Optical Second Harmonic Generation in Semiconductor Nanostructures

Figure 9

Calculated Second Harmonic Generation efficiency spectra of the Si(001)-SiO₂ interface corresponding to the geometry given in Figure 8 (solid line) are shown in comparison to the SHG spectra calculated after removal of the bridge oxygen (dashed line). Fully relaxed (a) (unrelaxed (b)) atomic structure of the Si(001)-SiO₂ interface is used for optical calculations (adapted from [25]).

(a)

(b)