Intersubband relaxation of heavy-hole excitons in GaAs quantum wells

R. A. Höpfel, R. Rodrigues, Y. Iimura, T. Yasui, Y. Segawa, Y. Aoyagi, Stephen Goodnick

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The temporal dynamics of an exciton in a higher quantum-well subband is observed. The lifetime of the exciton formed by an electron of the lowest subband and a heavy hole of the second subband in GaAs quantum wells is determined by time-resolved luminescence as 130±20 ps, in agreement with theoretical estimations of intersubband scattering by acoustic-phonon emission. Consequences for intersubband lasers are substantial.

Original languageEnglish (US)
Pages (from-to)10943-10946
Number of pages4
JournalPhysical Review B
Volume47
Issue number16
DOIs
StatePublished - 1993
Externally publishedYes

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Excitons
Semiconductor quantum wells
excitons
quantum wells
Luminescence
Acoustics
Scattering
luminescence
life (durability)
acoustics
Electrons
Lasers
scattering
lasers
electrons
LDS 751
gallium arsenide

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Höpfel, R. A., Rodrigues, R., Iimura, Y., Yasui, T., Segawa, Y., Aoyagi, Y., & Goodnick, S. (1993). Intersubband relaxation of heavy-hole excitons in GaAs quantum wells. Physical Review B, 47(16), 10943-10946. https://doi.org/10.1103/PhysRevB.47.10943

Intersubband relaxation of heavy-hole excitons in GaAs quantum wells. / Höpfel, R. A.; Rodrigues, R.; Iimura, Y.; Yasui, T.; Segawa, Y.; Aoyagi, Y.; Goodnick, Stephen.

In: Physical Review B, Vol. 47, No. 16, 1993, p. 10943-10946.

Research output: Contribution to journalArticle

Höpfel, RA, Rodrigues, R, Iimura, Y, Yasui, T, Segawa, Y, Aoyagi, Y & Goodnick, S 1993, 'Intersubband relaxation of heavy-hole excitons in GaAs quantum wells', Physical Review B, vol. 47, no. 16, pp. 10943-10946. https://doi.org/10.1103/PhysRevB.47.10943
Höpfel RA, Rodrigues R, Iimura Y, Yasui T, Segawa Y, Aoyagi Y et al. Intersubband relaxation of heavy-hole excitons in GaAs quantum wells. Physical Review B. 1993;47(16):10943-10946. https://doi.org/10.1103/PhysRevB.47.10943
Höpfel, R. A. ; Rodrigues, R. ; Iimura, Y. ; Yasui, T. ; Segawa, Y. ; Aoyagi, Y. ; Goodnick, Stephen. / Intersubband relaxation of heavy-hole excitons in GaAs quantum wells. In: Physical Review B. 1993 ; Vol. 47, No. 16. pp. 10943-10946.
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