Spin-sensitive bleaching and spin relaxation in QWs

DOI to cite this document:: 10.5283/epub.11489

Schneider, Petra ; Ganichev, Sergey ; Kainz, Josef ; Rössler, Ulrich ; Wegscheider, Werner ; Weiss, Dieter ; Prettl, Wilhelm ; Belkov, Vassilij ; Golub, Leonid E. ; Schuh, Dieter

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Date of publication of this fulltext: 15 Dec 2009 08:53

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Abstract

Spin-sensitive saturation of absorption of infrared radiation has been investigated in p-type GaAs QWs. It is shown that the absorption saturation of circularly polarized radiation is mostly controlled by the spin relaxation time of the holes. The saturation behavior has been investigated for different QW widths and in dependence on the temperature with the result that the saturation intensity ...