Spin-sensitive bleaching and monopolar spin orientation in quantum wells.
نویسندگان
چکیده
Spin-sensitive bleaching of the absorption of far-infrared radiation has been observed in p-type GaAs/AlGaAs quantum well structures. The absorption of circularly polarized radiation saturates at lower intensities than that of linearly polarized light due to monopolar spin orientation in the first heavy-hole subband. Spin relaxation times of holes in p-type material in the range of tens of ps were derived from the intensity dependence of the absorption.
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عنوان ژورنال:
- Physical review letters
دوره 88 5 شماره
صفحات -
تاریخ انتشار 2002