Optical spin orientation under inter- and intra-subband transitions in QWs

URN to cite this document:: urn:nbn:de:bvb:355-epub-21719
DOI to cite this document:: 10.5283/epub.2171

Tarasenko, Sergey ; Ivchenko, Eougenious ; Belkov, Vassilij ; Ganichev, Sergey ; Schowalter, Dieter ; Schneider, Petra ; Sollinger, M. ; Prettl, Wilhelm ; Ustinov, V. ; Zhukov, A. ; Vorobjev, L.

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Date of publication of this fulltext: 05 Aug 2009 13:37

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Abstract

It is shown that absorption of circularly polarized infrared radiation achieved by inter-subband and intra-subband (Drude-like) transitions results in a monopolar spin orientation of free carriers. The monopolar spin polarization in zinc-blende-based quantum wells (QWs) is demonstrated by the observation of the spin-galvanic and circular photogalvanic effects. It is shown that monopolar spin ...