Unexpectedly slow two particle decay of ultra-dense excitons in cuprous oxide

N. Laszlo Frazer, Richard D. Schaller, J. B. Ketterson

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


For an ultra-dense exciton gas in cuprous oxide (Cu2O), exciton-exciton interactions are the dominant cause of exciton decay. This study demonstrates that the accepted Auger recombination model overestimates the exciton decay rate following intense two photon excitation. Two exciton decay is relevant to the search for collective quantum behavior of excitons in bulk systems. These results suggest the existence of a new high density regime of exciton behavior.

Original languageEnglish
Pages (from-to)34-38
Number of pages5
JournalSolid State Communications
Publication statusPublished - 2013


  • A. Copper(I) oxide
  • D. Auger
  • D. Polaritons
  • E. Femtosecond laser

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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