Rabi flopping of charge and spin currents generated by ultrafast two-colour photoexcitation of semiconductor quantum wells

B. Pasenow, H. T. Duc, T. Meier, Stephan W Koch

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Charge and spin currents generated by ultrafast two-colour laser excitation of semiconductor quantum wells are computed using Bloch equations formulated in the basis of k {dot operator} p wave functions. The optically induced interband and intraband excitations are treated nonperturbatively for a consistent description of phototransport in the high-excitation regime. The analysis shows that the photoexcited charge and spin currents depend on the amplitudes of the incident ω and 2 ω beams in a highly nonlinear fashion. It is predicted that Rabi flopping should be observable experimentally leading to intensity-dependent changes of the current directions.

Original languageEnglish (US)
Pages (from-to)61-65
Number of pages5
JournalSolid State Communications
Volume145
Issue number1-2
DOIs
StatePublished - Jan 2008
Externally publishedYes

Fingerprint

Laser excitation
Photoexcitation
Wave functions
photoexcitation
Semiconductor quantum wells
Mathematical operators
quantum wells
Color
color
excitation
wave functions
operators
lasers
Direction compound

Keywords

  • A. Nanostructures
  • A. Semiconductors
  • D. Optical properties
  • E. Nonlinear optics

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Rabi flopping of charge and spin currents generated by ultrafast two-colour photoexcitation of semiconductor quantum wells. / Pasenow, B.; Duc, H. T.; Meier, T.; Koch, Stephan W.

In: Solid State Communications, Vol. 145, No. 1-2, 01.2008, p. 61-65.

Research output: Contribution to journalArticle

@article{50669f5d9bf04c19992f3e5c2d3a7d61,
title = "Rabi flopping of charge and spin currents generated by ultrafast two-colour photoexcitation of semiconductor quantum wells",
abstract = "Charge and spin currents generated by ultrafast two-colour laser excitation of semiconductor quantum wells are computed using Bloch equations formulated in the basis of k {dot operator} p wave functions. The optically induced interband and intraband excitations are treated nonperturbatively for a consistent description of phototransport in the high-excitation regime. The analysis shows that the photoexcited charge and spin currents depend on the amplitudes of the incident ω and 2 ω beams in a highly nonlinear fashion. It is predicted that Rabi flopping should be observable experimentally leading to intensity-dependent changes of the current directions.",
keywords = "A. Nanostructures, A. Semiconductors, D. Optical properties, E. Nonlinear optics",
author = "B. Pasenow and Duc, {H. T.} and T. Meier and Koch, {Stephan W}",
year = "2008",
month = "1",
doi = "10.1016/j.ssc.2007.09.029",
language = "English (US)",
volume = "145",
pages = "61--65",
journal = "Solid State Communications",
issn = "0038-1098",
publisher = "Elsevier Limited",
number = "1-2",

}

TY - JOUR

T1 - Rabi flopping of charge and spin currents generated by ultrafast two-colour photoexcitation of semiconductor quantum wells

AU - Pasenow, B.

AU - Duc, H. T.

AU - Meier, T.

AU - Koch, Stephan W

PY - 2008/1

Y1 - 2008/1

N2 - Charge and spin currents generated by ultrafast two-colour laser excitation of semiconductor quantum wells are computed using Bloch equations formulated in the basis of k {dot operator} p wave functions. The optically induced interband and intraband excitations are treated nonperturbatively for a consistent description of phototransport in the high-excitation regime. The analysis shows that the photoexcited charge and spin currents depend on the amplitudes of the incident ω and 2 ω beams in a highly nonlinear fashion. It is predicted that Rabi flopping should be observable experimentally leading to intensity-dependent changes of the current directions.

AB - Charge and spin currents generated by ultrafast two-colour laser excitation of semiconductor quantum wells are computed using Bloch equations formulated in the basis of k {dot operator} p wave functions. The optically induced interband and intraband excitations are treated nonperturbatively for a consistent description of phototransport in the high-excitation regime. The analysis shows that the photoexcited charge and spin currents depend on the amplitudes of the incident ω and 2 ω beams in a highly nonlinear fashion. It is predicted that Rabi flopping should be observable experimentally leading to intensity-dependent changes of the current directions.

KW - A. Nanostructures

KW - A. Semiconductors

KW - D. Optical properties

KW - E. Nonlinear optics

UR - http://www.scopus.com/inward/record.url?scp=36249012525&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=36249012525&partnerID=8YFLogxK

U2 - 10.1016/j.ssc.2007.09.029

DO - 10.1016/j.ssc.2007.09.029

M3 - Article

AN - SCOPUS:36249012525

VL - 145

SP - 61

EP - 65

JO - Solid State Communications

JF - Solid State Communications

SN - 0038-1098

IS - 1-2

ER -