Exciton-exciton correlation effects on FWM in GaN

Satoru Adachi, Hirotaka Sasakura, Shunichi Muto, Kouji Hazu, Takayuki Sota, Shigefusa F. Chichibu, Takashi Mukai

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Bound and unbound biexcitons in a free-standing bulk GaN are investigated by time-integrated and spectrally-resolved four-wave mixing measurements, where the formation of hetero-biexcitons that consist of A and B excitons (XX AB) as well as A biexcitons and their unbound biexciton are clearly observed. Through the FWM spectra and delay-time dependence, it is found that the interaction between A and B excitons gives rise to the phase shifts of the quantum beating and the energy shifts of the spectra, which is considered as the effect of the unbound state of XXAB (i.e. XX AB*). This interaction is found to play an important role in the FWM signals for all polarizations.

本文言語English
ページ(範囲)348-351
ページ数4
ジャーナルPhysica Status Solidi (B) Basic Research
240
2
DOI
出版ステータスPublished - 2003 11 1

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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