name: Piegdon, Karoline A.
  last_name: Piegdon
- first_name: Stefan
  full_name: Declair, Stefan
  last_name: Declair
- 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: Heiner
  full_name: Matthias, Heiner
  last_name: Matthias
- first_name: Martin
  full_name: Urbanski, Martin
  last_name: Urbanski
- first_name: Heinz-Siegfried
  full_name: Kitzerow, Heinz-Siegfried
  id: '254'
  last_name: Kitzerow
- first_name: Dirk
  full_name: Reuter, Dirk
  id: '37763'
  last_name: Reuter
- first_name: Andreas D.
  full_name: Wieck, Andreas D.
  last_name: Wieck
- first_name: Axel
  full_name: Lorke, Axel
  last_name: Lorke
- first_name: Cedrik
  full_name: Meier, Cedrik
  id: '20798'
  last_name: Meier
  orcid: https://orcid.org/0000-0002-3787-3572
citation:
  ama: Piegdon KA, Declair S, Förstner J, et al. Tuning quantum-dot based photonic
    devices with liquid crystals. <i>Optics Express</i>. 2010;18(8). doi:<a href="https://doi.org/10.1364/oe.18.007946">10.1364/oe.18.007946</a>
  apa: Piegdon, K. A., Declair, S., Förstner, J., Meier, T., Matthias, H., Urbanski,
    M., Kitzerow, H.-S., Reuter, D., Wieck, A. D., Lorke, A., &#38; Meier, C. (2010).
    Tuning quantum-dot based photonic devices with liquid crystals. <i>Optics Express</i>,
    <i>18</i>(8), Article 7946. <a href="https://doi.org/10.1364/oe.18.007946">https://doi.org/10.1364/oe.18.007946</a>
  bibtex: '@article{Piegdon_Declair_Förstner_Meier_Matthias_Urbanski_Kitzerow_Reuter_Wieck_Lorke_et
    al._2010, title={Tuning quantum-dot based photonic devices with liquid crystals},
    volume={18}, DOI={<a href="https://doi.org/10.1364/oe.18.007946">10.1364/oe.18.007946</a>},
    number={87946}, journal={Optics Express}, publisher={The Optical Society}, author={Piegdon,
    Karoline A. and Declair, Stefan and Förstner, Jens and Meier, Torsten and Matthias,
    Heiner and Urbanski, Martin and Kitzerow, Heinz-Siegfried and Reuter, Dirk and
    Wieck, Andreas D. and Lorke, Axel and et al.}, year={2010} }'
  chicago: Piegdon, Karoline A., Stefan Declair, Jens Förstner, Torsten Meier, Heiner
    Matthias, Martin Urbanski, Heinz-Siegfried Kitzerow, et al. “Tuning Quantum-Dot
    Based Photonic Devices with Liquid Crystals.” <i>Optics Express</i> 18, no. 8
    (2010). <a href="https://doi.org/10.1364/oe.18.007946">https://doi.org/10.1364/oe.18.007946</a>.
  ieee: 'K. A. Piegdon <i>et al.</i>, “Tuning quantum-dot based photonic devices with
    liquid crystals,” <i>Optics Express</i>, vol. 18, no. 8, Art. no. 7946, 2010,
    doi: <a href="https://doi.org/10.1364/oe.18.007946">10.1364/oe.18.007946</a>.'
  mla: Piegdon, Karoline A., et al. “Tuning Quantum-Dot Based Photonic Devices with
    Liquid Crystals.” <i>Optics Express</i>, vol. 18, no. 8, 7946, The Optical Society,
    2010, doi:<a href="https://doi.org/10.1364/oe.18.007946">10.1364/oe.18.007946</a>.
  short: K.A. Piegdon, S. Declair, J. Förstner, T. Meier, H. Matthias, M. Urbanski,
    H.-S. Kitzerow, D. Reuter, A.D. Wieck, A. Lorke, C. Meier, Optics Express 18 (2010).
date_created: 2018-08-28T08:50:06Z
date_updated: 2025-12-16T16:44:44Z
ddc:
- '530'
department:
- _id: '15'
- _id: '287'
- _id: '293'
- _id: '292'
- _id: '35'
- _id: '230'
- _id: '313'
- _id: '170'
- _id: '27'
- _id: '34'
- _id: '61'
doi: 10.1364/oe.18.007946
file:
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  file_name: 2010 Piegdon,Declair,Förstner,Meier T,Matthias,Urbanski,Kitzerow,Reuter,Wieck,Lorcke,Meier
    C_Tuning quantum-dot based photonic devices with liquid crystals.pdf
  file_size: 627755
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file_date_updated: 2018-09-04T20:02:01Z
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intvolume: '        18'
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keyword:
- tet_topic_qd
- tet_topic_microdisk
language:
- iso: eng
oa: '1'
project:
- _id: '52'
  name: Computing Resources Provided by the Paderborn Center for Parallel Computing
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Optics Express
publication_identifier:
  issn:
  - 1094-4087
publication_status: published
publisher: The Optical Society
status: public
title: Tuning quantum-dot based photonic devices with liquid crystals
type: journal_article
urn: '41725'
user_id: '16199'
volume: 18
year: '2010'
...
---
_id: '1734'
author:
- first_name: Thomas
  full_name: Zentgraf, Thomas
  id: '30525'
  last_name: Zentgraf
  orcid: 0000-0002-8662-1101
- first_name: Shuang
  full_name: Zhang, Shuang
  last_name: Zhang
- first_name: Rupert F.
  full_name: Oulton, Rupert F.
  last_name: Oulton
- first_name: Xiang
  full_name: Zhang, Xiang
  last_name: Zhang
citation:
  ama: Zentgraf T, Zhang S, Oulton RF, Zhang X. Ultranarrow coupling-induced transparency
    bands in hybrid plasmonic systems. <i>Physical Review B</i>. 2009;80(19). doi:<a
    href="https://doi.org/10.1103/physrevb.80.195415">10.1103/physrevb.80.195415</a>
  apa: Zentgraf, T., Zhang, S., Oulton, R. F., &#38; Zhang, X. (2009). Ultranarrow
    coupling-induced transparency bands in hybrid plasmonic systems. <i>Physical Review
    B</i>, <i>80</i>(19). <a href="https://doi.org/10.1103/physrevb.80.195415">https://doi.org/10.1103/physrevb.80.195415</a>
  bibtex: '@article{Zentgraf_Zhang_Oulton_Zhang_2009, title={Ultranarrow coupling-induced
    transparency bands in hybrid plasmonic systems}, volume={80}, DOI={<a href="https://doi.org/10.1103/physrevb.80.195415">10.1103/physrevb.80.195415</a>},
    number={19}, journal={Physical Review B}, publisher={American Physical Society
    (APS)}, author={Zentgraf, Thomas and Zhang, Shuang and Oulton, Rupert F. and Zhang,
    Xiang}, year={2009} }'
  chicago: Zentgraf, Thomas, Shuang Zhang, Rupert F. Oulton, and Xiang Zhang. “Ultranarrow
    Coupling-Induced Transparency Bands in Hybrid Plasmonic Systems.” <i>Physical
    Review B</i> 80, no. 19 (2009). <a href="https://doi.org/10.1103/physrevb.80.195415">https://doi.org/10.1103/physrevb.80.195415</a>.
  ieee: T. Zentgraf, S. Zhang, R. F. Oulton, and X. Zhang, “Ultranarrow coupling-induced
    transparency bands in hybrid plasmonic systems,” <i>Physical Review B</i>, vol.
    80, no. 19, 2009.
  mla: Zentgraf, Thomas, et al. “Ultranarrow Coupling-Induced Transparency Bands in
    Hybrid Plasmonic Systems.” <i>Physical Review B</i>, vol. 80, no. 19, American
    Physical Society (APS), 2009, doi:<a href="https://doi.org/10.1103/physrevb.80.195415">10.1103/physrevb.80.195415</a>.
  short: T. Zentgraf, S. Zhang, R.F. Oulton, X. Zhang, Physical Review B 80 (2009).
date_created: 2018-03-23T12:33:33Z
date_updated: 2022-01-06T06:53:08Z
department:
- _id: '15'
- _id: '230'
doi: 10.1103/physrevb.80.195415
intvolume: '        80'
issue: '19'
publication: Physical Review B
publication_identifier:
  issn:
  - 1098-0121
  - 1550-235X
publication_status: published
publisher: American Physical Society (APS)
status: public
title: Ultranarrow coupling-induced transparency bands in hybrid plasmonic systems
type: journal_article
user_id: '30525'
volume: 80
year: '2009'
...
---
_id: '1735'
author:
- first_name: Rupert F.
  full_name: Oulton, Rupert F.
  last_name: Oulton
- first_name: Volker J.
  full_name: Sorger, Volker J.
  last_name: Sorger
- first_name: Thomas
  full_name: Zentgraf, Thomas
  id: '30525'
  last_name: Zentgraf
  orcid: 0000-0002-8662-1101
- first_name: Ren-Min
  full_name: Ma, Ren-Min
  last_name: Ma
- first_name: Christopher
  full_name: Gladden, Christopher
  last_name: Gladden
- first_name: Lun
  full_name: Dai, Lun
  last_name: Dai
- first_name: Guy
  full_name: Bartal, Guy
  last_name: Bartal
- first_name: Xiang
  full_name: Zhang, Xiang
  last_name: Zhang
citation:
  ama: Oulton RF, Sorger VJ, Zentgraf T, et al. Plasmon lasers at deep subwavelength
    scale. <i>Nature</i>. 2009;461(7264):629-632. doi:<a href="https://doi.org/10.1038/nature08364">10.1038/nature08364</a>
  apa: Oulton, R. F., Sorger, V. J., Zentgraf, T., Ma, R.-M., Gladden, C., Dai, L.,
    … Zhang, X. (2009). Plasmon lasers at deep subwavelength scale. <i>Nature</i>,
    <i>461</i>(7264), 629–632. <a href="https://doi.org/10.1038/nature08364">https://doi.org/10.1038/nature08364</a>
  bibtex: '@article{Oulton_Sorger_Zentgraf_Ma_Gladden_Dai_Bartal_Zhang_2009, title={Plasmon
    lasers at deep subwavelength scale}, volume={461}, DOI={<a href="https://doi.org/10.1038/nature08364">10.1038/nature08364</a>},
    number={7264}, journal={Nature}, publisher={Springer Nature}, author={Oulton,
    Rupert F. and Sorger, Volker J. and Zentgraf, Thomas and Ma, Ren-Min and Gladden,
    Christopher and Dai, Lun and Bartal, Guy and Zhang, Xiang}, year={2009}, pages={629–632}
    }'
  chicago: 'Oulton, Rupert F., Volker J. Sorger, Thomas Zentgraf, Ren-Min Ma, Christopher
    Gladden, Lun Dai, Guy Bartal, and Xiang Zhang. “Plasmon Lasers at Deep Subwavelength
    Scale.” <i>Nature</i> 461, no. 7264 (2009): 629–32. <a href="https://doi.org/10.1038/nature08364">https://doi.org/10.1038/nature08364</a>.'
  ieee: R. F. Oulton <i>et al.</i>, “Plasmon lasers at deep subwavelength scale,”
    <i>Nature</i>, vol. 461, no. 7264, pp. 629–632, 2009.
  mla: Oulton, Rupert F., et al. “Plasmon Lasers at Deep Subwavelength Scale.” <i>Nature</i>,
    vol. 461, no. 7264, Springer Nature, 2009, pp. 629–32, doi:<a href="https://doi.org/10.1038/nature08364">10.1038/nature08364</a>.
  short: R.F. Oulton, V.J. Sorger, T. Zentgraf, R.-M. Ma, C. Gladden, L. Dai, G. Bartal,
    X. Zhang, Nature 461 (2009) 629–632.
date_created: 2018-03-23T12:35:58Z
date_updated: 2022-01-06T06:53:08Z
department:
- _id: '15'
- _id: '230'
doi: 10.1038/nature08364
intvolume: '       461'
issue: '7264'
page: 629-632
publication: Nature
publication_identifier:
  issn:
  - 0028-0836
  - 1476-4687
publication_status: published
publisher: Springer Nature
status: public
title: Plasmon lasers at deep subwavelength scale
type: journal_article
user_id: '30525'
volume: 461
year: '2009'
...
---
_id: '1736'
author:
- first_name: Jason
  full_name: Valentine, Jason
  last_name: Valentine
- first_name: Jensen
  full_name: Li, Jensen
  last_name: Li
- first_name: Thomas
  full_name: Zentgraf, Thomas
  id: '30525'
  last_name: Zentgraf
  orcid: 0000-0002-8662-1101
- first_name: Guy
  full_name: Bartal, Guy
  last_name: Bartal
- first_name: Xiang
  full_name: Zhang, Xiang
  last_name: Zhang
citation:
  ama: Valentine J, Li J, Zentgraf T, Bartal G, Zhang X. An optical cloak made of
    dielectrics. <i>Nature Materials</i>. 2009;8(7):568-571. doi:<a href="https://doi.org/10.1038/nmat2461">10.1038/nmat2461</a>
  apa: Valentine, J., Li, J., Zentgraf, T., Bartal, G., &#38; Zhang, X. (2009). An
    optical cloak made of dielectrics. <i>Nature Materials</i>, <i>8</i>(7), 568–571.
    <a href="https://doi.org/10.1038/nmat2461">https://doi.org/10.1038/nmat2461</a>
  bibtex: '@article{Valentine_Li_Zentgraf_Bartal_Zhang_2009, title={An optical cloak
    made of dielectrics}, volume={8}, DOI={<a href="https://doi.org/10.1038/nmat2461">10.1038/nmat2461</a>},
    number={7}, journal={Nature Materials}, publisher={Springer Nature}, author={Valentine,
    Jason and Li, Jensen and Zentgraf, Thomas and Bartal, Guy and Zhang, Xiang}, year={2009},
    pages={568–571} }'
  chicago: 'Valentine, Jason, Jensen Li, Thomas Zentgraf, Guy Bartal, and Xiang Zhang.
    “An Optical Cloak Made of Dielectrics.” <i>Nature Materials</i> 8, no. 7 (2009):
    568–71. <a href="https://doi.org/10.1038/nmat2461">https://doi.org/10.1038/nmat2461</a>.'
  ieee: J. Valentine, J. Li, T. Zentgraf, G. Bartal, and X. Zhang, “An optical cloak
    made of dielectrics,” <i>Nature Materials</i>, vol. 8, no. 7, pp. 568–571, 2009.
  mla: Valentine, Jason, et al. “An Optical Cloak Made of Dielectrics.” <i>Nature
    Materials</i>, vol. 8, no. 7, Springer Nature, 2009, pp. 568–71, doi:<a href="https://doi.org/10.1038/nmat2461">10.1038/nmat2461</a>.
  short: J. Valentine, J. Li, T. Zentgraf, G. Bartal, X. Zhang, Nature Materials 8
    (2009) 568–571.
date_created: 2018-03-23T12:36:19Z
date_updated: 2022-01-06T06:53:09Z
department:
- _id: '15'
- _id: '230'
doi: 10.1038/nmat2461
intvolume: '         8'
issue: '7'
page: 568-571
publication: Nature Materials
publication_identifier:
  issn:
  - 1476-1122
  - 1476-4660
publication_status: published
publisher: Springer Nature
status: public
title: An optical cloak made of dielectrics
type: journal_article
user_id: '30525'
volume: 8
year: '2009'
...
---
_id: '7973'
article_number: '022107'
author:
- first_name: S. S.
  full_name: Buchholz, S. S.
  last_name: Buchholz
- first_name: S. F.
  full_name: Fischer, S. F.
  last_name: Fischer
- first_name: U.
  full_name: Kunze, U.
  last_name: Kunze
- first_name: Dirk
  full_name: Reuter, Dirk
  id: '37763'
  last_name: Reuter
- first_name: A. D.
  full_name: Wieck, A. D.
  last_name: Wieck
citation:
  ama: Buchholz SS, Fischer SF, Kunze U, Reuter D, Wieck AD. Nonlocal Aharonov–Bohm
    conductance oscillations in an asymmetric quantum ring. <i>Applied Physics Letters</i>.
    2009;94(2). doi:<a href="https://doi.org/10.1063/1.3069281">10.1063/1.3069281</a>
  apa: Buchholz, S. S., Fischer, S. F., Kunze, U., Reuter, D., &#38; Wieck, A. D.
    (2009). Nonlocal Aharonov–Bohm conductance oscillations in an asymmetric quantum
    ring. <i>Applied Physics Letters</i>, <i>94</i>(2). <a href="https://doi.org/10.1063/1.3069281">https://doi.org/10.1063/1.3069281</a>
  bibtex: '@article{Buchholz_Fischer_Kunze_Reuter_Wieck_2009, title={Nonlocal Aharonov–Bohm
    conductance oscillations in an asymmetric quantum ring}, volume={94}, DOI={<a
    href="https://doi.org/10.1063/1.3069281">10.1063/1.3069281</a>}, number={2022107},
    journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Buchholz,
    S. S. and Fischer, S. F. and Kunze, U. and Reuter, Dirk and Wieck, A. D.}, year={2009}
    }'
  chicago: Buchholz, S. S., S. F. Fischer, U. Kunze, Dirk Reuter, and A. D. Wieck.
    “Nonlocal Aharonov–Bohm Conductance Oscillations in an Asymmetric Quantum Ring.”
    <i>Applied Physics Letters</i> 94, no. 2 (2009). <a href="https://doi.org/10.1063/1.3069281">https://doi.org/10.1063/1.3069281</a>.
  ieee: S. S. Buchholz, S. F. Fischer, U. Kunze, D. Reuter, and A. D. Wieck, “Nonlocal
    Aharonov–Bohm conductance oscillations in an asymmetric quantum ring,” <i>Applied
    Physics Letters</i>, vol. 94, no. 2, 2009.
  mla: Buchholz, S. S., et al. “Nonlocal Aharonov–Bohm Conductance Oscillations in
    an Asymmetric Quantum Ring.” <i>Applied Physics Letters</i>, vol. 94, no. 2, 022107,
    AIP Publishing, 2009, doi:<a href="https://doi.org/10.1063/1.3069281">10.1063/1.3069281</a>.
  short: S.S. Buchholz, S.F. Fischer, U. Kunze, D. Reuter, A.D. Wieck, Applied Physics
    Letters 94 (2009).
date_created: 2019-02-21T13:28:29Z
date_updated: 2022-01-06T07:03:48Z
department:
- _id: '15'
- _id: '230'
doi: 10.1063/1.3069281
intvolume: '        94'
issue: '2'
language:
- iso: eng
publication: Applied Physics Letters
publication_identifier:
  issn:
  - 0003-6951
  - 1077-3118
publication_status: published
publisher: AIP Publishing
status: public
title: Nonlocal Aharonov–Bohm conductance oscillations in an asymmetric quantum ring
type: journal_article
user_id: '42514'
volume: 94
year: '2009'
...
---
_id: '4553'
abstract:
- lang: eng
  text: We present results on ferroelectric micro-domains obtained by confocal second
    harmonic microscopy. The high potential of this technique is demonstrated by imaging
    periodic ferroelectric domain structures in the surface of planar X-cut lithium
    niobate (LN) and in the body of ridges fabricated by plasma etching on X-cut LN
    as well. In both cases the measured second harmonic signal reveals a strong contrast
    between inverted and non-inverted domain sections. This enabled a depth-resolved
    non-destructive tomography of micro-domains in ridge structures in all three dimensions.
article_type: original
author:
- first_name: Gerhard
  full_name: Berth, Gerhard
  id: '53'
  last_name: Berth
- first_name: Volker
  full_name: Wiedemeier, Volker
  last_name: Wiedemeier
- first_name: Klaus-Peter
  full_name: Hüsch, Klaus-Peter
  last_name: Hüsch
- first_name: Li
  full_name: Gui, Li
  last_name: Gui
- first_name: Hui
  full_name: Hu, Hui
  last_name: Hu
- first_name: Wolfgang
  full_name: Sohler, Wolfgang
  last_name: Sohler
- first_name: Artur
  full_name: Zrenner, Artur
  id: '606'
  last_name: Zrenner
  orcid: 0000-0002-5190-0944
citation:
  ama: Berth G, Wiedemeier V, Hüsch K-P, et al. Imaging of Ferroelectric Micro-Domains
    in X-Cut Lithium Niobate by Confocal Second Harmonic Microscopy. <i>Ferroelectrics</i>.
    2009;389(1):132-141. doi:<a href="https://doi.org/10.1080/00150190902993267">10.1080/00150190902993267</a>
  apa: Berth, G., Wiedemeier, V., Hüsch, K.-P., Gui, L., Hu, H., Sohler, W., &#38;
    Zrenner, A. (2009). Imaging of Ferroelectric Micro-Domains in X-Cut Lithium Niobate
    by Confocal Second Harmonic Microscopy. <i>Ferroelectrics</i>, <i>389</i>(1),
    132–141. <a href="https://doi.org/10.1080/00150190902993267">https://doi.org/10.1080/00150190902993267</a>
  bibtex: '@article{Berth_Wiedemeier_Hüsch_Gui_Hu_Sohler_Zrenner_2009, title={Imaging
    of Ferroelectric Micro-Domains in X-Cut Lithium Niobate by Confocal Second Harmonic
    Microscopy}, volume={389}, DOI={<a href="https://doi.org/10.1080/00150190902993267">10.1080/00150190902993267</a>},
    number={1}, journal={Ferroelectrics}, publisher={Informa UK Limited}, author={Berth,
    Gerhard and Wiedemeier, Volker and Hüsch, Klaus-Peter and Gui, Li and Hu, Hui
    and Sohler, Wolfgang and Zrenner, Artur}, year={2009}, pages={132–141} }'
  chicago: 'Berth, Gerhard, Volker Wiedemeier, Klaus-Peter Hüsch, Li Gui, Hui Hu,
    Wolfgang Sohler, and Artur Zrenner. “Imaging of Ferroelectric Micro-Domains in
    X-Cut Lithium Niobate by Confocal Second Harmonic Microscopy.” <i>Ferroelectrics</i>
    389, no. 1 (2009): 132–41. <a href="https://doi.org/10.1080/00150190902993267">https://doi.org/10.1080/00150190902993267</a>.'
  ieee: G. Berth <i>et al.</i>, “Imaging of Ferroelectric Micro-Domains in X-Cut Lithium
    Niobate by Confocal Second Harmonic Microscopy,” <i>Ferroelectrics</i>, vol. 389,
    no. 1, pp. 132–141, 2009.
  mla: Berth, Gerhard, et al. “Imaging of Ferroelectric Micro-Domains in X-Cut Lithium
    Niobate by Confocal Second Harmonic Microscopy.” <i>Ferroelectrics</i>, vol. 389,
    no. 1, Informa UK Limited, 2009, pp. 132–41, doi:<a href="https://doi.org/10.1080/00150190902993267">10.1080/00150190902993267</a>.
  short: G. Berth, V. Wiedemeier, K.-P. Hüsch, L. Gui, H. Hu, W. Sohler, A. Zrenner,
    Ferroelectrics 389 (2009) 132–141.
date_created: 2018-09-20T12:54:14Z
date_updated: 2022-01-06T07:01:09Z
department:
- _id: '15'
- _id: '230'
- _id: '35'
doi: 10.1080/00150190902993267
intvolume: '       389'
issue: '1'
keyword:
- Nonlinear microscopy
- ferroelectric micro-domains
- confocal imaging
- LiNbO3
language:
- iso: eng
page: 132-141
publication: Ferroelectrics
publication_identifier:
  issn:
  - 0015-0193
  - 1563-5112
publication_status: published
publisher: Informa UK Limited
status: public
title: Imaging of Ferroelectric Micro-Domains in X-Cut Lithium Niobate by Confocal
  Second Harmonic Microscopy
type: journal_article
user_id: '49428'
volume: 389
year: '2009'
...