Coherent exciton-biexciton dynamics in GaN

K. Kyhm, R. A. Taylor, J. F. Ryan, Takao Aoki, M. Kuwata-Gonokami, B. Beaumont, P. Gibart

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Spectrally resolved and time-integrated four-wave mixing are used to measure the polarization dependence of biexcitonic signals and quantum beats between two-A-exciton (XAXAZ*) and A-biexciton (XAXA) states in a high-quality GaN epilayer. Mixed beats with two periods are observed: the first beating period corresponds to the energy splitting between XAXA*and XAXA; the second period corresponds to beating between A excitons (XA) and donor bound excitons (DOX). We also measure the polarization-dependent B-biexciton (XBXB) signal. The effective masses for the A and B holes are deduced from the binding energy.

Original languageEnglish
Article number193102
Pages (from-to)1931021-1931024
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume65
Issue number19
Publication statusPublished - 2002 May 15
Externally publishedYes

Fingerprint

Excitons
excitons
synchronism
Polarization
Four wave mixing
Epilayers
polarization
Binding energy
four-wave mixing
binding energy
LDS 751
energy

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Kyhm, K., Taylor, R. A., Ryan, J. F., Aoki, T., Kuwata-Gonokami, M., Beaumont, B., & Gibart, P. (2002). Coherent exciton-biexciton dynamics in GaN. Physical Review B - Condensed Matter and Materials Physics, 65(19), 1931021-1931024. [193102].

Coherent exciton-biexciton dynamics in GaN. / Kyhm, K.; Taylor, R. A.; Ryan, J. F.; Aoki, Takao; Kuwata-Gonokami, M.; Beaumont, B.; Gibart, P.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 65, No. 19, 193102, 15.05.2002, p. 1931021-1931024.

Research output: Contribution to journalArticle

Kyhm, K, Taylor, RA, Ryan, JF, Aoki, T, Kuwata-Gonokami, M, Beaumont, B & Gibart, P 2002, 'Coherent exciton-biexciton dynamics in GaN', Physical Review B - Condensed Matter and Materials Physics, vol. 65, no. 19, 193102, pp. 1931021-1931024.
Kyhm K, Taylor RA, Ryan JF, Aoki T, Kuwata-Gonokami M, Beaumont B et al. Coherent exciton-biexciton dynamics in GaN. Physical Review B - Condensed Matter and Materials Physics. 2002 May 15;65(19):1931021-1931024. 193102.
Kyhm, K. ; Taylor, R. A. ; Ryan, J. F. ; Aoki, Takao ; Kuwata-Gonokami, M. ; Beaumont, B. ; Gibart, P. / Coherent exciton-biexciton dynamics in GaN. In: Physical Review B - Condensed Matter and Materials Physics. 2002 ; Vol. 65, No. 19. pp. 1931021-1931024.
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