Microscopic theory of optical dephasing in semiconductors

Stephan W Koch, T. Meier, F. Jahnke, P. Thomas

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Dephasing, i.e. the decay of the optical interband polarization in a semiconductor results from destructive interference effects between different microscopic contributions. For a system without any disorder it is shown that the many-body Coulomb correlations lead to excitation-induced dephasing which becomes increasingly important at elevated excitation levels. The effect of disorder-induced dephasing is analyzed for low excitation levels, where the combined influence of excitonic, biexcitonic, and disorder scattering contributions lead to a temporal decay of the four-wave-mixing signal.

Original languageEnglish (US)
Pages (from-to)511-517
Number of pages7
JournalApplied Physics A: Materials Science and Processing
Volume71
Issue number5
DOIs
StatePublished - Nov 2000
Externally publishedYes

Fingerprint

Four wave mixing
Light polarization
disorders
Scattering
Semiconductor materials
excitation
optical polarization
decay
four-wave mixing
interference
scattering

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Microscopic theory of optical dephasing in semiconductors. / Koch, Stephan W; Meier, T.; Jahnke, F.; Thomas, P.

In: Applied Physics A: Materials Science and Processing, Vol. 71, No. 5, 11.2000, p. 511-517.

Research output: Contribution to journalArticle

Koch, Stephan W ; Meier, T. ; Jahnke, F. ; Thomas, P. / Microscopic theory of optical dephasing in semiconductors. In: Applied Physics A: Materials Science and Processing. 2000 ; Vol. 71, No. 5. pp. 511-517.
@article{7660f03d2ade4f45bafe1e3a562ac4de,
title = "Microscopic theory of optical dephasing in semiconductors",
abstract = "Dephasing, i.e. the decay of the optical interband polarization in a semiconductor results from destructive interference effects between different microscopic contributions. For a system without any disorder it is shown that the many-body Coulomb correlations lead to excitation-induced dephasing which becomes increasingly important at elevated excitation levels. The effect of disorder-induced dephasing is analyzed for low excitation levels, where the combined influence of excitonic, biexcitonic, and disorder scattering contributions lead to a temporal decay of the four-wave-mixing signal.",
author = "Koch, {Stephan W} and T. Meier and F. Jahnke and P. Thomas",
year = "2000",
month = "11",
doi = "10.1007/s003390000707",
language = "English (US)",
volume = "71",
pages = "511--517",
journal = "Applied Physics",
issn = "0340-3793",
publisher = "Springer Verlag",
number = "5",

}

TY - JOUR

T1 - Microscopic theory of optical dephasing in semiconductors

AU - Koch, Stephan W

AU - Meier, T.

AU - Jahnke, F.

AU - Thomas, P.

PY - 2000/11

Y1 - 2000/11

N2 - Dephasing, i.e. the decay of the optical interband polarization in a semiconductor results from destructive interference effects between different microscopic contributions. For a system without any disorder it is shown that the many-body Coulomb correlations lead to excitation-induced dephasing which becomes increasingly important at elevated excitation levels. The effect of disorder-induced dephasing is analyzed for low excitation levels, where the combined influence of excitonic, biexcitonic, and disorder scattering contributions lead to a temporal decay of the four-wave-mixing signal.

AB - Dephasing, i.e. the decay of the optical interband polarization in a semiconductor results from destructive interference effects between different microscopic contributions. For a system without any disorder it is shown that the many-body Coulomb correlations lead to excitation-induced dephasing which becomes increasingly important at elevated excitation levels. The effect of disorder-induced dephasing is analyzed for low excitation levels, where the combined influence of excitonic, biexcitonic, and disorder scattering contributions lead to a temporal decay of the four-wave-mixing signal.

UR - http://www.scopus.com/inward/record.url?scp=0034322463&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034322463&partnerID=8YFLogxK

U2 - 10.1007/s003390000707

DO - 10.1007/s003390000707

M3 - Article

AN - SCOPUS:0034322463

VL - 71

SP - 511

EP - 517

JO - Applied Physics

JF - Applied Physics

SN - 0340-3793

IS - 5

ER -