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Intersubband exchange interaction induced by optically excited electron spins in GaAs/AlGaAs quantum wells
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10.1063/1.3118584
/content/aip/journal/apl/94/16/10.1063/1.3118584
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/16/10.1063/1.3118584
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The absorption spectrum of the QWs taken at 4.5 K. Each absorption peak (with energy value) is labeled to the corresponding exciton resonance. The dotted line at 1.649 eV is an eye-guide [see also Fig. 2(c)].

Image of FIG. 2.
FIG. 2.

Results of TRFR measurements. (a) measured at with pump and probe energies set at 1.543 eV, in which a response seen at is most likely an interference effect, and (b) . (c) measured at with the probe energy set at 1.649 eV (indicated by dotted line in Fig. 1).

Image of FIG. 3.
FIG. 3.

(a) Log-scale plots of the absorbance at for (squares) and (triangles) polarized probe beams in the range of to exciton resonance. The inset is an extension around . The absorbance taken before the excitation with both pump and probe linear-polarized is shown (circles) as reference.

Image of FIG. 4.
FIG. 4.

(a) Differential transmission at probe with pump (1.543 eV). (b) at are shown in the range of and exciton resonance.

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/content/aip/journal/apl/94/16/10.1063/1.3118584
2009-04-21
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Intersubband exchange interaction induced by optically excited electron spins in GaAs/AlGaAs quantum wells
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/16/10.1063/1.3118584
10.1063/1.3118584
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