Separation of screened Coulomb interaction and phase-space filling in exciton bleaching of multiple quantum wells

Koo Chul Je, Moongoo Choi, Sang Youp Yim, Jeung Sun Ahn, Seung Han Park

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Excitonic nonlinearity in multiple quantum wells due to many-body interactions consisting of phase-space filling and screened Coulomb interaction is investigated. In particular, we show that the effects of the screened Coulomb interaction and the phase-space filling on the exciton bleaching can be separated for highly excited carrier densities by femtosecond pump pulses. We also find that the phase-space filling effects on the excitonic bleaching are about three times larger than the effects of screened Coulomb interaction and gradually decreases with increasing carrier density within the Mott density.

Original languageEnglish
Article number155312
Pages (from-to)1553121-1553125
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume66
Issue number15
DOIs
Publication statusPublished - 2002 Oct 15

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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