Measurement of photoluminescence of Cu2O at 2 K

Yu Zhou*, Gui Zhong Zhang, Wang Hua Xiang, J. B. Ketterson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


We present our measured photoluminescence of the quadrupolar transitions of the yellow series excitons of cuprous oxide at 2 K. By tuning the excitation energy in the two-photon quadrupolar absorption scheme of Cu2O, it is found that the band-gap value associated with this optical process can be characterized by a sharp resonance at 2.036 eV at cryogenic temperature. This energy value is helpful to guide a proper excitation for creating cold excitonic gas in this crystal.

Original languageEnglish (US)
Pages (from-to)1276-1277
Number of pages2
JournalChinese Physics Letters
Issue number5
StatePublished - May 1 2006

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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