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

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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


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 (US)
Pages (from-to)34-38
Number of pages5
JournalSolid State Communications
StatePublished - 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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