From exciton resonance to frequency mixing in GaAs multiple quantum wells

Y. H. Ahn, J. S. Yahng, J. Y. Sohn, K. J. Yee, S. C. Hohng, J. C. Woo, D. S. Kim, T. Meier, Stephan W Koch, Y. S. Lim, E. K. Kim

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

An off-resonant frequency mixing component was found to coexist with that of the exciton resonance in the femtosecond nondegenerate four-wave mixing signal in GaAs multiple quantum wells. The frequency mixing contribution dominates over that of the exciton resonance at high intensity and high detuning. The existence of the frequency mixing is temporally limited by the pulse width, whereas the exciton is governed by the spectral pulse overlap and the dephasing time.

Original languageEnglish (US)
Pages (from-to)3879-3882
Number of pages4
JournalPhysical Review Letters
Volume82
Issue number19
StatePublished - May 10 1999
Externally publishedYes

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excitons
quantum wells
four-wave mixing
resonant frequencies
pulse duration
pulses

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Ahn, Y. H., Yahng, J. S., Sohn, J. Y., Yee, K. J., Hohng, S. C., Woo, J. C., ... Kim, E. K. (1999). From exciton resonance to frequency mixing in GaAs multiple quantum wells. Physical Review Letters, 82(19), 3879-3882.

From exciton resonance to frequency mixing in GaAs multiple quantum wells. / Ahn, Y. H.; Yahng, J. S.; Sohn, J. Y.; Yee, K. J.; Hohng, S. C.; Woo, J. C.; Kim, D. S.; Meier, T.; Koch, Stephan W; Lim, Y. S.; Kim, E. K.

In: Physical Review Letters, Vol. 82, No. 19, 10.05.1999, p. 3879-3882.

Research output: Contribution to journalArticle

Ahn, YH, Yahng, JS, Sohn, JY, Yee, KJ, Hohng, SC, Woo, JC, Kim, DS, Meier, T, Koch, SW, Lim, YS & Kim, EK 1999, 'From exciton resonance to frequency mixing in GaAs multiple quantum wells', Physical Review Letters, vol. 82, no. 19, pp. 3879-3882.
Ahn YH, Yahng JS, Sohn JY, Yee KJ, Hohng SC, Woo JC et al. From exciton resonance to frequency mixing in GaAs multiple quantum wells. Physical Review Letters. 1999 May 10;82(19):3879-3882.
Ahn, Y. H. ; Yahng, J. S. ; Sohn, J. Y. ; Yee, K. J. ; Hohng, S. C. ; Woo, J. C. ; Kim, D. S. ; Meier, T. ; Koch, Stephan W ; Lim, Y. S. ; Kim, E. K. / From exciton resonance to frequency mixing in GaAs multiple quantum wells. In: Physical Review Letters. 1999 ; Vol. 82, No. 19. pp. 3879-3882.
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AU - Hohng, S. C.

AU - Woo, J. C.

AU - Kim, D. S.

AU - Meier, T.

AU - Koch, Stephan W

AU - Lim, Y. S.

AU - Kim, E. K.

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N2 - An off-resonant frequency mixing component was found to coexist with that of the exciton resonance in the femtosecond nondegenerate four-wave mixing signal in GaAs multiple quantum wells. The frequency mixing contribution dominates over that of the exciton resonance at high intensity and high detuning. The existence of the frequency mixing is temporally limited by the pulse width, whereas the exciton is governed by the spectral pulse overlap and the dephasing time.

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