Two-photon excitation of confined biexcitons in CuCl quantum dots

K. Miyajima, G. Oohata, Y. Kagotani, M. Ashida, K. Edamatsu, T. Itoh

Research output: Contribution to journalConference articlepeer-review

13 Citations (Scopus)


We have studied direct creation processes of confined biexcitons in CuCl quantum dots by polarization-dependent resonant two-photon excitation spectroscopy. The two-photon absorption band for the lowest state of the biexciton (total angular momentum J=0) which appears on the lower energy side of confined exciton band was identified from the analysis of the polarization dependence of the photoluminescence excitation spectrum of the biexciton. Furthermore, the two-photon excitation process for the excited state of the biexciton (J=2) was also found with polarization dependence different from the J=0 biexciton state.

Original languageEnglish
Pages (from-to)33-36
Number of pages4
JournalPhysica E: Low-Dimensional Systems and Nanostructures
Issue number1-4
Publication statusPublished - 2005 Feb
EventInternational Conference on Quantum Dots - Banff, Alberta, Canada
Duration: 2004 May 102004 May 13


  • Biexciton
  • Quantum dots
  • Two-photon absorption


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