Coherent exciton-biexciton interaction studied by femtosecond spectroscopy

I. Galbraith, I. J. Blewett, A. Tookey, A. K. Kar, B. S. Wherrett

Research output: Contribution to journalArticle

Abstract

We report the observation of oscillations with delay time in the time integrated four-wave-mixing signal emitted following sub-picosecond two-beam excitation. The oscillations are shown to originate from exciton-biexciton interference in the photon-echo signal. The results are modelled within the density-operator framework and good agreement is found. The dependence of biexciton binding energy on well width is obtained from the variation in oscillation period. © 1998 Elsevier Science B.V. All rights reserved.

Original languageEnglish
Pages (from-to)654-661
Number of pages8
JournalJournal of Crystal Growth
Volume184-185
Publication statusPublished - 1998

Fingerprint

excitons
oscillations
spectroscopy
interactions
four-wave mixing
echoes
time lag
binding energy
interference
operators
photons
excitation

Keywords

  • Biexcitons
  • Four-wave mixing
  • Quantum wells

Cite this

Galbraith, I. ; Blewett, I. J. ; Tookey, A. ; Kar, A. K. ; Wherrett, B. S. / Coherent exciton-biexciton interaction studied by femtosecond spectroscopy. In: Journal of Crystal Growth. 1998 ; Vol. 184-185. pp. 654-661.
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Coherent exciton-biexciton interaction studied by femtosecond spectroscopy. / Galbraith, I.; Blewett, I. J.; Tookey, A.; Kar, A. K.; Wherrett, B. S.

In: Journal of Crystal Growth, Vol. 184-185, 1998, p. 654-661.

Research output: Contribution to journalArticle

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AU - Blewett, I. J.

AU - Tookey, A.

AU - Kar, A. K.

AU - Wherrett, B. S.

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