抄録
We have studied the exciton-polariton dynamics in a c-face bulk ZnO crystal grown by the seeded vapor transport method. We have performed two-pulse spectrally resolved four-wave mixing (SR-FWM) and three-pulse SR-FWM at T=10 K. In two-pulse FWM experiment, obtained FWM signals showed the fast dephasing which has been attributed to the strong polariton dispersion of the upper polariton of B exciton. On the other hand, in three-pulse FWM experiment, the signal decay shows the free exciton population relaxation. Observed FWM signal has decayed with time constant ∼12 ps which may represent exciton-polariton lifetime.
| 本文言語 | English |
|---|---|
| ページ（範囲） | 7-10 |
| ページ数 | 4 |
| ジャーナル | Journal of Luminescence |
| 巻 | 112 |
| 号 | 1 |
| DOI | |
| 出版ステータス | Published - 2005 4月 1 |
ASJC Scopus subject areas
- 生物理学
- 生化学
- 化学 (全般)
- 原子分子物理学および光学
- 凝縮系物理学