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Optical pumping in Silicon thin films

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Figure 2.2: Left: Direct optical transition at the center of Brillouin zone of GaAs. Valence bands are denoted as: HH (heavy hole band), LH (light hole band), SO (split-off band).
Figure 2.3: Numerically calculated dependence of the initial polarization (denoted as degree of spin polarization (DSP) in theoretical articles) on the excitation energy in GaAs, for
Figure 2.5: Silicon band structure along high symmetry directions calculated by non-local pseudopotential method [Chelikowsky1976]
Figure 2.8: A direct optical transition at the center of Brillouin zone of Si. The spin-
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