Figure 3.

The SHG coefficient as a functions of the incident photon energy ħω for (a) ω0 = 1 × 1013 s-1 and (b) ω0 = 2 × 1014 s-1, considering excitonic effects with (red line) and without Coulomb (black line)interaction. The blue line corresponds to the case without excitonic effects.

Flórez and Camacho Nanoscale Research Letters 2011 6:268   doi:10.1186/1556-276X-6-268
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