---
_id: '23498'
abstract:
- lang: eng
  text: The ultrafast dynamics of photoexcitations at silicon surfaces is investigated
    using a surface-sensitive purely optical technique. In the experiments, the diffracted
    second harmonic generated by sequences of ultrashort laser pulses is detected
    as a function of the time delay between the pulses. It is demonstrated that this
    five-wave-mixing technique can be used to measure the temporal evolution of the
    optical polarization and the photoexcited populations at the surface. The experimental
    results can be reproduced by numerical solutions of optical Bloch equations. The
    theoretical analysis allows one to investigate which dephasing times and relaxation
    processes are compatible with experiment. Furthermore, it is outlined how one
    can describe optical nonlinearities at surfaces using a microscopic theory within
    the framework of semiconductor Bloch equations.
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: S W
  full_name: Koch, S W
  last_name: Koch
- first_name: U
  full_name: Höfer, U
  last_name: Höfer
citation:
  ama: 'Meier T, Reichelt M, Koch SW, Höfer U. Femtosecond time-resolved five-wave
    mixing at silicon surfaces. <i>Journal of Physics: Condensed Matter</i>. 2005;17(8):S221-S244.
    doi:<a href="https://doi.org/10.1088/0953-8984/17/8/003">10.1088/0953-8984/17/8/003</a>'
  apa: 'Meier, T., Reichelt, M., Koch, S. W., &#38; Höfer, U. (2005). Femtosecond
    time-resolved five-wave mixing at silicon surfaces. <i>Journal of Physics: Condensed
    Matter</i>, <i>17</i>(8), S221–S244. <a href="https://doi.org/10.1088/0953-8984/17/8/003">https://doi.org/10.1088/0953-8984/17/8/003</a>'
  bibtex: '@article{Meier_Reichelt_Koch_Höfer_2005, title={Femtosecond time-resolved
    five-wave mixing at silicon surfaces}, volume={17}, DOI={<a href="https://doi.org/10.1088/0953-8984/17/8/003">10.1088/0953-8984/17/8/003</a>},
    number={8}, journal={Journal of Physics: Condensed Matter}, author={Meier, Torsten
    and Reichelt, Matthias and Koch, S W and Höfer, U}, year={2005}, pages={S221–S244}
    }'
  chicago: 'Meier, Torsten, Matthias Reichelt, S W Koch, and U Höfer. “Femtosecond
    Time-Resolved Five-Wave Mixing at Silicon Surfaces.” <i>Journal of Physics: Condensed
    Matter</i> 17, no. 8 (2005): S221–44. <a href="https://doi.org/10.1088/0953-8984/17/8/003">https://doi.org/10.1088/0953-8984/17/8/003</a>.'
  ieee: 'T. Meier, M. Reichelt, S. W. Koch, and U. Höfer, “Femtosecond time-resolved
    five-wave mixing at silicon surfaces,” <i>Journal of Physics: Condensed Matter</i>,
    vol. 17, no. 8, pp. S221–S244, 2005, doi: <a href="https://doi.org/10.1088/0953-8984/17/8/003">10.1088/0953-8984/17/8/003</a>.'
  mla: 'Meier, Torsten, et al. “Femtosecond Time-Resolved Five-Wave Mixing at Silicon
    Surfaces.” <i>Journal of Physics: Condensed Matter</i>, vol. 17, no. 8, 2005,
    pp. S221–44, doi:<a href="https://doi.org/10.1088/0953-8984/17/8/003">10.1088/0953-8984/17/8/003</a>.'
  short: 'T. Meier, M. Reichelt, S.W. Koch, U. Höfer, Journal of Physics: Condensed
    Matter 17 (2005) S221–S244.'
date_created: 2021-08-24T09:20:43Z
date_updated: 2023-04-24T06:14:12Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '230'
doi: 10.1088/0953-8984/17/8/003
extern: '1'
intvolume: '        17'
issue: '8'
language:
- iso: eng
page: S221-S244
publication: 'Journal of Physics: Condensed Matter'
publication_identifier:
  issn:
  - 0953-8984
  - 1361-648X
publication_status: published
status: public
title: Femtosecond time-resolved five-wave mixing at silicon surfaces
type: journal_article
user_id: '49063'
volume: 17
year: '2005'
...