The influence of electron-phonon scattering on the spatio-temporal dynamics of electronic wavepackets in semiconductor quantum wells

F. Steininger, A. Knorr, P. Thomas, Stephan W Koch

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The dynamic evolution of spatially inhomogeneous electronic excitations coupled to a phonon reservoir is investigated on ultrashort time scales. For this purpose, the in-plane propagation of an optically excited electron-hole density profile is studied in an idealized semiconductor quantum well with equal electron and hole masses. Assuming low density and excitation pulses localized on a micron scale, it is shown that the optically induced electron transport exhibits a crossover from ballistic to diffusive motion depending on the details of the electron-phonon coupling.

Original languageEnglish (US)
Pages (from-to)45-52
Number of pages8
JournalZeitschrift für Physik B Condensed Matter
Volume103
Issue number1
StatePublished - 1997
Externally publishedYes

Fingerprint

Phonon scattering
Electron scattering
Semiconductor quantum wells
quantum wells
Electrons
electron mass
scattering
electronics
ballistics
excitation
crossovers
electrons
Ballistics
propagation
profiles
pulses

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

The influence of electron-phonon scattering on the spatio-temporal dynamics of electronic wavepackets in semiconductor quantum wells. / Steininger, F.; Knorr, A.; Thomas, P.; Koch, Stephan W.

In: Zeitschrift für Physik B Condensed Matter, Vol. 103, No. 1, 1997, p. 45-52.

Research output: Contribution to journalArticle

@article{78af282357a14e8c9c9301c3ad178bf3,
title = "The influence of electron-phonon scattering on the spatio-temporal dynamics of electronic wavepackets in semiconductor quantum wells",
abstract = "The dynamic evolution of spatially inhomogeneous electronic excitations coupled to a phonon reservoir is investigated on ultrashort time scales. For this purpose, the in-plane propagation of an optically excited electron-hole density profile is studied in an idealized semiconductor quantum well with equal electron and hole masses. Assuming low density and excitation pulses localized on a micron scale, it is shown that the optically induced electron transport exhibits a crossover from ballistic to diffusive motion depending on the details of the electron-phonon coupling.",
author = "F. Steininger and A. Knorr and P. Thomas and Koch, {Stephan W}",
year = "1997",
language = "English (US)",
volume = "103",
pages = "45--52",
journal = "European Physical Journal B",
issn = "1434-6028",
publisher = "Springer New York",
number = "1",

}

TY - JOUR

T1 - The influence of electron-phonon scattering on the spatio-temporal dynamics of electronic wavepackets in semiconductor quantum wells

AU - Steininger, F.

AU - Knorr, A.

AU - Thomas, P.

AU - Koch, Stephan W

PY - 1997

Y1 - 1997

N2 - The dynamic evolution of spatially inhomogeneous electronic excitations coupled to a phonon reservoir is investigated on ultrashort time scales. For this purpose, the in-plane propagation of an optically excited electron-hole density profile is studied in an idealized semiconductor quantum well with equal electron and hole masses. Assuming low density and excitation pulses localized on a micron scale, it is shown that the optically induced electron transport exhibits a crossover from ballistic to diffusive motion depending on the details of the electron-phonon coupling.

AB - The dynamic evolution of spatially inhomogeneous electronic excitations coupled to a phonon reservoir is investigated on ultrashort time scales. For this purpose, the in-plane propagation of an optically excited electron-hole density profile is studied in an idealized semiconductor quantum well with equal electron and hole masses. Assuming low density and excitation pulses localized on a micron scale, it is shown that the optically induced electron transport exhibits a crossover from ballistic to diffusive motion depending on the details of the electron-phonon coupling.

UR - http://www.scopus.com/inward/record.url?scp=0002188699&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0002188699&partnerID=8YFLogxK

M3 - Article

VL - 103

SP - 45

EP - 52

JO - European Physical Journal B

JF - European Physical Journal B

SN - 1434-6028

IS - 1

ER -