抄録
Spin dynamics in GaAs/AlGaAs multiple quantum wells at room temperature are studied in subpicosecond to nanosecond time region by using the optical sampling nondegenerate pump-probe technique. Polarization-dependent absorption signals resonant to the light-hole (lh) exciton revealed the subpicosecond spin relaxation time which was several tens of times shorter than that of the heavy-hole (hh) exciton. Resonant pumping to lh and probing at hh exhibited no spin dependence within the time resolution, showing the spin memory being washed out completely during the energy relaxation from lh to hh.
| 本文言語 | English |
|---|---|
| ページ（範囲） | 964-966 |
| ページ数 | 3 |
| ジャーナル | Applied Physics Letters |
| 巻 | 68 |
| 号 | 7 |
| DOI | |
| 出版ステータス | Published - 1996 |
| 外部発表 | はい |
ASJC Scopus subject areas
- 物理学および天文学（その他）