Exciton dynamics studied via internal THz transitions

R. A. Kaindl, D. Hägele, M. A. Carnahan, R. Lövenich, D. S. Chemla

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

We employ a novel, ultrafast terahertz probe to investigate the dynamical interplay of optically-induced excitons and unbound electron-hole pairs in GaAs quantum wells. Resonant creation of heavy-hole excitons induces a new low-energy oscillator linked to transitions between the internal exciton degrees of freedom. The time-resolved terahertz optical conductivity is found to be a probe well suited for studies of fundamental processes such as formation, relaxation and ionization of excitons.

Original languageEnglish (US)
Pages (from-to)451-454
Number of pages4
JournalPhysica Status Solidi (B) Basic Research
Volume238
Issue number3
DOIs
StatePublished - Aug 2003

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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